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Pollock D, Bailey HD, Hasanoff S, Munn Z, Valenzuela C, Stern C, Price C, Marriott R, Gliddon J, Lewis C, Michie C, Bowie M, Penny M, Reibel T, Warland J, Farrant B, White SW, Shepherd CCJ. First Nations Peoples' perceptions, knowledge and beliefs regarding stillbirth prevention and bereavement practices: A mixed methods systematic review. Women Birth 2024; 37:101604. [PMID: 38640744 DOI: 10.1016/j.wombi.2024.101604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 03/24/2024] [Accepted: 03/25/2024] [Indexed: 04/21/2024]
Abstract
BACKGROUND First Nations Peoples endure disproportionate rates of stillbirth compared with non-First Nations Peoples. Previous interventions have aimed at reducing stillbirth in First Nations Peoples and providing better bereavement care without necessarily understanding the perceptions, knowledge and beliefs that could influence the design of the intervention and implementation. AIM The aim of this review was to understand the perceptions, knowledge and beliefs about stillbirth prevention and bereavement of First Nations Peoples from the US, Canada, Aotearoa/New Zealand, and Australia. METHODS This review was conducted in accordance with the JBI methodology for a convergent integrated mixed method systematic review. This review was overseen by an advisory board of Aboriginal Elders, researchers, and clinicians. A search of eight databases (PubMed, MEDLINE, PsycInfo, CINAHL, Embase, Emcare, Dissertations and Theses and Indigenous Health InfoNet) and grey literature was conducted. All studies were screened, extracted, and appraised for quality by two reviewers and results were categorised, and narratively summarised. RESULTS Ten studies were included within this review. Their findings were summarised into four categories: safeguarding baby, traditional practices of birthing and grieving, bereavement photography and post-mortem examination. The results indicate a diversity of perceptions, knowledge and beliefs primarily around smoking cessation and bereavement practices after stillbirth. However, there was a paucity of research available. CONCLUSIONS Further research is needed to understand the perceptions, knowledge and beliefs about stillbirth among First Nations Peoples. Without research within this area, interventions to prevent stillbirth and support bereaved parents and their communities after stillbirth may face barriers to implementation.
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Affiliation(s)
- Danielle Pollock
- Health Evidence Synthesis Recommendations and Impact (HESRI), School of Public Health, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, SA, Australia.
| | - Helen D Bailey
- Curtin Medical School, Faculty of Health Sciences, Curtin University, Perth, WA, Australia; Telethon Kids Institute, The University of Western Australia, Perth, WA, Australia
| | - Sabira Hasanoff
- Health Evidence Synthesis Recommendations and Impact (HESRI), School of Public Health, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, SA, Australia
| | - Zachary Munn
- Health Evidence Synthesis Recommendations and Impact (HESRI), School of Public Health, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, SA, Australia
| | - Chelsea Valenzuela
- JBI, School of Public Health, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, SA, Australia
| | - Cindy Stern
- JBI, School of Public Health, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, SA, Australia
| | - Carrie Price
- Albert S. Cook Library, Towson University, Towson, MD, USA
| | - Rhonda Marriott
- Ngangk Yira Institute for Change, Murdoch University, Perth, WA, Australia
| | - Janinne Gliddon
- Ngangk Yira Institute for Change, Murdoch University, Perth, WA, Australia
| | - Carolyn Lewis
- Telethon Kids Institute, The University of Western Australia, Perth, WA, Australia
| | - Carol Michie
- Curtin Medical School, Faculty of Health Sciences, Curtin University, Perth, WA, Australia
| | - Muriel Bowie
- Telethon Kids Institute, The University of Western Australia, Perth, WA, Australia
| | - Millie Penny
- Telethon Kids Institute, The University of Western Australia, Perth, WA, Australia
| | - Tracy Reibel
- Ngangk Yira Institute for Change, Murdoch University, Perth, WA, Australia
| | | | - Brad Farrant
- Telethon Kids Institute, The University of Western Australia, Perth, WA, Australia
| | - Scott W White
- Division of Obstetrics and Gynaecology, The University of Western Australia, Perth, WA, Australia; Maternal Fetal Medicine Service, King Edward Memorial Hospital, Perth, WA, Australia; The Western Australian Centre for Health Research for Women and Babies, The University of Western Australia, Perth, WA, Australia
| | - Carrington C J Shepherd
- Curtin Medical School, Faculty of Health Sciences, Curtin University, Perth, WA, Australia; Telethon Kids Institute, The University of Western Australia, Perth, WA, Australia; Ngangk Yira Institute for Change, Murdoch University, Perth, WA, Australia
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White SW. Editor-in-chief's introduction to ANZJOG 64(2). Aust N Z J Obstet Gynaecol 2024; 64:83-84. [PMID: 38597287 DOI: 10.1111/ajo.13818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Accepted: 03/27/2024] [Indexed: 04/11/2024]
Affiliation(s)
- Scott W White
- The Western Australian Centre for Health Research for Women and Babies, The University of Western Australia, Perth, Western Australia, Australia
- Division of Obstetrics and Gynaecology, The University of Western Australia, Perth, Western Australia, Australia
- Maternal Fetal Medicine Service, King Edward Memorial Hospital, Subiaco, Western Australia, Australia
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Simmons GL, Corbett BA, Lerner MD, Wofford K, White SW. Social competence in autism: A structural equation modeling approach. Autism Res 2024; 17:761-774. [PMID: 38481386 DOI: 10.1002/aur.3108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 01/25/2024] [Indexed: 04/13/2024]
Abstract
Autistic individuals present with difficulties in social competence (e.g., navigating social interactions and fostering relationships). Clinical interventions widely target social cognition and social behavior, but there is inconsistent understanding of the underlying components of social competence. The present study used structural equation modeling to examine social cognition and social behavior and explore the relationship between these latent constructs. Autistic youth (ages 10-17; n = 219) and their caregivers participated in this study. Constructs of social cognition and social behavior were captured using caregiver-report and self-report rating scales, as well as observational measures and direct clinical assessments (e.g., NEPSY-II). Measurement models of social cognition and social behavior demonstrated adequate to good fit. Correlational models demonstrated adequate to poor fit, indicating latent constructs of social cognition and social behavior are not closely related in autistic youth. Exploratory examination of a subsample of male youth (n = 157) evidenced improved model fit of social behavior, specifically. Findings tease apart social cognition and social behavior as cohesive and separable constructs; results do not support a structural relationship between social cognition and social behavior. Noted treatment implications include consideration of how targeting social cognition and social behavior together or separately may support autistic youth's progress toward reaching their identified therapeutic goals and supporting their self-directed social development.
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Affiliation(s)
- G L Simmons
- TEACCH Autism Program, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
- Center for Youth Development and Intervention, Department of Psychology, The University of Alabama, Tuscaloosa, Alabama, USA
| | - B A Corbett
- Department of Psychiatry & Behavioral Sciences, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - M D Lerner
- Department of Psychology, Stony Brook University, Stony Brook, New York, USA
- AJ Drexel Autism Institute, Drexel University, Philadelphia, Pennsylvania, USA
| | - K Wofford
- Department of Psychology, University of South Florida, Tampa, Florida, USA
| | - S W White
- Center for Youth Development and Intervention, Department of Psychology, The University of Alabama, Tuscaloosa, Alabama, USA
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White SW. ANZJOG in 2024. Aust N Z J Obstet Gynaecol 2024; 64:3-4. [PMID: 38311872 DOI: 10.1111/ajo.13801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Accepted: 01/22/2024] [Indexed: 02/06/2024]
Affiliation(s)
- Scott W White
- The Western Australian Centre for Health Research for Women and Babies, The University of Western Australia, Perth, Western Australia, Australia
- Division of Obstetrics and Gynaecology, The University of Western Australia, Perth, Western Australia, Australia
- Maternal Fetal Medicine Service, King Edward Memorial Hospital, Perth, Western Australia, Australia
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Warton EM, Dickinson JE, White SW, Leung Y, Berry B. Complete hydatidiform mole with concurrent fetus: Two cases of live, term birth coupled with spontaneous resolution of molar tissue. Australas J Ultrasound Med 2024; 27:65-70. [PMID: 38434545 PMCID: PMC10902830 DOI: 10.1002/ajum.12366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2024] Open
Abstract
Pregnancies with a complete hydatidiform mole and co-existing fetus (CMCF) are rare, but increasingly common due to the rising prevalence of assisted reproductive technology. They are frequently associated with adverse obstetric outcomes, providing women with the challenge of pregnancy termination or continuing the pregnancy at the risk of maternal-fetal morbidity and fetal mortality. This report demonstrates two cases of CMCF pregnancy with excellent maternal-fetal outcomes, including spontaneous resolution of the molar tissue antenatally. It is helpful in counselling women who are diagnosed with this rare and frequently morbid condition in considering how to proceed with their pregnancy.
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Affiliation(s)
- Emily M. Warton
- Department of Obstetrics and GynecologyKing Edward Memorial HospitalPerthWestern AustraliaAustralia
| | - Jan E. Dickinson
- Division of Obstetrics and GynecologyThe University of Western AustraliaPerthWestern AustraliaAustralia
- Maternal Fetal Medicine Service, King Edward Memorial HospitalPerthWestern AustraliaAustralia
| | - Scott W. White
- Division of Obstetrics and GynecologyThe University of Western AustraliaPerthWestern AustraliaAustralia
- Maternal Fetal Medicine Service, King Edward Memorial HospitalPerthWestern AustraliaAustralia
| | - Yee Leung
- Division of Obstetrics and GynecologyThe University of Western AustraliaPerthWestern AustraliaAustralia
- Department of Gynecological OncologyKing Edward Memorial HospitalPerthWestern AustraliaAustralia
| | - Bligh Berry
- Department of Paediatric and Perinatal PathologyPathWest, Perth Children's HospitalPerthWestern AustraliaAustralia
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White SW. Final thoughts from ANZJOG in 2023. Aust N Z J Obstet Gynaecol 2023; 63:733-734. [PMID: 38111287 DOI: 10.1111/ajo.13785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 12/06/2023] [Indexed: 12/20/2023]
Affiliation(s)
- Scott W White
- The Western Australian Centre for Health Research for Women and Babies, The University of Western Australia, Perth, Western Australia, Australia
- Division of Obstetrics and Gynaecology, The University of Western Australia, Perth, Western Australia, Australia
- Maternal Fetal Medicine Service, King Edward Memorial Hospital, Perth, Western Australia, Australia
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Ayonrinde OT, White SW, Mehta S, Dunn ML, Bradley C, Fisher P, Ayonrinde OA. Response to Letter to the Editor 'Gestational cannabis use - Implications for neonatal size and maturity?'. Aust N Z J Obstet Gynaecol 2023; 63:831-832. [PMID: 38140751 DOI: 10.1111/ajo.13742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 07/13/2023] [Indexed: 12/24/2023]
Affiliation(s)
- Oyekoya T Ayonrinde
- Department of Gastroenterology and Hepatology, Fiona Stanley Hospital, Murdoch, Western Australia, Australia
- Medical School, The University of Western Australia, Nedlands, Western Australia, Australia
- Faculty of Health Sciences, Curtin University, Bentley, Western Australia, Australia
| | - Scott W White
- Medical School, The University of Western Australia, Nedlands, Western Australia, Australia
- Maternal Fetal Medicine Service, King Edward Memorial Hospital, Subiaco, Western Australia, Australia
| | - Shailender Mehta
- Faculty of Health Sciences, Curtin University, Bentley, Western Australia, Australia
- Department of Neonatology, Fiona Stanley Hospital, Murdoch, Western Australia, Australia
| | - Mikaela L Dunn
- Fiona Stanley Hospital, Murdoch, Western Australia, Australia
| | - Clare Bradley
- Fiona Stanley Hospital, Murdoch, Western Australia, Australia
| | - Petrovia Fisher
- Department of Obstetrics and Gynaecology, Fiona Stanley Hospital, Murdoch, Western Australia, Australia
| | - Oyedeji A Ayonrinde
- Department of Psychiatry, Queen's University, Kingston, Ontario, Canada
- Providence Care Hospital, Kingston, Ontario, Canada
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Ahmed MA, Bailey HD, Pereira G, White SW, Hare MJ, Wong K, Marriott R, Shepherd CC. Overweight/obesity and other predictors of gestational diabetes among Aboriginal and non-Aboriginal women in Western Australia. Prev Med Rep 2023; 36:102444. [PMID: 37840590 PMCID: PMC10568432 DOI: 10.1016/j.pmedr.2023.102444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 09/21/2023] [Accepted: 09/22/2023] [Indexed: 10/17/2023] Open
Abstract
This population-based study investigated the association of BMI and other predictors with gestational diabetes mellitus (GDM) among Australian Aboriginal and non-Aboriginal mothers. We conducted a state-wide retrospective cohort study that included all singleton births in Western Australia (n = 134,552) between 2012 and 2015 using population health datasets linked by the Western Australian Data Linkage Branch. Associations between GDM and its predictors were estimated as adjusted relative risks (aRRs) from multivariable generalised linear models. Adjusted ratio of relative risks (aRRRs) compared RRs in Aboriginal and non-Aboriginal mothers. Adjusted population attributable fractions estimated the contribution of overweight/obesity to GDM burden, and adjusted predicted probabilities for GDM were plotted against BMI levels. The following predictors had stronger associations with GDM in Aboriginal, compared to non-Aboriginal, mothers: maternal obesity (aRR [95% CI] 3.16 [2.54-3.93]; aRRR 1.57 [1.26-1.94]), previous LGA (aRR 1.70 [1.37-2.12]; aRRR 1.41 [1.13-1.76]) and previous macrosomia (birthweight ≥ 4 kg) (aRR 1.55 [1.24-1.94]; aRRR 1.53 [1.22-1.91]). 46.1% (95% CI: 36.6-54.1) of GDM cases in Aboriginal women (23.3% in non-Aboriginal mothers, 95% CI: 21.6-25.1) were attributed to overweight/obesity. Compared to non-Aboriginal mothers, adjusted GDM probabilities were higher at all BMI levels and showed greater increase with BMI. Overweight/obesity is a key driver of GDM among Aboriginal women. Association between BMI and GDM is stronger in Aboriginal, compared to non-Aboriginal, women especially at higher BMI.
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Affiliation(s)
- Marwan Awad Ahmed
- Telethon Kids Institute, University of Western Australia, Perth, Australia
- School of Population and Global Health, The University of Western Australia, Perth, Australia
| | - Helen D. Bailey
- Telethon Kids Institute, University of Western Australia, Perth, Australia
- Curtin Medical School, Faculty of Health Sciences, Curtin University, Perth, Australia
| | - Gavin Pereira
- Curtin School of Population Health, Curtin University, Perth, Western Australia, Australia
- Centre for Fertility and Health (CeFH), Norwegian Institute of Public Health, Oslo, Norway
- enAble Institute, Curtin University, Perth, Western Australia, Australia
| | - Scott W. White
- Division of Obstetrics and Gynaecology, The University of Western Australia, Perth, WA, Australia
- Maternal Fetal Medicine Service, King Edward Memorial Hospital, Subiaco, WA, Australia
| | - Matthew J.L. Hare
- Wellbeing and Chronic Preventable Diseases Division, Menzies School of Health Research, Charles Darwin University, Darwin, Northern Territory, Australia
- Department of Endocrinology, Royal Darwin Hospital, Darwin, Northern Territory, Australia
| | - Kingsley Wong
- Telethon Kids Institute, University of Western Australia, Perth, Australia
- Curtin School of Population Health, Curtin University, Perth, Western Australia, Australia
| | - Rhonda Marriott
- Ngangk Yira Institute for Change, Murdoch University, Perth, WA, Australia
| | - Carrington C.J. Shepherd
- Telethon Kids Institute, University of Western Australia, Perth, Australia
- Curtin Medical School, Faculty of Health Sciences, Curtin University, Perth, Australia
- Ngangk Yira Institute for Change, Murdoch University, Perth, WA, Australia
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Ahmed MA, Bailey HD, Pereira G, White SW, Wong K, McNamara BJ, Rheeder P, Marriott R, Shepherd CCJ. The impact of diabetes during pregnancy on neonatal outcomes among the Aboriginal population in Western Australia: a whole-population study. Int J Epidemiol 2023; 52:1400-1413. [PMID: 37263617 DOI: 10.1093/ije/dyad072] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 05/13/2023] [Indexed: 06/03/2023] Open
Abstract
BACKGROUND Aboriginal and Torres Strait Islander (hereafter Aboriginal) women have a high prevalence of diabetes in pregnancy (DIP), which includes pre-gestational diabetes mellitus (PGDM) and gestational diabetes mellitus (GDM). We aimed to characterize the impact of DIP in babies born to Aboriginal mothers. METHODS A retrospective cohort study, using routinely collected linked health data that included all singleton births (N = 510 761) in Western Australia between 1998 and 2015. Stratified by Aboriginal status, generalized linear mixed models quantified the impact of DIP on neonatal outcomes, estimating relative risks (RRs) with 95% CIs. Ratio of RRs (RRRs) examined whether RRs differed between Aboriginal and non-Aboriginal populations. RESULTS Exposure to DIP increased the risk of adverse outcomes to a greater extent in Aboriginal babies. PGDM heightened the risk of large for gestational age (LGA) (RR: 4.10, 95% CI: 3.56-4.72; RRR: 1.25, 95% CI: 1.09-1.43), macrosomia (RR: 2.03, 95% CI: 1.67-2.48; RRR: 1.39, 95% CI: 1.14-1.69), shoulder dystocia (RR: 4.51, 95% CI: 3.14-6.49; RRR: 2.19, 95% CI: 1.44-3.33) and major congenital anomalies (RR: 2.14, 95% CI: 1.68-2.74; RRR: 1.62, 95% CI: 1.24-2.10). GDM increased the risk of LGA (RR: 2.63, 95% CI: 2.36-2.94; RRR: 2.00, 95% CI: 1.80-2.22), macrosomia (RR: 1.95, 95% CI: 1.72-2.21; RRR: 2.27, 95% CI: 2.01-2.56) and shoulder dystocia (RR: 2.78, 95% CI: 2.12-3.63; RRR: 2.11, 95% CI: 1.61-2.77). Birthweight mediated about half of the DIP effect on shoulder dystocia only in the Aboriginal babies. CONCLUSIONS DIP differentially increased the risks of fetal overgrowth, shoulder dystocia and congenital anomalies in Aboriginal babies. Improving care for Aboriginal women with diabetes and further research on preventing shoulder dystocia among these women can reduce the disparities.
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Affiliation(s)
- Marwan Awad Ahmed
- Telethon Kids Institute, University of Western Australia, Perth, Western Australia, Australia
- School of Population and Global Health, The University of Western Australia, Perth, Western Australia, Australia
| | - Helen D Bailey
- Telethon Kids Institute, University of Western Australia, Perth, Western Australia, Australia
- Curtin Medical School, Faculty of Health Sciences, Curtin University, Perth, Western Australia, Australia
| | - Gavin Pereira
- Curtin School of Population Health, Curtin University, Perth, Western Australia, Australia
- Centre for Fertility and Health (CeFH), Norwegian Institute of Public Health, Oslo, Norway
- enAble Institute, Curtin University, Perth, Western Australia, Australia
| | - Scott W White
- Division of Obstetrics and Gynaecology, The University of Western Australia, Perth, Western Australia, Australia
- Maternal Fetal Medicine Service, King Edward Memorial Hospital, Subiaco, Western Australia, Australia
| | - Kingsley Wong
- Telethon Kids Institute, University of Western Australia, Perth, Western Australia, Australia
- Curtin School of Population Health, Curtin University, Perth, Western Australia, Australia
| | - Bridgette J McNamara
- Melbourne School of Population and Global Health, The University of Melbourne, Parkville, Australia
| | - Paul Rheeder
- Department of Internal Medicine, Steve Biko Academic Hospital, University of Pretoria, Pretoria, South Africa
| | - Rhonda Marriott
- Ngangk Yira Research Centre, Murdoch University, Perth, Western Australia, Australia
| | - Carrington C J Shepherd
- Telethon Kids Institute, University of Western Australia, Perth, Western Australia, Australia
- Curtin Medical School, Faculty of Health Sciences, Curtin University, Perth, Western Australia, Australia
- Ngangk Yira Research Centre, Murdoch University, Perth, Western Australia, Australia
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White SW. Intrahepatic cholestasis of pregnancy: Contemporary management. Aust N Z J Obstet Gynaecol 2023; 63:623-624. [PMID: 37775914 DOI: 10.1111/ajo.13753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 09/09/2023] [Indexed: 10/01/2023]
Affiliation(s)
- Scott W White
- The Western Australian Centre for Health Research for Women and Babies, The University of Western Australia, Perth, Western Australia, Australia
- Division of Obstetrics and Gynaecology, The University of Western Australia, Perth, Western Australia, Australia
- Maternal Fetal Medicine Service, King Edward Memorial Hospital, Perth, Western Australia, Australia
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Affiliation(s)
- Scott W White
- The Western Australian Centre for Health Research for Women and Babies, The University of Western Australia, Perth, Western Australia, Australia
- Division of Obstetrics and Gynaecology, The University of Western Australia, Perth, Western Australia, Australia
- Maternal Fetal Medicine Service, King Edward Memorial Hospital, Perth, Western Australia, Australia
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Pollock D, Bailey HD, Munn Z, Hasanoff S, Valenzuela C, Stern C, Price C, Marriott R, Gliddon J, Lewis C, Michie C, Bowie M, Penny M, Reibel T, Warland J, Farrant B, White SW, Shepherd CCJ. First Nations populations' perceptions, knowledge, attitudes, beliefs, and myths about prevention and bereavement in stillbirth: a mixed methods systematic review protocol. JBI Evid Synth 2023; 21:2142-2150. [PMID: 37609717 DOI: 10.11124/jbies-23-00071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
OBJECTIVE The objective of this review is to investigate First Nations populations' perceptions, knowledge, attitudes, beliefs, and myths about stillbirth. INTRODUCTION First Nations populations experience disproportionate rates of stillbirth compared with non-First Nations populations. There has been a surge of interventions aimed at reducing stillbirth and providing better bereavement care, but these are not necessarily appropriate for First Nations populations. As a first step toward developing appropriate interventions for these populations, this review will examine current perceptions, knowledge, attitudes, beliefs, and myths about stillbirth held by First Nations people from the United States, Canada, Aotearoa/New Zealand, and Australia. INCLUSION CRITERIA The review will consider studies that include individuals of any age (bereaved or non-bereaved) who identify as belonging to First Nations populations. Eligible studies will include the perceptions, knowledge, attitudes, beliefs, and myths about stillbirth among First Nations populations. METHODS This review will follow the JBI methodology for convergent mixed methods systematic reviews. The review is supported by an advisory panel of Aboriginal elders, lived-experience stillbirth researchers, Aboriginal researchers, and clinicians. PubMed, MEDLINE (Ovid), CINAHL (EBSCOhost), Embase (Ovid), Emcare (Ovid), PsycINFO (EBSCOhost), Indigenous Health InfoNet, Trove, Informit, and ProQuest Dissertations and Theses will be searched for relevant information. Titles and abstracts of potential studies will be screened and examined for eligibility. After critical appraisal, quantitative and qualitative data will be extracted from included studies, with the former "qualitized" and the data undergoing a convergent integrated approach. REVIEW REGISTRATION PROSPERO CRD42023379627.
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Affiliation(s)
- Danielle Pollock
- JBI, School of Public Health, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, SA, Australia
| | - Helen D Bailey
- Curtin Medical School, Faculty of Health Sciences, Curtin University, Perth, WA, Australia
- Telethon Kids Institute, The University of Western Australia, Perth, WA, Australia
| | - Zachary Munn
- JBI, School of Public Health, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, SA, Australia
| | - Sabira Hasanoff
- JBI, School of Public Health, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, SA, Australia
| | - Chelsea Valenzuela
- JBI, School of Public Health, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, SA, Australia
| | - Cindy Stern
- JBI, School of Public Health, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, SA, Australia
| | - Carrie Price
- Albert S. Cook Library, Towson University, Towson, MD, USA
| | - Rhonda Marriott
- Ngangk Yira Institute for Change, Murdoch University, Perth, WA, Australia
| | - Janinne Gliddon
- Ngangk Yira Institute for Change, Murdoch University, Perth, WA, Australia
| | - Carolyn Lewis
- Curtin Medical School, Faculty of Health Sciences, Curtin University, Perth, WA, Australia
| | - Carol Michie
- Telethon Kids Institute, The University of Western Australia, Perth, WA, Australia
| | - Muriel Bowie
- Telethon Kids Institute, The University of Western Australia, Perth, WA, Australia
| | - Millie Penny
- Telethon Kids Institute, The University of Western Australia, Perth, WA, Australia
| | - Tracy Reibel
- Ngangk Yira Institute for Change, Murdoch University, Perth, WA, Australia
| | - Jane Warland
- Curtin School of Nursing, Faculty of Health Sciences, Curtin University, Perth, WA, Australia
| | - Brad Farrant
- Telethon Kids Institute, The University of Western Australia, Perth, WA, Australia
| | - Scott W White
- Division of Obstetrics and Gynaecology, The University of Western Australia, Perth, WA, Australia
- Maternal Fetal Medicine Service, King Edward Memorial Hospital, Perth, WA, Australia
| | - Carrington C J Shepherd
- Curtin Medical School, Faculty of Health Sciences, Curtin University, Perth, WA, Australia
- Telethon Kids Institute, The University of Western Australia, Perth, WA, Australia
- Ngangk Yira Institute for Change, Murdoch University, Perth, WA, Australia
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Bailey HD, Adane AA, White SW, Farrant BM, Shepherd CCJ. Severe maternal morbidity following stillbirth in Western Australia 2000-2015: a population-based study. Arch Gynecol Obstet 2023; 308:1175-1187. [PMID: 36109376 PMCID: PMC10435652 DOI: 10.1007/s00404-022-06782-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 09/01/2022] [Indexed: 11/02/2022]
Abstract
PURPOSE There is scant literature about the management of stillbirth and the subsequent risk of severe maternal morbidity (SMM). We aimed to assess the risk of SMM associated with stillbirths compared with live births and whether this differed by the presence of maternal comorbidities. METHODS In this retrospective cohort study, we used a population-based dataset of all stillbirths and live births ≥ 20 weeks' gestation in Western Australia between 2000 and 2015. SMM was identified using a published Australian composite for use with routinely collected hospital morbidity data. Maternal comorbidities were identified in the Hospital Morbidity Data Collection or the Midwives Notification System using a modified Australian chronic disease composite. Multivariable Poisson regression was used to estimate relative risks (RRs) and 95% confidence intervals (CIs) for factors associated with SMM in analyses stratified by the presence of maternal comorbidities. Singleton and multiple pregnancies were examined separately. RESULTS This study included 458,639 singleton births (2319 stillbirths and 456,320 live births). The adjusted RRs for SMM among stillbirths were 2.30 (95% CI 1.77, 3.00) for those without comorbidities and 4.80 (95% CI 4.11, 5.59) (Interaction P value < 0.0001) for those with comorbidities compared to live births without and with comorbidities, respectively. CONCLUSION In Western Australia between 2000 and 2015, mothers of stillbirths both with and without any maternal comorbidities had an increased risk of SMM compared with live births. Further investigation into why women who have had a stillbirth without any existing conditions or pregnancy complications develop SMM is warranted.
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Affiliation(s)
- Helen D Bailey
- Curtin Medical School, Faculty of Health Sciences, Curtin University, Perth, GPO Box U1987, 6845, Australia.
- Telethon Kids Institute, The University of Western Australia, West Perth 6872, P.O. Box 855, Nedlands, WA, Australia.
| | - Akilew A Adane
- Telethon Kids Institute, The University of Western Australia, West Perth 6872, P.O. Box 855, Nedlands, WA, Australia
- Ngangk Yira Institute for Change, Murdoch University, Murdoch, WA, Australia
| | - Scott W White
- Division of Obstetrics and Gynaecology, The University of Western Australia, Nedlands, WA, Australia
- Maternal Fetal Medicine Service, King Edward Memorial Hospital, Subiaco, WA, Australia
| | - Brad M Farrant
- Telethon Kids Institute, The University of Western Australia, West Perth 6872, P.O. Box 855, Nedlands, WA, Australia
| | - Carrington C J Shepherd
- Curtin Medical School, Faculty of Health Sciences, Curtin University, Perth, GPO Box U1987, 6845, Australia
- Telethon Kids Institute, The University of Western Australia, West Perth 6872, P.O. Box 855, Nedlands, WA, Australia
- Ngangk Yira Institute for Change, Murdoch University, Murdoch, WA, Australia
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Yadav A, Beilin LJ, Huang RC, Newnham JP, White SW, Mori TA. Fetal Growth Trajectories and Measures of Insulin Resistance in Young Adults. J Clin Endocrinol Metab 2023; 108:e861-e870. [PMID: 37246587 PMCID: PMC10656704 DOI: 10.1210/clinem/dgad292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 05/05/2023] [Accepted: 05/26/2023] [Indexed: 05/30/2023]
Abstract
CONTEXT Events during gestation greatly influence the risk of cardiometabolic diseases including diabetes in offspring during later life. OBJECTIVE This study aimed to investigate relationships between serial ultrasound-derived fetal growth trajectories and markers of insulin resistance in young adults in the Raine Study, an Australian pregnancy cohort. METHODS Linear mixed modeling examined the relationship between fetal growth trajectory groups, constructed using serial ultrasound-based abdominal circumference (AC), femur length (FL), and head circumference (HC) from 1333 mother-fetal pairs, and offspring Homeostatic Model Assessment of Insulin Resistance (HOMA-IR), as a marker of diabetes risk, at 20 (n = 414), 22 (n = 385), and 27 (n = 431) years. Analyses were adjusted for age, sex, ethnicity, socioeconomic status, adult lifestyle factors, and maternal factors during pregnancy. RESULTS The study identified 7 AC, 5 FL, and 5 HC growth trajectory groups. Compared to the average-stable (reference) group, a low-falling AC growth trajectory (26%; P = .005) and 2 low HC growth trajectories (20%; P = .006% and 8%; P = .021) were associated with higher adult HOMA-IR. Trajectories representing a high-stable FL and a rising HC were associated with 12% (P = .002) and 9% (P = .021) lower adult HOMA-IR, respectively, compared to the reference group. CONCLUSION Restricted fetal HC and AC from early pregnancy are associated with higher relative insulin resistance in the offspring during adulthood. These data strengthen our understanding of the importance of the intrauterine environment and its effect on the risk of predisposition to adult diabetes and related metabolic disorders.
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Affiliation(s)
- Ashish Yadav
- UWA Medical School, University of Western Australia, Perth, 6009 WA, Australia
| | - Lawrence J Beilin
- UWA Medical School, University of Western Australia, Perth, 6009 WA, Australia
| | - Rae-Chi Huang
- Nutrition Health Innovation Research Institute, Edith Cowan University, Perth, 6027 WA, Australia
| | - John P Newnham
- Division of Obstetrics and Gynaecology, University of Western Australia, Perth, 6009 WA, Australia
| | - Scott W White
- Division of Obstetrics and Gynaecology, University of Western Australia, Perth, 6009 WA, Australia
| | - Trevor A Mori
- UWA Medical School, University of Western Australia, Perth, 6009 WA, Australia
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15
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Dunn ML, Bradley C, Ayonrinde OA, Van Rooyen DM, Tait RJ, White SW, Fisher P, Sunanda G, Mehta S, Ayonrinde OT. The prevalence and significance of gestational cannabis use at an Australian tertiary hospital. Aust N Z J Obstet Gynaecol 2023; 63:6-12. [PMID: 35851950 DOI: 10.1111/ajo.13589] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Accepted: 06/28/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Cannabis is one of the most common non-prescribed psychoactive substances used in pregnancy. The prevalence of gestational cannabis use is increasing. AIM The aim was to examine the prevalence of gestational cannabis use and associated pregnancy and neonate outcomes. MATERIALS AND METHODS A retrospective observational study involving pregnant women delivering in 2019 was conducted at a tertiary hospital in Perth, Western Australia. Gestational cannabis and other substance use records were based on maternal self-report. Pregnancy outcomes included neonatal gestational age, birthweight, birth length, head circumference, resuscitation measures, special care nursery admission, 5-min Apgar score and initial neonatal feeding method. RESULTS Among 3104 pregnant women (mean age: 31 years), gestational cannabis use was reported by 1.6% (n = 50). Cannabis users were younger, more likely to use other substances and experience mental illness or domestic violence compared with non-users. Neonates born to cannabis users had a lower mean gestational age, birthweight and birth length compared to those born to non-cannabis users. Gestational cannabis use (odds ratio (OR) 3.3, 95% confidence interval (CI) 1.6-6.7) and tobacco smoking (OR 2.2, 95% CI 1.5-3.6) were associated with increased odds of a low-birthweight neonate. Combined cannabis and tobacco use during pregnancy further increased the likelihood of low birthweight (LBW, adjusted OR 3.9, 95% CI 1.6-9.3). Multivariate logistic regression analysis adjusted for maternal sociodemographical characteristics, mental illness, alcohol, tobacco and other substance use demonstrated gestational cannabis use to be independently associated with LBW (OR 2.3, 95% CI 1.1-5.2). CONCLUSION Gestational cannabis use was independently associated with low birthweight, synergistically affected by tobacco smoking.
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Affiliation(s)
- Mikaela L Dunn
- Medical School, The University of Western Australia, Perth, Western Australia, Australia
| | - Clare Bradley
- Department of Gastroenterology and Hepatology, Fiona Stanley Hospital, Murdoch, Western Australia, Australia
| | - Oyedeji A Ayonrinde
- Department of Psychiatry, Queen's University, Kingston, Ontario, Canada.,Providence Care Hospital, Kingston, Ontario, Canada
| | - Derrick M Van Rooyen
- Department of Gastroenterology and Hepatology, Fiona Stanley Hospital, Murdoch, Western Australia, Australia
| | - Robert J Tait
- National Drug Research Institute, Faculty of Health Sciences, Curtin University, Bentley, Western Australia, Australia
| | - Scott W White
- Medical School, The University of Western Australia, Perth, Western Australia, Australia.,Department of Obstetrics and Gynaecology, Fiona Stanley Hospital, Murdoch, Western Australia, Australia.,Maternal Fetal Medicine Service, King Edward Memorial Hospital, Subiaco, Western Australia, Australia
| | - Petrovia Fisher
- Department of Obstetrics and Gynaecology, Fiona Stanley Hospital, Murdoch, Western Australia, Australia
| | - Gargeswari Sunanda
- Department of Obstetrics and Gynaecology, Fiona Stanley Hospital, Murdoch, Western Australia, Australia.,School of Medicine, University of Notre Dame, Fremantle, Western Australia, Australia
| | - Shailender Mehta
- School of Medicine, University of Notre Dame, Fremantle, Western Australia, Australia.,Department of Neonatology, Fiona Stanley Hospital, Murdoch, Western Australia, Australia.,Faculty of Health Sciences, Curtin University, Bentley, Western Australia, Australia
| | - Oyekoya T Ayonrinde
- Medical School, The University of Western Australia, Perth, Western Australia, Australia.,Department of Gastroenterology and Hepatology, Fiona Stanley Hospital, Murdoch, Western Australia, Australia.,Faculty of Health Sciences, Curtin University, Bentley, Western Australia, Australia
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16
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Berman YE, Newnham JP, White SW, Brown K, Doherty DA. The Western Australian preterm birth prevention initiative: a whole of state singleton pregnancy cohort study showing the need to embrace alternative models of care for Aboriginal women. BMC Pregnancy Childbirth 2023; 23:7. [PMID: 36600220 PMCID: PMC9811788 DOI: 10.1186/s12884-022-05222-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Accepted: 11/15/2022] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Preterm birth (PTB) is the greatest cause of mortality and morbidity in children up to five years of age globally. The Western Australian (WA) PTB Prevention Initiative, the world's first whole-of-population whole-of-state program aimed at PTB prevention, was implemented across WA in 2014. METHODS We conducted a prospective population-based cohort study using pregnancy data for singleton births in WA from 2009 to 2019. Logistic regression using the last full year before the Initiative (2013) as the reference, and run charts were used to examine changes in PTB rates compared to pre-Initiative levels, by gestational age group, hospital type, low and high risk of PTB in mid-pregnancy, and onset of labour (spontaneous/medically initiated). Analyses were stratified by Aboriginal and non-Aboriginal maternal ethnicity. RESULTS Amongst non-Aboriginal women, there was initially a reduction in the PTB rate across the state, and in recent years it returned to pre-Initiative levels. Amongst Aboriginal women there was a small, non- significant reduction in the state-wide PTB rate in the first three years of the Initiative, followed by a rise in recent years. For non-Aboriginal women, the reduction in the rate of PTB at the tertiary centre was sustained and improved further for women of all risk levels and onsets of labour. This reduction was not observed for Aboriginal women giving birth at the tertiary centre, amongst whom there was an increase in the PTB rate overall and in all subgroups, with the exception of medically initiated PTB. Amongst Aboriginal women the PTB rate has also increased across the state. At non-tertiary hospitals there was a large increase in PTB amongst both Aboriginal and non-Aboriginal women, largely driven by medically initiated late PTB. Maternal risk factors cannot account for this increase. CONCLUSIONS The reduction in PTB rates amongst non-Aboriginal women at the state's tertiary hospital demonstrates that with the right strategies, PTB can be reduced. A sustained collaborative model is required to realise this success in non-tertiary hospitals. The series of interventions was of limited use in Aboriginal women, and future efforts will need to be directed at strategies more likely to be successful, such as midwifery continuity of care models, with Aboriginal representation in the healthcare workforce.
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Affiliation(s)
- Ye’elah E. Berman
- grid.1012.20000 0004 1936 7910Division of Obstetrics and Gynaecology, University of Western Australia, King Edward Memorial Hospital, 374 Bagot Road, Subiaco, Perth, WA 6008 Australia
| | - John P. Newnham
- grid.1012.20000 0004 1936 7910Division of Obstetrics and Gynaecology, University of Western Australia, King Edward Memorial Hospital, 374 Bagot Road, Subiaco, Perth, WA 6008 Australia
| | - Scott W. White
- grid.1012.20000 0004 1936 7910Division of Obstetrics and Gynaecology, University of Western Australia, King Edward Memorial Hospital, 374 Bagot Road, Subiaco, Perth, WA 6008 Australia
| | - Kiarna Brown
- grid.240634.70000 0000 8966 2764Department of Obstetrics and Gynaecology, Royal Darwin Hospital, Rocklands Drive, Tiwi, Darwin, NT 0811 Australia ,grid.271089.50000 0000 8523 7955Menzies School of Health Research, John Matthews Building, Corner of Nightingale and Paracelsus Road, Tiwi, Darwin, NT 0810 Australia
| | - Dorota A. Doherty
- grid.1012.20000 0004 1936 7910Division of Obstetrics and Gynaecology, University of Western Australia, King Edward Memorial Hospital, 374 Bagot Road, Subiaco, Perth, WA 6008 Australia
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17
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Bailey HD, Gray C, Adane AA, Strobel NA, White SW, Marriott R, Tessema GA, Shepherd CCJ, Sharp M. Early mortality among aboriginal and non-aboriginal women who had a preterm birth in Western Australia: A population-based cohort study. Paediatr Perinat Epidemiol 2023; 37:31-44. [PMID: 36331146 PMCID: PMC10946802 DOI: 10.1111/ppe.12929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 09/19/2022] [Accepted: 09/21/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND Having a preterm (<37 weeks' gestation) birth may increase a woman's risk of early mortality. Aboriginal and Torres Strait Islander (hereafter Aboriginal) women have higher preterm birth and mortality rates compared with other Australian women. OBJECTIVES We investigated whether a history of having a preterm birth was associated with early mortality in women and whether these associations differed by Aboriginal status. METHODS This retrospective cohort study used population-based perinatal records of women who had a singleton birth between 1980 and 2015 in Western Australia linked to Death Registry data until June 2018. The primary and secondary outcomes were all-cause and cause-specific mortality respectively. After stratification by Aboriginal status, rate differences were calculated, and Cox proportional hazard regression was used to estimate adjusted hazard ratios (HR) and 95% confidence intervals (CI) for all-cause and cause-specific mortality. RESULTS There were 20,244 Aboriginal mothers (1349 deaths) and 457,357 non-Aboriginal mothers (7646 deaths) with 8.6 million person-years of follow-up. The all-cause mortality rates for Aboriginal mothers who had preterm births and term births were 529.5 and 344.0 (rate difference 185.5, 95% CI 135.5, 238.5) per 100,000 person-years respectively. Among non-Aboriginal mothers, the corresponding figures were 125.5 and 88.6 (rate difference 37.0, 95% CI 29.4, 44.9) per 100,000 person-years. The HR for all-cause mortality for Aboriginal and non-Aboriginal mothers associated with preterm birth were 1.48 (95% CI 1.32, 1.66) and 1.35 (95% CI 1.26, 1.44), respectively, compared with term birth. Compared with mothers who had term births, mothers of preterm births had higher relative risks of mortality from diabetes, cardiovascular, digestive and external causes. CONCLUSIONS Both Aboriginal and non-Aboriginal women who had a preterm birth had a moderately increased risk of mortality up to 38 years after the birth, reinforcing the importance of primary prevention and ongoing screening.
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Affiliation(s)
- Helen D. Bailey
- Curtin Medical School, Faculty of Health SciencesCurtin UniversityPerthWestern AustraliaAustralia
- Telethon Kids InstituteThe University of Western AustraliaNedlandsWestern AustraliaAustralia
| | - Caitlin Gray
- Telethon Kids InstituteThe University of Western AustraliaNedlandsWestern AustraliaAustralia
| | - Akilew A. Adane
- Telethon Kids InstituteThe University of Western AustraliaNedlandsWestern AustraliaAustralia
- Ngangk Yira Research Institute for ChangeMurdoch UniversityMurdochWestern AustraliaAustralia
| | - Natalie A. Strobel
- Kurongkurl KatitjinEdith Cowan UniversityMount LawleyWestern AustraliaAustralia
| | - Scott W. White
- Division of Obstetrics and GynaecologyThe University of Western AustraliaNedlandsWestern AustraliaAustralia
- Maternal Fetal Medicine ServiceKing Edward Memorial HospitalSubiacoWestern AustraliaAustralia
| | - Rhonda Marriott
- Ngangk Yira Research Institute for ChangeMurdoch UniversityMurdochWestern AustraliaAustralia
| | - Gizachew A. Tessema
- Curtin School of Population Health, Faculty of Health SciencesCurtin UniversityPerthWestern AustraliaAustralia
| | - Carrington C. J. Shepherd
- Curtin Medical School, Faculty of Health SciencesCurtin UniversityPerthWestern AustraliaAustralia
- Telethon Kids InstituteThe University of Western AustraliaNedlandsWestern AustraliaAustralia
- Ngangk Yira Research Institute for ChangeMurdoch UniversityMurdochWestern AustraliaAustralia
| | - Mary Sharp
- Telethon Kids InstituteThe University of Western AustraliaNedlandsWestern AustraliaAustralia
- Department of NeonatologyKing Edward Memorial HospitalSubiacoWestern AustraliaAustralia
- Centre for Neonatal Research and EducationThe University of Western AustraliaNedlandsWestern AustraliaAustralia
- Department of NeonatologyPerth Children's HospitalNedlandsWestern AustraliaAustralia
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18
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White SW. What is normal birth, and why does it matter? Aust N Z J Obstet Gynaecol 2022; 62:463-465. [PMID: 36004424 DOI: 10.1111/ajo.13582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Scott W White
- Division of Obstetrics and Gynaecology, The University of Western Australia.,Department of Maternal Fetal Medicine, King Edward Memorial Hospital, Perth, Western Australia, Australia
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19
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Ninkov T, Nathan EA, Belcher CN, White SW, Newnham JP. The clinical utility of ongoing sonographic cervix length surveillance in pregnancies prescribed vaginal progesterone therapy. Aust N Z J Obstet Gynaecol 2022; 63:198-203. [PMID: 35897131 DOI: 10.1111/ajo.13592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 07/03/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Vaginal progesterone therapy significantly reduces preterm birth (PTB) rates in those high-risk pregnancies with a sonographic short cervix (≤25 mm) and/or a history of spontaneous PTB. Cervical length (CL) is routinely measured at the midtrimester morphology scan; however, CL surveillance thereafter is not currently recommended. Progesterone's precise mechanism of action remains unknown, though if it indeed influences CL, shortening after treatment initiation could indicate therapeutic failure and risk of PTB. AIMS The aim was to explore the utility of serial transvaginal ultrasound (TVU) measurement of CL at 16, 19 and 22 weeks for predicting PTB in high-risk pregnancies prescribed progesterone therapy. METHODS A retrospective cohort study was conducted involving women who attended the King Edward Memorial Hospital PTB Prevention Clinic from 2015 to 2019 and were prescribed progesterone therapy. CL was measured at 16, 19 and 22 weeks by TVU. CL change across three time points was assessed using linear mixed models; then relationships between CL change between 16-19 and 19-22 weeks and PTB were analysed using logistic regression models. RESULTS Term birth was most likely when CL did not decrease across both time periods. The addition of 16-19 week decrease in CL to a model, including CL at 19 weeks alone, for predicting PTB increased sensitivity from 43.2 to 56.3%, specificity from 73.2 to 77.4%, and overall accuracy from 61.7 to 70.2%. CONCLUSION For high-risk women prescribed vaginal progesterone therapy, serial measurement of the cervix at 16 and 19 weeks improves clinical ability to predict PTB from current recommendations of 19-week measurement alone.
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Affiliation(s)
| | - Elizabeth A Nathan
- Women and Infants Research Foundation, King Edward Memorial Hospital, Perth, Western Australia, Australia
| | - Cathryn N Belcher
- Maternal-Fetal Medicine Service, King Edward Memorial Hospital, Perth, WA, Australia
| | - Scott W White
- Division of Obstetrics and Gynaecology, School of Medicine, The University of Western Australia, Perth, Western Australia, Australia
- Women and Infants Research Foundation, King Edward Memorial Hospital, Perth, Western Australia, Australia
- Maternal-Fetal Medicine Service, King Edward Memorial Hospital, Perth, WA, Australia
| | - John P Newnham
- Division of Obstetrics and Gynaecology, School of Medicine, The University of Western Australia, Perth, Western Australia, Australia
- Women and Infants Research Foundation, King Edward Memorial Hospital, Perth, Western Australia, Australia
- Maternal-Fetal Medicine Service, King Edward Memorial Hospital, Perth, WA, Australia
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20
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Yadav A, Beilin LJ, Huang RC, Vlaskovsky P, Newnham JP, White SW, Mori TA. The relationship between intrauterine foetal growth trajectories and blood pressure in young adults. J Hypertens 2022; 40:478-489. [PMID: 34751171 DOI: 10.1097/hjh.0000000000003035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Previous studies have reported an association between low birthweight and elevated blood pressure (BP) in adulthood, but few have examined the relationship between foetal growth and adult BP. METHOD The study examined the association between intrauterine growth trajectories determined by serial ultrasound and BP of the adult offspring in the Raine Study. Foetal growth trajectories for abdominal circumference, femur length and head circumference z-scores were developed using group-based trajectory modelling from 1440 women with serial ultrasounds from 15-weeks pregnancy to birth. Seven abdominal circumference, five femur length and five head circumference trajectory groups were identified. Longitudinal linear mixed modelling examined the association between trajectory groups and offspring BP at 20 (n = 487), 22 (n = 419) and 27 (n = 436) years. RESULTS Higher SBP in adulthood significantly associated with two abdominal circumference trajectories, one with the most restricted foetal growth [3.52 mmHg, 95% confidence interval (95% CI) = 1.20-5.83] and the other with sustained low-growth (1.92 mmHg, 95% CI = 0.11-3.73) compared with an average growth trajectory, after adjusting for sex, age, alcohol consumption and BMI. Foetal head circumference trajectories with sustained low-growth or average-to-falling growth significantly associated with higher adult systolic (3.45 mmHg, 95% CI = 1.77-5.14 and 1.54 mmHg, 95% CI = 0.30-2.78, respectively) and diastolic (2.28 mmHg, 95% CI = 0.77-3.78 and 1.47 mmHg, 95% CI = 0.54-2.39, respectively) BP compared with average growth. Low femur length growth associated with higher adult DBP after adjusting for sex, but not after accounting for adult BMI. CONCLUSION Our results show that restricted foetal head and abdominal circumference associated with higher adult SBP over two decades later, reinforcing the importance of the early intrauterine environment and its influence on adult BP.
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Affiliation(s)
| | | | | | | | - John P Newnham
- Division of Obstetrics and Gynaecology, University of Western Australia, Perth, Western Australia, Australia
| | - Scott W White
- Division of Obstetrics and Gynaecology, University of Western Australia, Perth, Western Australia, Australia
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21
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Bailey HD, Adane AA, White SW, Farrant BM, Shepherd CCJ. Caesarean section following antepartum stillbirth in Western Australia 2010-2015: A population-based study. Aust N Z J Obstet Gynaecol 2022; 62:518-524. [PMID: 35170023 DOI: 10.1111/ajo.13494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND There is scant literature about antepartum stillbirth management but guidelines usually recommend reserving caesarean sections for exceptional circumstances. However, little is known about caesarean section rates following antepartum stillbirth in Australia. AIMS We aimed to describe the onset of labour, mode of birth, and use of analgesia and anaesthesia following antepartum stillbirth and to identify factors associated with caesarean section. MATERIAL AND METHODS In this retrospective cohort study, we used a population-based dataset of all singleton antepartum stillbirths ≥20 weeks gestation in Western Australia between 2010-2015. The overall, primary and repeat caesarean section rates for antepartum stillbirths were calculated and multivariable Poisson regression analyses were performed to identify associated factors, and to calculate relative risks (RRs) and 95% confidence intervals (CIs). RESULTS This study included 634 antepartum stillbirths. Labour was spontaneous for 134 (21.1%), induced for 457 (72.1%), and 43 (6.8%) had a prelabour caesarean section. The overall, primary and repeat caesarean section rates were 8.5%, 4.6% and 23.0% respectively and increased with gestation (P trends all <0.01). Other factors associated with an increased caesarean section risk included: any placenta praevia or placental abruption, birth at a metropolitan private hospital, large-for-gestational-age birthweight, and any maternal chronic condition. During labour, the most frequently used types of analgesia were systemic narcotics (46.0%) and regional blocks (34.7%) while among those who had a caesarean section, 40.7% had a general anaesthetic. CONCLUSIONS In Western Australia between 2010-2015, the caesarean section rates among women with antepartum stillbirths were low, in line with current guidelines.
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Affiliation(s)
- Helen D Bailey
- Telethon Kids Institute, The University of Western Australia, Perth, Western Australia, Australia
| | - Akilew A Adane
- Telethon Kids Institute, The University of Western Australia, Perth, Western Australia, Australia.,Ngangk Yira Research Centre for Aboriginal Health & Social Equity, Murdoch University, Perth, Western Australia, Australia
| | - Scott W White
- Division of Obstetrics and Gynaecology, The University of Western Australia, Perth, Western Australia, Australia.,King Edward Memorial Hospital, Maternal Fetal Medicine Service, Perth, Western Australia, Australia
| | - Brad M Farrant
- Telethon Kids Institute, The University of Western Australia, Perth, Western Australia, Australia
| | - Carrington C J Shepherd
- Telethon Kids Institute, The University of Western Australia, Perth, Western Australia, Australia.,Ngangk Yira Research Centre for Aboriginal Health & Social Equity, Murdoch University, Perth, Western Australia, Australia.,Curtin Medical School, Faculty of Health Sciences, Curtin University, Perth, Western Australia, Australia
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22
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Adane AA, Shepherd CCJ, Farrant BM, White SW, Bailey HD. Patterns of recurrent preterm birth in Western Australia: A 36-year state-wide population-based study. Aust N Z J Obstet Gynaecol 2022; 62:494-499. [PMID: 35156708 DOI: 10.1111/ajo.13492] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
BACKGROUND It is known that a previous preterm birth increases the risk of a subsequent preterm birth, but a limited number of studies have examined this beyond two consecutive pregnancies. AIMS This study aimed to assess the risk and patterns of (recurrent) preterm birth up to the fourth pregnancy. MATERIALS AND METHODS We used Western Australian routinely linked population health datasets to identify women who had two or more consecutive singleton births (≥20 weeks gestation) from 1980 to 2015. A log-binomial model was used to calculate risk ratios (RRs) and 95% confidence interval (CIs) for preterm birth risk in the third and fourth deliveries by the combined outcomes of previous pregnancies. RESULTS We analysed 255 435 women with 651 726 births. About 7% of women had a preterm birth in the first delivery, and the rate of continuous preterm birth recurrence was 22.9% (second), 44.9% (third) and 58.5% (fourth) deliveries. The risk of preterm birth at the third delivery was highest for women with two prior indicated preterm births (RR 12.5, 95% CI: 11.3, 13.9) and for those whose first pregnancy was 32-36 weeks gestation, and second pregnancy was less than 32 weeks gestation (RR 11.8, 95% CI: 10.3, 13.5). There were similar findings for the second and fourth deliveries. CONCLUSIONS Our findings demonstrate that women with any prior preterm birth were at greater risk of preterm birth in subsequent pregnancies compared with women with only term births, and the risk increased with shorter gestational length, and the number of previous preterm deliveries, especially sequential ones.
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Affiliation(s)
- Akilew A Adane
- Telethon Kids Institute, The University of Western Australia, Perth, Western Australia, Australia.,Ngangk Yira Research Centre for Aboriginal Health & Social Equity, Murdoch University, Perth, Western Australia, Australia
| | - Carrington C J Shepherd
- Telethon Kids Institute, The University of Western Australia, Perth, Western Australia, Australia.,Ngangk Yira Research Centre for Aboriginal Health & Social Equity, Murdoch University, Perth, Western Australia, Australia.,Curtin Medical School, Curtin University, Perth, Western Australia, Australia
| | - Brad M Farrant
- Telethon Kids Institute, The University of Western Australia, Perth, Western Australia, Australia
| | - Scott W White
- Division of Obstetrics and Gynaecology, The University of Western Australia, Perth, Western Australia, Australia.,Maternal Fetal Medicine Service, King Edward Memorial Hospital, Perth, Western Australia, Australia
| | - Helen D Bailey
- Telethon Kids Institute, The University of Western Australia, Perth, Western Australia, Australia
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Ahmed MA, Bailey HD, Pereira G, White SW, Wong K, Shepherd CCJ. Trends and burden of diabetes in pregnancy among Aboriginal and non-Aboriginal mothers in Western Australia, 1998-2015. BMC Public Health 2022; 22:263. [PMID: 35139837 PMCID: PMC8827280 DOI: 10.1186/s12889-022-12663-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Accepted: 01/21/2022] [Indexed: 12/13/2022] Open
Abstract
Background Diabetes in pregnancy (DIP), which includes pre-gestational and gestational diabetes, is more prevalent among Aboriginal women. DIP and its adverse neonatal outcomes are associated with diabetes and cardiovascular disease in the offspring. This study investigated the impact of DIP on trends of large for gestational age (LGA) in Aboriginal and non-Aboriginal populations, and added to the limited evidence on temporal trends of DIP burden in these populations. Methods We conducted a retrospective cohort study that included all births in Western Australia between 1998 and 2015 using linked population health datasets. Time trends of age-standardised and crude rates of pre-gestational and gestational diabetes were estimated in Aboriginal and non-Aboriginal mothers. Mixed-effects multivariable logistic regression was used to estimate the association between DIP and population LGA trends over time. Results Over the study period, there were 526,319 births in Western Australia, of which 6.4% were to Aboriginal mothers. The age-standardised annual rates of pre-gestational diabetes among Aboriginal mothers rose from 4.3% in 1998 to 5.4% in 2015 and remained below 1% in non-Aboriginal women. The comparable rates for gestational diabetes increased from 6.7 to 11.5% over the study period in Aboriginal women, and from 3.5 to 10.2% among non-Aboriginal mothers. LGA rates in Aboriginal babies remained high with inconsistent and no improvement in pregnancies complicated by gestational diabetes and pre-gestational diabetes, respectively. Regression analyses showed that DIP explained a large part of the increasing LGA rates over time in Aboriginal babies. Conclusions There has been a substantial increase in the burden of pre-gestational diabetes (Aboriginal women) and gestational diabetes (Aboriginal and non-Aboriginal) in recent decades. DIP appears to substantially contribute to increasing trends in LGA among Aboriginal babies. Supplementary Information The online version contains supplementary material available at 10.1186/s12889-022-12663-6.
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Affiliation(s)
- Marwan Awad Ahmed
- Telethon Kids Institute, University of Western Australia, P.O. Box 855, West Perth, Western Australia, 6872, Australia. .,School of Population and Global Health, The University of Western Australia, Perth, Australia.
| | - Helen D Bailey
- Telethon Kids Institute, University of Western Australia, P.O. Box 855, West Perth, Western Australia, 6872, Australia
| | - Gavin Pereira
- Telethon Kids Institute, University of Western Australia, P.O. Box 855, West Perth, Western Australia, 6872, Australia.,Curtin School of Population Health, Curtin University, Perth, Western Australia, Australia.,Centre for Fertility and Health (CeFH), Norwegian Institute of Public Health, Oslo, Norway
| | - Scott W White
- Division of Obstetrics and Gynaecology, The University of Western Australia, Perth, WA, Australia.,Maternal Fetal Medicine Service, King Edward Memorial Hospital, Subiaco, WA, Australia
| | - Kingsley Wong
- Telethon Kids Institute, University of Western Australia, P.O. Box 855, West Perth, Western Australia, 6872, Australia.,Curtin School of Population Health, Curtin University, Perth, Western Australia, Australia
| | - Carrington C J Shepherd
- Telethon Kids Institute, University of Western Australia, P.O. Box 855, West Perth, Western Australia, 6872, Australia.,Curtin Medical School, Faculty of Health Sciences, Curtin University, Perth, Australia.,Ngangk Yira Research Centre, Murdoch University, Perth, WA, Australia
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Shrestha Khatri N, White SW, Graham DF. Associations between aspirin prophylaxis and fetal growth and preeclampsia in women with pregestational diabetes. Aust N Z J Obstet Gynaecol 2021; 62:268-273. [PMID: 34677825 DOI: 10.1111/ajo.13449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 09/21/2021] [Accepted: 10/03/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND Current guidelines recommend low-dose aspirin for preeclampsia prophylaxis in all women with pregestational (type one and type two) diabetes mellitus. Most trials showing the efficacy of low-dose aspirin in reducing preeclampsia risk have either excluded or included only small numbers of such women. AIM To evaluate the association of low-dose aspirin prophylaxis in women with pregestational diabetes with the incidence of large for gestational age (LGA) infants and preeclampsia. MATERIALS AND METHODS A retrospective observational study of pregnancies to women with pregestational diabetes. Outcomes included rates of LGA and preeclampsia. Women were prescribed low-dose aspirin prophylaxis from early pregnancy according to physician discretion after considering preeclampsia risk. Statistical analyses assessed the group overall and with stratification by diabetes type and other preeclampsia risk factors. RESULTS Of 716 pregnancies, aspirin was prescribed in 296 (41%). Preeclampsia occurred more frequently in women who received aspirin (58 of 296, 20%) than those who did not (39 of 420, 9%, P < 0.001). This association was maintained after adjustment for diabetes type and other preeclampsia risk factors (adjusted odds ratio (aOR) 1.78; 95% CI 1.02-3.11). LGA infants were commoner in women with type one diabetes of short duration who took aspirin (aOR 2.21; 95% CI 1.05-4.66). CONCLUSION Low-dose aspirin use in women with pregestational diabetes may be associated with an increased risk of preeclampsia. In women with type one diabetes of short duration aspirin use may be associated with an increased risk of LGA infants. The retrospective nature of this study is acknowledged and assessment of such prophylaxis by further studies is warranted.
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Affiliation(s)
- Nely Shrestha Khatri
- Department of Obstetrics and Gynaecology, King Edward Memorial Hospital, Perth, Western Australia, Australia
| | - Scott W White
- Maternal and Fetal Medicine Service, Division of Obstetrics and Gynaecology, The University of Western Australia, King Edward Memorial Hospital, Perth, Western Australia, Australia
| | - Dorothy F Graham
- Faculty of Health and Medical Sciences Obstetrics and Gynaecology, The University of Western Australia, King Edward Memorial Hospital, Perth, Western Australia, Australia
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Newnham JP, Schilling C, Petrou S, Morris JM, Wallace EM, Brown K, Edwards L, Skubisz MM, White SW, Rynne B, Arrese CA, Doherty DA. The health and educational costs of preterm birth to 18 years of age in Australia. Aust N Z J Obstet Gynaecol 2021; 62:55-61. [PMID: 34268727 DOI: 10.1111/ajo.13405] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 06/08/2021] [Accepted: 06/16/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND Preterm birth is the greatest cause of death up to five years of age and an important contributor to lifelong disability. There is increasing evidence that a meaningful proportion of early births may be prevented, but widespread introduction of effective preventive strategies will require financial support. AIMS This study estimated the economic cost to the Australian government of preterm birth, up to 18 years of age. MATERIALS AND METHODS A decision-analytic model was developed to estimate the costs of preterm birth in Australia for a hypothetical cohort of 314 814 children, the number of live births in 2016. Costs to Australia's eight jurisdictions included medical expenditures and additional costs to educational services. RESULTS The total cost of preterm birth to the Australian government associated with the annual cohort was estimated at $1.413 billion (95% CI 1047-1781). Two-thirds of the costs were borne by healthcare services during the newborn period and one-quarter of the costs by educational services providing special assistance. For each child, the costs were highest for those born at the earliest survivable gestational age, but the larger numbers of children born at later gestational ages contributed heavily to the overall economic burden. CONCLUSION Preterm birth leaves many people with lifelong disabilities and generates a significant economic burden to society. The costs extend beyond those to the healthcare system and include additional educational needs. Assessments of economic costs should inform economic evaluations of interventions aimed at the prevention or treatment of preterm birth.
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Affiliation(s)
- John P Newnham
- Maternal Fetal Medicine Service, King Edward Memorial Hospital, Perth, Western Australia, Australia.,Division of Obstetrics and Gynaecology, The University of Western Australia, Perth, Western Australia, Australia
| | - Chris Schilling
- Economics and Modelling, KPMG, Melbourne, Victoria, Australia
| | - Stavros Petrou
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Jonathan M Morris
- Sydney Medical School - Northern, University of Sydney, Sydney, New South Wales, Australia.,Department of Obstetrics and Gynaecology, Royal North Shore Hospital, Sydney, New South Wales, Australia
| | - Euan M Wallace
- Department of Obstetrics and Gynaecology, Monash University, Melbourne, Victoria, Australia.,Safer Care Victoria, Melbourne, Victoria, Australia
| | - Kiarna Brown
- Department of Obstetrics and Gynaecology, Royal Darwin Hospital, Darwin, Northern Territory, Australia
| | - Lindsay Edwards
- Department of Obstetrics and Gynaecology, Royal Hobart Hospital, Hobart, Tasmania, Australia
| | - Monika M Skubisz
- Department of Obstetrics, Women's and Children's Hospital, Adelaide, South Australia, Australia.,South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
| | - Scott W White
- Division of Obstetrics and Gynaecology, The University of Western Australia, Perth, Western Australia, Australia.,Maternal Fetal Medicine Service, King Edward Memorial Hospital, Perth, Western Australia, Australia
| | - Brendan Rynne
- Economics and Modelling, KPMG, Melbourne, Victoria, Australia
| | - Catherine A Arrese
- Division of Obstetrics and Gynaecology, The University of Western Australia, Perth, Western Australia, Australia
| | - Dorota A Doherty
- Division of Obstetrics and Gynaecology, The University of Western Australia, Perth, Western Australia, Australia
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Adane AA, Bailey HD, Marriott R, Farrant BM, White SW, Shepherd CCJ. Disparities in severe neonatal morbidity and mortality between Aboriginal and non-Aboriginal births in Western Australia: a decomposition analysis. J Epidemiol Community Health 2021; 75:1187-1194. [PMID: 34006585 DOI: 10.1136/jech-2020-214507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 05/05/2021] [Accepted: 05/08/2021] [Indexed: 11/03/2022]
Abstract
BACKGROUND The health disadvantages faced by Australian Aboriginal peoples are evidenced in early life, although few studies have focused on the reasons for population-level inequalities in more severe adverse outcomes. This study aimed to examine the scale of disparity in severe neonatal morbidity (SNM) and mortality between Aboriginal and non-Aboriginal births and quantify the relative contributions of important maternal and infant factors. METHOD A retrospective cohort study with singleton live births (≥32 weeks' gestation) was conducted using Western Australia linked whole population datasets, from 1999 to 2015. Aboriginal status was determined based on the mothers' self-reported ethnic origin. An Australian validated indicator was adapted to identify neonates with SNM. The Oaxaca-Blinder method was employed to calculate the contribution of each maternal and infant factor to the disparity in SNM and mortality. RESULTS Analyses included 425 070 births, with 15 967 (3.8%) SNM and mortality cases. The disparity in SNM and mortality between Aboriginal and non-Aboriginal births was 2.9 percentage points (95% CI 2.6 to 3.2). About 71% of this gap was explained by differences in modelled factors including maternal area of residence (23.8%), gestational age (22.2%), maternal age (7.5%) and antenatal smoking (7.2%). CONCLUSIONS There is a considerable disparity in SNM and mortality between Aboriginal and non-Aboriginal births in Western Australia with the majority of this related to differences in maternal sociodemographic factors, antenatal smoking and gestational age. Public health programmes targeting these factors may contribute to a reduction in early life health differentials and benefit Aboriginal population health through the life course.
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Affiliation(s)
- Akilew A Adane
- Telethon Kids Institute, The University of Western Australia, Nedlands, Western Australia, Australia .,Ngangk Yira Research Centre for Aboriginal Health and Social Equity, Murdoch University, Murdoch, Western Australia, Australia
| | - Helen D Bailey
- Telethon Kids Institute, The University of Western Australia, Nedlands, Western Australia, Australia
| | - Rhonda Marriott
- Ngangk Yira Research Centre for Aboriginal Health and Social Equity, Murdoch University, Murdoch, Western Australia, Australia
| | - Brad M Farrant
- Telethon Kids Institute, The University of Western Australia, Nedlands, Western Australia, Australia
| | - Scott W White
- Division of Obstetrics and Gynaecology, The University of Western Australia, Nedlands, Western Australia, Australia.,Maternal Fetal Medicine Service, King Edward Memorial Hospital for Women Perth, Subiaco, Western Australia, Australia
| | - Carrington C J Shepherd
- Telethon Kids Institute, The University of Western Australia, Nedlands, Western Australia, Australia.,Ngangk Yira Research Centre for Aboriginal Health and Social Equity, Murdoch University, Murdoch, Western Australia, Australia.,Curtin Medical School, Curtin University, Bentley, Western Australia, Australia
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Dyer KIC, Sanfilippo PG, White SW, Guggenheim JA, Hammond CJ, Newnham JP, Mackey DA, Yazar S. Associations Between Fetal Growth Trajectories and the Development of Myopia by 20 Years of Age. Invest Ophthalmol Vis Sci 2021; 61:26. [PMID: 33355605 PMCID: PMC7774062 DOI: 10.1167/iovs.61.14.26] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Purpose To evaluate the contribution of genetic and early life environmental factors, as reflected by fetal anthropometric growth trajectories, toward the development of myopia during childhood and adolescence. Methods This analysis included 498 singleton Caucasian participants from the Raine Study, a pregnancy cohort study based in Western Australia. Serial fetal biometric measurements of these participants were collected via ultrasound scans performed at 18, 24, 28, 34, and 38 weeks’ gestation. At a 20-year follow-up, the participants underwent a comprehensive ophthalmic examination, including cycloplegic autorefraction and ocular biometry measurements. Using a group-based trajectory modeling approach, we identified groups of participants with similar growth trajectories based on measurements of fetal head circumference (HC), abdominal circumference, femur length (FL), and estimated fetal weight (EFW). Differences between trajectory groups with respect to prevalence of myopia, axial length (AL), and corneal radius of curvature measured at the 20-year follow-up were evaluated via logistic regression and analysis of variance. Results Prevalence of myopia was highest among participants with consistently short or consistently long FLs (P = 0.04). There was also a trend toward increased prevalence with larger HC in late gestation, although not at a statistically significant level. Trajectory groups reflecting faster HC, FL, or EFW growth correlated with significantly flatter corneas (P = 0.03, P = 0.04, and P = 0.01, respectively) and a general, but not statistically significant, increase in AL. Conclusions Environmental or genetic factors influencing intrauterine skeletal growth may concurrently affect ocular development, with effects persisting into adulthood.
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Affiliation(s)
- Kathleen I C Dyer
- Centre for Ophthalmology and Visual Science, Lions Eye Institute, University of Western Australia, Perth, Western Australia, Australia.,School of Medicine, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Western Australia, Australia
| | - Paul G Sanfilippo
- Centre for Ophthalmology and Visual Science, Lions Eye Institute, University of Western Australia, Perth, Western Australia, Australia.,Centre for Eye Research Australia, Department of Ophthalmology, University of Melbourne, Royal Victorian Eye and Ear Hospital, Melbourne, Victoria, Australia
| | - Scott W White
- Division of Obstetrics and Gynaecology, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Western Australia, Australia.,Maternal Fetal Medicine Service, King Edward Memorial Hospital, Perth, Western Australia, Australia
| | - Jeremy A Guggenheim
- School of Optometry and Vision Science, Cardiff University, Cardiff, South Glamorgan, United Kingdom
| | - Chris J Hammond
- Department of Twin Research and Genetic Epidemiology, King's College London, London, United Kingdom
| | - John P Newnham
- Division of Obstetrics and Gynaecology, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Western Australia, Australia.,Maternal Fetal Medicine Service, King Edward Memorial Hospital, Perth, Western Australia, Australia
| | - David A Mackey
- Centre for Ophthalmology and Visual Science, Lions Eye Institute, University of Western Australia, Perth, Western Australia, Australia
| | - Seyhan Yazar
- Centre for Ophthalmology and Visual Science, Lions Eye Institute, University of Western Australia, Perth, Western Australia, Australia.,Garvan Institute of Medical Research, Sydney, New South Wales, Australia
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Abstract
OBJECTIVES To assess the scale of ethnic inequalities in severe maternal morbidity (SMM) rates and quantify the contribution of maternal characteristics to these disparities. DESIGN Retrospective cohort study. SETTING Whole-of-population linked administrative data from 2002 to 2015 in Western Australia. PARTICIPANTS Women with 410 043 birth events (includes all births from the same pregnancy) of 20 weeks' or more gestation, including terminations for congenital anomalies. PRIMARY AND SECONDARY OUTCOME MEASURES Women with SMM were identified based on a composite indicator of SMM using diagnosis and procedure codes developed for use in routinely collected data. Mothers were classified into seven ethnic groups, based on their reported ethnic origin. The associations between maternal ethnic origin and SMM were examined using a log-binomial model, which estimates risk ratios (RRs) and 95% CIs. The Blinder-Oaxaca decomposition technique was employed to partition the disparity in SMM between Aboriginal and Caucasian populations into 'explained' and 'unexplained' components. RESULTS During the study period, 9378 SMM cases were documented. In the adjusted model, Aboriginal (RR 1.73, 95% CI 1.59 to 1.87), African (RR 1.64, 95% CI 1.43 to 1.89) and 'other' ethnicity (RR 1.49, 95% CI 1.37 to 1.63) women were at significantly higher risk of SMM compared with Caucasian women. Teenage and older mothers and socioeconomically disadvantaged women were also at greater risk of SMM. Differences in sociodemographic characteristics explained 33.2% of the disparity in SMM between Aboriginal and Caucasian women. CONCLUSIONS There are distinct disparities in SMM by ethnicity in Western Australia, with a greater risk among Aboriginal and African women. While improvements in SES and a reduction in teenage pregnancy can potentially support a sizeable reduction in SMM rate inequalities, future research should investigate other potential pathways and targeted interventions to close the ethnicity disparity.
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Affiliation(s)
- Akilew A Adane
- Telethon Kids Institute, The University of Western Australia, Nedlands, Western Australia, Australia
| | - Brad M Farrant
- Telethon Kids Institute, The University of Western Australia, Nedlands, Western Australia, Australia
| | - Rhonda Marriott
- Ngangk Yira Research Centre for Aboriginal Health & Social Equity, Murdoch University, Murdoch, Western Australia, Australia
| | - Scott W White
- Division of Obstetrics and Gynaecology, The University of Western Australia, Nedlands, Western Australia, Australia
- Maternal Fetal Medicine Service, King Edward Memorial Hospital, Subiaco, Western Australia, Australia
| | - Helen D Bailey
- Telethon Kids Institute, The University of Western Australia, Nedlands, Western Australia, Australia
| | - Carrington C J Shepherd
- Telethon Kids Institute, The University of Western Australia, Nedlands, Western Australia, Australia
- Ngangk Yira Research Centre for Aboriginal Health & Social Equity, Murdoch University, Murdoch, Western Australia, Australia
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Sandy-Hodgetts K, Parsons R, Norman R, Fear MW, Wood FM, White SW. Effectiveness of negative pressure wound therapy in the prevention of surgical wound complications in the cesarean section at-risk population: a parallel group randomised multicentre trial-the CYGNUS protocol. BMJ Open 2020; 10:e035727. [PMID: 33077559 PMCID: PMC7574944 DOI: 10.1136/bmjopen-2019-035727] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
INTRODUCTION Caesarean delivery is steadily becoming one of the more common surgical procedures in Australia with over 100 000 caesarean sections performed each year. Over the last 10 years in Australia, the caesarean section rate has increased from 28% in 2003 to 33% in 2013. On the international stage, the Australian caesarean delivery rates are higher than the average for the Organisation for Economic Co-operation and Development, Australia ranked as 8 out of 33 and is second to the USA. Postoperative surgical site infections (SSIs) and wound complications are the most common and costly event following a caesarean section. Globally, complication rates following a caesarean delivery vary from 4.9% to 9.8%. Complications such as infection and wound breakdown affect the postpartum mother's health and well-being, and contribute to healthcare costs for clinical management that often spans the acute, community and primary healthcare settings. Published level one studies using advanced wound dressings in the identified 'at-risk' population prior to surgery for prophylactic intervention are yet to be forthcoming. METHODS AND ANALYSIS A parallel group randomised control trial of 448 patients will be conducted across two metropolitan hospitals in Perth, Western Australia, which provide obstetric and midwifery services. We will recruit pregnant women in the last trimester, prior to their admission into the healthcare facility for delivery of their child. We will use a computer-generated block sequence to randomise the 448 participants to either the interventional (negative pressure wound therapy (NPWT) dressing, n=224) or comparator arm (non-NPWT dressing, n=224). The primary outcome measure is the occurrence of surgical wound dehiscence (SSWD) or SSI. The Centres for Disease Control reporting definition of either superficial or deep infection at 30 days will be used as the outcome measure definition. SWD will be classified as per the World Union of Wound Healing Societies grading system (grade I-IV). We will assess recruitment rate, and adherence to intervention and follow-up. We will assess the potential effectiveness of NPWT in the prevention of postpartum surgical wound complications at three time points during the study; postoperative days 5, 14 and 30, after which the participant will be closed out of the trial. We will use statistical methods to determine efficacy, and risk stratification will be conducted to determine the SWD risk profile of the participant. Follow-up at day 30 will assess superficial and deep infection, and wound dehiscence (grade I-IV) and the core outcome data set for wound complications. This study will collect health-related quality of life (European Quality of Life 5-Dimensions 5-Level Scale), mortality and late complications such as further surgery with a cost analysis conducted. The primary analysis will be by intention-to-treat. This clinical trial protocol follows the Standard Protocol Items: Recommendations for Interventional Trials (SPIRIT) and the Consolidated Standards of Reporting Trials guidelines. ETHICS AND DISSEMINATION Ethics approval was obtained through St John of God Health Care (HREC1409), Western Australia Department of Health King Edward Memorial Hospital (HREC3111). Study findings will be published in peer-reviewed journals and presented at international conferences. We used the SPIRIT checklist when writing our study protocol. TRIAL REGISTRATION NUMBER Australian and New Zealand Clinical Trials Registry (ACTRN12618002006224p).
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Affiliation(s)
- Kylie Sandy-Hodgetts
- Skin Integrity Research Institute, School of Biomedical Sciences, University of Western Australia, Crawley, Western Australia, Australia
| | - Richard Parsons
- School of Occupational Therapy, Social Work and Speech Pathology, Curtin University Faculty of Health Sciences, Perth, Western Australia, Australia
| | - Richard Norman
- School of Public Health, Curtin University Faculty of Health Sciences, Perth, Western Australia, Australia
| | - Mark W Fear
- Burn Injury Research Unit, School of Biomedical Sciences, University of Western Australia, Crawley, Western Australia, Australia
| | - Fiona M Wood
- Fiona Stanley and Princess Margaret Hospitals, Burns Service of Western Australia, Perth, Western Australia, Australia
| | - Scott W White
- Department of Obstetrics and Gynaecology, The University of Western Australia Faculty of Health and Medical Sciences, Perth, Western Australia, Australia
- Maternal Fetal Medicine Service, King Edward Memorial Hospital, Subiaco, Western Australia, Australia
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Dorkham MC, Epee-Bekima MJ, Sylvester HC, White SW. Experience of Bakri balloon tamponade at a single tertiary centre: a retrospective case series. J OBSTET GYNAECOL 2020; 41:854-859. [PMID: 33063565 DOI: 10.1080/01443615.2020.1799341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Intrauterine balloon tamponade (IUBT) is an established fertility-sparing and life-saving treatment for postpartum haemorrhage. However, high-level evidence is lacking for specific aspects of its use. Our aim was to evaluate a large case series of IUBT to inform evidence-based clinical practice. 296 cases of IUBT over a three-year period at a tertiary obstetric referral centre were identified and reviewed. Demographic, clinical, and procedural outcome measures were collected; including rates of success and failure of IUBT, duration of tamponade, and complications. IUBT was successful in 265 (90%) of women and failed in 18 (6%). All failures occurred within six hours of balloon insertion. Once deemed stable and successful at six hours, no women required return to theatre or further intervention. The mean duration of intrauterine balloon tamponade was 18.5 hours. A large variance in clinical practice exists including duration of intrauterine balloon tamponade, and method and timing of removal. A number of changes informed by the results will be introduced and prospectively audited to improve IUBT use.Impact statementWhat is already known on this subject? Intrauterine balloon tamponade (IUBT) is an important second-line treatment option in severe postpartum haemorrhage (PPH). IUBT is easy to use, is effective especially in the setting of uterine atony, and is associated with minimal complications.What the results of this study add? This study confirms the high rate of success for IUBT in controlling PPH. We found that after six hours, if deemed successful, it is rare that further intervention is required. In addition, tamponade beyond 12 hours, gradual or incremental deflation of the balloon, and antibiotic cover beyond the duration of tamponade are unlikely to yield any further safety benefit.What the implications are of these findings for clinical practice and/or further research? Our findings suggest that women should not be required to fast for balloon removal; removal of the balloon should occur by 12 hours if deemed stable and adequately resuscitated; deflation and removal of the balloon can occur at once; and antibiotics should be ceased after balloon removal. These will allow women to mobilise and recover sooner, and improve flow and throughput in our high-acuity care areas.
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Affiliation(s)
- Mariana C Dorkham
- Division of Obstetrics, Gynaecology and Imaging Directorate, King Edward Memorial Hospital, Perth, Australia
| | - Mathias J Epee-Bekima
- Division of Obstetrics, Gynaecology and Imaging Directorate, King Edward Memorial Hospital, Perth, Australia
| | - Hannah C Sylvester
- Division of Obstetrics, Gynaecology and Imaging Directorate, King Edward Memorial Hospital, Perth, Australia
| | - Scott W White
- Division of Obstetrics, Gynaecology and Imaging Directorate, King Edward Memorial Hospital, Perth, Australia.,Division of Obstetrics & Gynaecology, Faculty of Health and Medical Sciences, The University of Western Australia, Perth, Australia
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Vitner D, Barrett J, Katherine W, White SW, Newnham JP. Community-based, population-focused preterm birth prevention programs - a review. Arch Gynecol Obstet 2020; 302:1317-1328. [PMID: 32875346 DOI: 10.1007/s00404-020-05759-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 08/24/2020] [Indexed: 10/23/2022]
Abstract
PURPOSE Preterm birth (PTB) is the leading cause of perinatal morbidity and mortality worldwide. Being born too early contributes to approximately 70% of neonatal mortality and approximately half of long-term neurodevelopmental disabilities. Various PTB prevention programs have been described going back more than 30 years, and some have described possible success in decreasing the rate of PTB. In addition, there are also PTB prenatal care clinics in many parts of the world, each with the singular goal of reducing the PTB rate in their region. Interventions can be directed at all women for primary prevention and reducing the risk of PTB or used to mitigate risk in women identified to be at increased risk. METHODS A Medline and ClinicalTrials.gov ( www.clinicaltrials.gov ) search was performed (1982-2018), using preterm birth prevention program as the primary medical subject heading, reporting randomized clinical trials, quasi-experimental trials, and analytic studies (including retrospective and prospective cohort studies). We also searched Google for preterm birth prevention programs and prenatal care clinics published on-line. RESULTS Some prevention programs have reported success in lowering rates of PTB, principally using historical controls although the majority were not followed by improved outcomes. CONCLUSION Increasing knowledge and the use of social media to enhance education should now enable greater effectiveness of new programs. Development of regional and national PTB prevention programs should now be considered.
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Affiliation(s)
- Dana Vitner
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada. .,Ruth and Bruce Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel.
| | - Jon Barrett
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada.,Alliance for the Prevention of Preterm Birth and Stillbirth, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Wendy Katherine
- Alliance for the Prevention of Preterm Birth and Stillbirth, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Scott W White
- Division of Obstetrics and Gynaecology, The University of Western Australia, Perth, Western Australia, Australia
| | - John P Newnham
- Division of Obstetrics and Gynaecology, The University of Western Australia, Perth, Western Australia, Australia
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Bailey HD, Adane AA, Farrant BM, White SW, Hardelid P, Shepherd CCJ. Correction to: Profile of severely growth-restricted births undelivered at 40 weeks in Western Australia. Arch Gynecol Obstet 2020; 302:1311-1312. [PMID: 32699934 DOI: 10.1007/s00404-020-05702-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Unfortunately, after publication, we found errors in the extraction of data on gestational diabetes and threatened miscarriage.
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Affiliation(s)
- Helen D Bailey
- Telethon Kids Institute, The University of Western Australia, Nedlands, WA, Australia.
| | - Akilew A Adane
- Telethon Kids Institute, The University of Western Australia, Nedlands, WA, Australia
| | - Brad M Farrant
- Telethon Kids Institute, The University of Western Australia, Nedlands, WA, Australia
| | - Scott W White
- Division of Obstetrics and Gynaecology, The University of Western Australia, Nedlands, WA, Australia.,Maternal Fetal Medicine Service, King Edward Memorial Hospital, Subiaco, WA, Australia
| | - Pia Hardelid
- Population, Policy and Practice Programme, Great Ormond Street Institute of Child Health, University College London, London, UK
| | - Carrington C J Shepherd
- Telethon Kids Institute, The University of Western Australia, Nedlands, WA, Australia.,Ngangk Yira Research Centre for Aboriginal Health & Social Equity, Murdoch University, Murdoch, WA, Australia
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Newnham JP, White SW, Lee HS, Arrese CA, Watts JC, Pedretti MK, Dickinson JE, Doherty DA. The elements of success in a comprehensive state-wide program to safely reduce the rate of preterm birth. PLoS One 2020; 15:e0234033. [PMID: 32497072 PMCID: PMC7272053 DOI: 10.1371/journal.pone.0234033] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 05/18/2020] [Indexed: 11/18/2022] Open
Abstract
Background In 2014, a whole-of-population and multi-faceted preterm birth prevention program was introduced in Western Australia with the single aim of safely lowering the rate of preterm birth. The program included new clinical guidelines, print and social media, and a dedicated new clinic. In the first full calendar year the rate of preterm birth fell by 7.6% and the reduction extended from the 28–31 week gestational age group upwards. Objective The objective of this study was to evaluate outcomes in greater depth and to also include the first three years of the program. Study design This was a prospective population-based cohort study of perinatal outcomes in singleton pregnancies before and after commencement of the program. Results There was a significant reduction in preterm birth in the tertiary center which extended from 28 weeks gestation onwards and was ongoing. In non-tertiary centers there was an initial reduction, but this was not sustained past the first year. The greatest reduction was observed in pregnancies classified at first attendance as low risk. No benefit was observed in the private sector, but a significant reduction was seen in the remote region of the Kimberley where the program was first launched and vaginal progesterone had been made free-of-charge. Conclusion Preterm birth rates can be safely reduced by a multi-faceted and whole-of-population program but the effectiveness requires continuing effort and will be greatest where the strategies are most targeted.
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Affiliation(s)
- John P Newnham
- Maternal Fetal Medicine Service, King Edward Memorial Hospital, Perth, Western Australia, Australia.,Division of Obstetrics and Gynaecology, The University of Western Australia, Perth, Western Australia, Australia
| | - Scott W White
- Maternal Fetal Medicine Service, King Edward Memorial Hospital, Perth, Western Australia, Australia.,Division of Obstetrics and Gynaecology, The University of Western Australia, Perth, Western Australia, Australia
| | - Han-Shin Lee
- Maternal Fetal Medicine Service, King Edward Memorial Hospital, Perth, Western Australia, Australia
| | - Catherine A Arrese
- Division of Obstetrics and Gynaecology, The University of Western Australia, Perth, Western Australia, Australia
| | - Jared C Watts
- Department of Obstetrics and Gynaecology, WA Country Health Service, Kimberley, Western Australia, Australia.,Rural Clinical School of Western Australia, The University of Western Australia, Broome, Western Australia, Australia
| | - Michelle K Pedretti
- Division of Obstetrics and Gynaecology, The University of Western Australia, Perth, Western Australia, Australia.,Department of Ultrasound, King Edward Memorial Hospital, Perth, Western Australia, Australia
| | - Jan E Dickinson
- Maternal Fetal Medicine Service, King Edward Memorial Hospital, Perth, Western Australia, Australia.,Division of Obstetrics and Gynaecology, The University of Western Australia, Perth, Western Australia, Australia
| | - Dorota A Doherty
- Division of Obstetrics and Gynaecology, The University of Western Australia, Perth, Western Australia, Australia
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Adane AA, Bailey HD, Marriott R, Farrant BM, White SW, Morgan VA, Shepherd CC. Role of maternal mental health disorders on stillbirth and infant mortality risk: a protocol for a systematic review and meta-analysis. BMJ Open 2020; 10:e036280. [PMID: 32371521 PMCID: PMC7228523 DOI: 10.1136/bmjopen-2019-036280] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
INTRODUCTION Maternal mental health disorders such as anxiety and depression are major public health concerns. Evidence shows a link between maternal mental health disorders and preterm birth and low birth weight. However, the impacts of maternal mental health disorders on stillbirth and infant mortality have been less investigated and inconsistent findings have been reported. Thus, using the available literature, we plan to examine whether prenatal maternal mental health disorders impact the risk of stillbirth and infant mortality. METHODS AND ANALYSIS This systematic review and meta-analysis will adhere to Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines and will be registered with the International Prospective Register of Systematic Reviews. Systematic searches will be conducted (from database inception to December 2019) in Medline, Embase, PsycINFO and Scopus for studies examining the association of prenatal mental health disorders and stillbirth and infant mortality. The search will be limited to studies published in English language and in humans only, with no restriction on the year of publication. Two independent reviewers will evaluate records and assess the quality of individual studies. The Newcastle-Ottawa scales and GRADE (Grading of Recommendations, Assessment, Development and Evaluations) approach will be used to assess the methodological quality and bias of the included studies. In addition to a narrative synthesis, a random-effects meta-analysis will be conducted when sufficient data are available. I2 statistics will be used to assess between-study heterogeneity in the estimated effect size. ETHICS AND DISSEMINATION As it will be a systematic review and meta-analysis based on previously published evidence, there will be no requirement for ethical approval. Findings will be published in a peer-reviewed journal and will be presented at various conferences. PROSPERO REGISTRATION NUMBER 159834.
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Affiliation(s)
- Akilew A Adane
- Telethon Kids Institute, The University of Western Australia, Nedlands, Western Australia, Australia
| | - Helen D Bailey
- Telethon Kids Institute, The University of Western Australia, Nedlands, Western Australia, Australia
| | - Rhonda Marriott
- Ngangk Yira Research Centre for Aboriginal Health & Social Equity, Murdoch University, Murdoch, Western Australia, Australia
| | - Brad M Farrant
- Telethon Kids Institute, The University of Western Australia, Nedlands, Western Australia, Australia
| | - Scott W White
- Maternal Fetal Medicine Service, King Edward Memorial Hospital, Subiaco, Western Australia, Australia
- Division of Obstetrics and Gynaecology, The University of Western Australia, Nedlands, Western Australia, Australia
| | - Vera A Morgan
- Neuropsychiatric Epidemiology Research Unit, School of Population and Global Health, The University of Western Australia, Nedlands, Western Australia, Australia
| | - Carrington Cj Shepherd
- Telethon Kids Institute, The University of Western Australia, Nedlands, Western Australia, Australia
- Ngangk Yira Research Centre for Aboriginal Health & Social Equity, Murdoch University, Murdoch, Western Australia, Australia
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Baumgartel K, Jensen L, White SW, Wong K, Straker L, Leonard H, Finlay-Jones A, Downs J. The contributions of fetal growth restriction and gestational age to developmental outcomes at 12 months of age: A cohort study. Early Hum Dev 2020; 142:104951. [PMID: 31945660 DOI: 10.1016/j.earlhumdev.2020.104951] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 12/24/2019] [Accepted: 01/02/2020] [Indexed: 10/25/2022]
Abstract
BACKGROUND Preterm birth is a known risk factor for infant development but it is less clear whether fetal growth restriction (FGR) and early term birth between 37 and 39 weeks gestation are associated with risks for infant development. AIMS This study investigated risk factors for adverse developmental outcomes at 12 months of age in a population-based birth cohort. STUDY DESIGN Cohort study. SUBJECTS Participants in the Raine Study, which recruited 2900 women at 18 weeks of gestation (Gen1) and followed up infants longitudinally (Gen2). At 12 months, 1773 mothers provided developmental data for their infants. OUTCOME MEASURE The Ages and Stages Questionnaire (ASQ) was used to measure gross and fine motor, communication, adaptability and personal social development. Multivariate logistic regression analyses were used to estimate associations between FGR, gestational age, sex, breast feeding, parental age, socioeconomic factors and developmental delay at 12 months of age as measured with the ASQ. RESULTS The risk of any delay at 12 months of age, as well as gross motor, fine motor and adaptive delay, was slightly increased for infants born FGR. Preterm and early term birth and male sex were associated with poorer development at 12 months. Breast feeding was protective of developmental status. CONCLUSIONS Developmental assessment using the ASQ of infants with FGR was mostly comparable to those born without FGR at 12 months, although finer-grained neurobehavioural assessments may yield capacity for earlier identification of developmental risk. Our data provide weight to the argument that surveillance of early term infants could enable earlier intervention for children at risk.
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Affiliation(s)
- Katelyn Baumgartel
- School of Physiotherapy and Exercise Science, Curtin University, Perth, Western Australia, Australia
| | - Lynn Jensen
- School of Physiotherapy and Exercise Science, Curtin University, Perth, Western Australia, Australia
| | - Scott W White
- Division of Obstetrics and Gynaecology, The University of Western Australia, Perth, Western Australia, Australia; Maternal Fetal Medicine Service, King Edward Memorial Hospital, Perth, Western Australia, Australia
| | - Kingsley Wong
- Telethon Kids Institute, The University of Western Australia, Perth, Western Australia, Australia
| | - Leon Straker
- School of Physiotherapy and Exercise Science, Curtin University, Perth, Western Australia, Australia
| | - Helen Leonard
- Telethon Kids Institute, The University of Western Australia, Perth, Western Australia, Australia
| | - Amy Finlay-Jones
- Telethon Kids Institute, The University of Western Australia, Perth, Western Australia, Australia
| | - Jenny Downs
- School of Physiotherapy and Exercise Science, Curtin University, Perth, Western Australia, Australia; Telethon Kids Institute, The University of Western Australia, Perth, Western Australia, Australia.
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Vekaria S, Popowicz N, White SW, Mulrennan S. To be or not to be on CFTR modulators during pregnancy: Risks to be considered. J Cyst Fibros 2019; 19:e7-e8. [PMID: 31882306 DOI: 10.1016/j.jcf.2019.12.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 12/05/2019] [Accepted: 12/06/2019] [Indexed: 10/25/2022]
Affiliation(s)
- Sona Vekaria
- Department of Pharmacy, Sir Charles Gairdner Hospital, Perth, WA, Australia.
| | - Natalia Popowicz
- Department of Pharmacy, Sir Charles Gairdner Hospital, Perth, WA, Australia; School of Allied Health, Faculty of Health and Medical Sciences, University of Western Australia, Perth, WA, Australia
| | - Scott W White
- Division of Obstetrics and Gynaecology, Faculty of Health and Medical Sciences, The University of Western Australia, Australia; Maternal Fetal Medicine Service, King Edward Memorial Hospital, Subiaco, Western Australia
| | - Siobhain Mulrennan
- Department of Respiratory Medicine, Sir Charles Gairdner Hospital, Perth, WA, Australia; Institute of Respiratory Health, Sir Charles Gairdner Hospital, Perth, WA, Australia; School of Medicine, Faculty of Health and Medical Sciences, University of Western Australia, Perth, WA, Australia
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Bourke J, Wong K, Srinivasjois R, Pereira G, Shepherd CCJ, White SW, Stanley F, Leonard H. Predicting Long-Term Survival Without Major Disability for Infants Born Preterm. J Pediatr 2019; 215:90-97.e1. [PMID: 31493909 DOI: 10.1016/j.jpeds.2019.07.056] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 06/07/2019] [Accepted: 07/23/2019] [Indexed: 12/20/2022]
Abstract
OBJECTIVE To describe the long-term neurodevelopmental and cognitive outcomes for children born preterm. STUDY DESIGN In this retrospective cohort study, information on children born in Western Australia between 1983 and 2010 was obtained through linkage to population databases on births, deaths, and disabilities. For the purpose of this study, disability was defined as a diagnosis of intellectual disability, autism, or cerebral palsy. The Kaplan-Meier method was used to estimate the probability of disability-free survival up to age 25 years by gestational age. The effect of covariates and predicted survival was examined using parametric survival models. RESULTS Of the 720 901 recorded live births, 12 083 children were diagnosed with disability, and 5662 died without any disability diagnosis. The estimated probability of disability-free survival to 25 years was 4.1% for those born at gestational age 22 weeks, 19.7% for those born at 23 weeks, 42.4% for those born at 24 weeks, 53.0% for those born at 25 weeks, 78.3% for those born at 28 weeks, and 97.2% for those born full term (39-41 weeks). There was substantial disparity in the predicted probability of disability-free survival for children born at all gestational ages by birth profile, with 5-year estimates of 4.9% and 10.4% among Aboriginal and Caucasian populations, respectively, born at 24-27 weeks and considered at high risk (based on low Apgar score, male sex, low sociodemographic status, and remote region of residence) and 91.2% and 93.3%, respectively, for those at low risk (ie, high Apgar score, female sex, high sociodemographic status, residence in a major city). CONCLUSIONS Apgar score, birth weight, sex, socioeconomic status, and maternal ethnicity, in addition to gestational age, have pronounced impacts on disability-free survival.
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Affiliation(s)
- Jenny Bourke
- Telethon Kids Institute, The University of Western Australia, Perth, Australia
| | - Kingsley Wong
- Telethon Kids Institute, The University of Western Australia, Perth, Australia
| | - Ravisha Srinivasjois
- Department of Neonatology and Paediatrics, Joondalup Health Campus, Perth, Australia; School of Paediatrics and Child Health, University of Western Australia, Perth, Australia; School of Public Health, Curtin University, Perth, Australia; School of Medical and Health Sciences, Edith Cowan University, Perth, Australia
| | - Gavin Pereira
- Telethon Kids Institute, The University of Western Australia, Perth, Australia; School of Public Health, Curtin University, Perth, Australia
| | - Carrington C J Shepherd
- Telethon Kids Institute, The University of Western Australia, Perth, Australia; Ngangk Yira Research Centre for Aboriginal Health and Social Equity, Murdoch University, Murdoch, Australia
| | - Scott W White
- Maternal Fetal Medicine Service, King Edward Memorial Hospital, Subiaco, Australia; Division of Obstetrics and Gynaecology, The University of Western Australia, Perth, Australia
| | - Fiona Stanley
- Telethon Kids Institute, The University of Western Australia, Perth, Australia
| | - Helen Leonard
- Telethon Kids Institute, The University of Western Australia, Perth, Australia.
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Adane AA, Bailey HD, Marriott R, Farrant BM, White SW, Stanley FJ, Shepherd CCJ. Disparities between Aboriginal and non-Aboriginal perinatal mortality rates in Western Australia from 1980 to 2015. Paediatr Perinat Epidemiol 2019; 33:412-420. [PMID: 31518017 DOI: 10.1111/ppe.12580] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 07/25/2019] [Accepted: 08/06/2019] [Indexed: 11/27/2022]
Abstract
BACKGROUND Perinatal mortality rates are typically higher in Aboriginal than non-Aboriginal populations of Australia. OBJECTIVES This study aimed to examine the pattern of stillbirth and neonatal mortality rate disparities over time in Western Australia, including an evaluation of these disparities across gestational age groupings. METHODS All singleton births (≥20 weeks gestation) in Western Australia between 1980 and 2015 were included. Linked data were obtained from core population health datasets of Western Australia. Stillbirth and neonatal mortality rates and percentage changes in the rates over time were calculated by Aboriginal status and gestational age categories. RESULTS From 1980 to 2015, data were available for 930 926 births (925 715 livebirths, 5211 stillbirths and 2476 neonatal deaths). Over the study period, there was a substantial reduction in both the Aboriginal (19.6%) and non-Aboriginal (32.3%) stillbirth rates. These reductions were evident in most gestational age categories among non-Aboriginal births and in Aboriginal term births. Concomitantly, neonatal mortality rates decreased in all gestational age windows for both populations, ranging from 32.1% to 77.5%. The overall stillbirth and neonatal mortality rate differences between Aboriginal and non-Aboriginal birth decreased by 0.6 per 1000 births and 3.9 per 1000 livebirths, respectively, although the rate ratios (RR 2.51, 95% CI 2.14, 2.94) and (RR 2.94, 95% CI 2.24, 3.85), respectively reflect a persistent excess of Aboriginal perinatal mortality across the study period. CONCLUSIONS Despite steady improvements in perinatal mortality rates in Western Australia over 3½ decades, the gap between Aboriginal and non-Aboriginal rates remains unchanged in relative terms. There is a continuing, pressing need to address modifiable risk factors for preventable early mortality in Aboriginal populations.
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Affiliation(s)
- Akilew A Adane
- Telethon Kids Institute, The University of Western Australia, West Perth, WA, Australia
| | - Helen D Bailey
- Telethon Kids Institute, The University of Western Australia, West Perth, WA, Australia
| | - Rhonda Marriott
- Ngangk Yira Research Centre, Murdoch University, Perth, WA, Australia
| | - Brad M Farrant
- Telethon Kids Institute, The University of Western Australia, West Perth, WA, Australia
| | - Scott W White
- Division of Obstetrics and Gynaecology, The University of Western Australia, Perth, WA, Australia.,Maternal Fetal Medicine Service, King Edward Memorial Hospital, Subiaco, WA, Australia
| | - Fiona J Stanley
- Telethon Kids Institute, The University of Western Australia, West Perth, WA, Australia
| | - Carrington C J Shepherd
- Telethon Kids Institute, The University of Western Australia, West Perth, WA, Australia.,Ngangk Yira Research Centre, Murdoch University, Perth, WA, Australia
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Adane AA, Shepherd CCJ, Lim FJ, White SW, Farrant BM, Bailey HD. The impact of pre-pregnancy body mass index and gestational weight gain on placental abruption risk: a systematic review and meta-analysis. Arch Gynecol Obstet 2019; 300:1201-1210. [PMID: 31576448 DOI: 10.1007/s00404-019-05320-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 09/21/2019] [Indexed: 01/01/2023]
Abstract
PURPOSE The aim of this systematic review was to evaluate the associations between pre-pregnancy body mass index and gestational weight gain and placental abruption. METHODS Relevant studies were identified from PubMed, EMBASE, Scopus and CINAHL. Unpublished findings from analyses of linked population-based data sets from Western Australia (2012-2015, n = 114,792) were also included. Studies evaluating pre-pregnancy body mass index and/or gestational weight gain and placental abruption were included. Two independent reviewers evaluated studies for inclusion and quality. Data including odds ratios (ORs) and 95% confidence intervals (CIs) were extracted and analysed by random effects meta-analysis. RESULTS 21 studies were included, of which 15 were eligible for meta-analyses. The summary ORs for the association of being underweight, overweight and obese, and placental abruption, compared to normal weight women, were 1.4 (95% CI 1.1, 1.7), 0.8 (95% CI 0.8, 0.9) and 0.8 (95% CI 0.7, 0.9), respectively. These findings remained unchanged when each study was eliminated from the analysis and in subgroup analyses. Although data were scarce, women with gestational weight gain below the Institute of Medicine recommendations appeared to be at greater risk of abruption compared with women who had optimal weight gain. CONCLUSIONS Mothers that are underweight prior to or in early pregnancy are at a moderately increased risk of placental abruption.
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Affiliation(s)
- Akilew A Adane
- Telethon Kids Institute, The University of Western Australia, P.O. Box 855, West Perth, WA, 6872, Australia.
| | - Carrington C J Shepherd
- Telethon Kids Institute, The University of Western Australia, P.O. Box 855, West Perth, WA, 6872, Australia.,Ngangk Yira Aboriginal Health and Social Equity Research Centre, Murdoch University, 90 South Street, Murdoch, WA, 6150, Australia
| | - Faye J Lim
- Telethon Kids Institute, The University of Western Australia, P.O. Box 855, West Perth, WA, 6872, Australia
| | - Scott W White
- Division of Obstetrics and Gynaecology (M550), The University of Western Australia, 35 Stirling Highway, Crawley, WA, 6009, Australia.,Department of Maternal Fetal Medicine, King Edward Memorial Hospital, 374 Bagot Road, Subiaco, WA, 6008, Australia
| | - Brad M Farrant
- Telethon Kids Institute, The University of Western Australia, P.O. Box 855, West Perth, WA, 6872, Australia
| | - Helen D Bailey
- Telethon Kids Institute, The University of Western Australia, P.O. Box 855, West Perth, WA, 6872, Australia
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White SW, Cheng JC, Penova-Veselinovic B, Wang C, White M, Ingleby B, Arnold C, Pennell CE. Single dose v two-dose antenatal anti-D prophylaxis: a randomised controlled trial. Med J Aust 2019; 211:261-265. [PMID: 31304600 DOI: 10.5694/mja2.50266] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 04/08/2019] [Indexed: 12/25/2022]
Abstract
OBJECTIVE To compare rates of detectability of circulating Rh(D)-immunoglobulin (anti-D) at delivery with single and two-dose antenatal anti-D prophylaxis (RAADP) regimens; to compare compliance with the two regimens. DESIGN Open label, randomised controlled trial between May 2013 and November 2015. SETTING, PARTICIPANTS 277 women who attended a tertiary obstetric referral hospital in Perth for antenatal care and were at least 18 years of age, less than 30 weeks pregnant and yet to receive RAADP, Rh(D)-negative (negative antibody screen), and who intended to deliver their baby at the hospital. Exclusion criteria were prior anti-D sensitisation, any contraindication of anti-D administration, and a history of isolated IgA deficiency. INTERVENTIONS One 1500 IU anti-D dose at 28 weeks of pregnancy (single dose regimen); two doses of 625 IU each at 28 and 34 weeks of pregnancy (two-dose regimen). MAIN OUTCOME MEASURES The primary outcome was the proportion of women with detectable anti-D levels at delivery; the secondary outcome was compliance with the allocated RAADP regimen. RESULTS Circulating anti-D was detectable at delivery in a greater proportion of women in the two-dose group (111 of 129, 86%) than in the single dose group (70 of 125, 56%; P < 0.001). Compliance was not significantly different between the single dose (86 of 138, 61%) and two-dose groups (70 of 139, 50%; P = 0.06). CONCLUSIONS The two-dose RAADP schedule currently recommended in Australia provides better protection against Rh(D) sensitisation than a one-dose regimen. TRIAL REGISTRATION Australian and New Zealand Clinical Trials Registry (ACTRN12613000661774).
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Affiliation(s)
- Scott W White
- University of Western Australia, Perth, WA.,King Edward Memorial Hospital for Women, Perth, WA
| | | | | | | | | | | | | | - Craig E Pennell
- University of Newcastle, Newcastle, NSW.,Hunter Medical Research Institute, Newcastle, NSW
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Farrant BM, White SW, Shepherd CCJ. Trends and predictors of extreme preterm birth: Western Australian population-based cohort study. PLoS One 2019; 14:e0214445. [PMID: 30913277 PMCID: PMC6435137 DOI: 10.1371/journal.pone.0214445] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 03/13/2019] [Indexed: 12/01/2022] Open
Abstract
Background The preterm birth rate is rising in high-income countries and is associated with increased mortality and morbidity. Although the risks increase with greater prematurity and risk factors have been found to vary with gestational age and labour onset, few studies have focused on the myriad pathways to extreme preterm birth (20–27 weeks’ gestation). The current study investigated trends in extreme preterm birth by labour onset type and examined the antecedent risks to further our understanding around the identification of high-risk pregnancies. Methods Retrospective cohort study including all singleton extreme preterm births in Western Australia between 1986 and 2010. De-identified data from six core population health datasets were linked and used to ascertain extreme preterm births (excluding medical terminations and birth defects) after spontaneous onset of labour, preterm pre-labour rupture of membranes, and medically indicated labour onset. Trends over time in extreme preterm birth were analysed using linear regression. Multivariable regression techniques were used to assess the relative risks associated with each salient, independent risk factor and to calculate Population Attributable Risks (PARs). Results The extreme preterm birth rate including medical terminations and birth defects significantly increased over time whereas the extreme preterm birth rate excluding medical terminations and birth defects did not change. After medical terminations and birth defects were excluded, the rate of medically indicated extreme preterm births significantly increased over time whereas the rate of preterm pre-labour rupture of membranes extreme preterm births significantly reduced, and the rate of spontaneous extreme preterm births did not significantly change. In the multivariate analyses, factors associated with placental dysfunction accounted for >10% of the population attributable risk within each labour onset type. Conclusions First study to show that the increase in extreme preterm birth in high-income jurisdiction is no longer evident after medical terminations and birth defects are excluded. Interventions that identify and target women at risk of placental dysfunction presents the greatest opportunity to reduce extreme preterm births.
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Affiliation(s)
- Brad M. Farrant
- Telethon Kids Institute, The University of Western Australia, West Perth, Western Australia, Australia
- * E-mail:
| | - Scott W. White
- Division of Obstetrics and Gynaecology (M550), The University of Western Australia, Crawley, Western Australia, Australia
- Department of Maternal Fetal Medicine, King Edward Memorial Hospital, Subiaco, Western Australia, Australia
| | - Carrington C. J. Shepherd
- Telethon Kids Institute, The University of Western Australia, West Perth, Western Australia, Australia
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Abstract
Late preterm and early term birth is associated with adverse short- and long-term consequences, particularly for neurodevelopment. A clear reduction in these births can be achieved by avoidance of non-medically indicated births prior to 39 weeks gestation, as shown following the introduction of prohibitive policies in the USA. However, clinicians and policy-makers must always consider the potential for unintended adverse consequences of such action, such as a potential for an increase in term stillbirth. Finding the balance between optimising long-term neurological outcomes and avoiding rare but devastating term stillbirths is one of the challenges of modern maternity care. In this article we review the current evidence for whether this balance can be found, where early births can be safely prevented, and what remains to be addressed to optimise this balance safely.
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Affiliation(s)
- Scott W White
- Division of Obstetrics and Gynaecology, Faculty of Medicine, Dentistry, and Health Sciences, The University of Western Australia, Perth, WA, Australia; Maternal Fetal Medicine Service, King Edward Memorial Hospital, Subiaco, WA, Australia.
| | - John P Newnham
- Division of Obstetrics and Gynaecology, Faculty of Medicine, Dentistry, and Health Sciences, The University of Western Australia, Perth, WA, Australia; Maternal Fetal Medicine Service, King Edward Memorial Hospital, Subiaco, WA, Australia
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White SW, Eastwood PR, Straker LM, Adams LA, Newnham JP, Lye SJ, Pennell CE. The Raine study had no evidence of significant perinatal selection bias after two decades of follow up: a longitudinal pregnancy cohort study. BMC Pregnancy Childbirth 2017; 17:207. [PMID: 28662683 PMCID: PMC5492127 DOI: 10.1186/s12884-017-1391-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Accepted: 06/21/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Cohort studies may increase or decrease their selection bias as they progress through time. The Western Australian Pregnancy Cohort (Raine) Study has followed 2868 children for over two decades; from fetal into adult life. This paper analyses the cohort over time, assessing potential bias that may come and go with recruitment, retention and loss of participants. METHODS Linked data from all births in Western Australian over the 3 years the Raine Cohort was recruited were obtained to compare perinatal characteristics and subsequent health outcomes between the Western Australian (WA) contemporaneous birth population and the Raine Cohort at five time points. Perinatal exposure-outcome comparisons were employed to assess bias due to non-participation in Raine Study subsets. RESULTS There were demographic differences between the Raine Study cohort and its source population at recruitment with further changes across the period of follow up. Despite these differences, the pregnancy and infant data of those with continuing participation were not significantly different to the WA contemporaneous birth population. None of the exposure-outcome associations were significantly different to those in the WA general population at recruitment or at any cohort reviews suggesting no substantial recruitment or attrition bias. CONCLUSIONS The Raine Study is valuable for association studies, even after 20 years of cohort reviews with increasing non-participation of cohort members. Non-participation has resulted in greater attrition of socially disadvantaged participants, however, exposure-outcome association analyses suggest that there is no apparent resulting selection bias.
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Affiliation(s)
- Scott W White
- School of Women's and Infants' Health, The University of Western Australia at King Edward Memorial Hospital, 374 Bagot Road, Subiaco, WA, 6008, Australia. .,Women and Infants Research Foundation, King Edward Memorial Hospital, 374 Bagot Road, Subiaco, WA, 6008, Australia. .,Maternal Fetal Medicine Service, King Edward Memorial Hospital, 374 Bagot Road, Subiaco, WA, 6008, Australia.
| | - Peter R Eastwood
- Sir Charles Gairdner Hospital, Hospital Avenue, Nedlands, WA, 6009, Australia.,School of Medicine and Pharmacology, The University of Western Australia at Sir Charles Gairdner Hospital, Hospital Avenue, Nedlands, WA, 6009, Australia
| | - Leon M Straker
- School of Physiotherapy and Exercise Science, Faculty of Health Sciences, Curtin University, Kent Street, Bentley, WA, 6102, Australia
| | - Leon A Adams
- Sir Charles Gairdner Hospital, Hospital Avenue, Nedlands, WA, 6009, Australia.,School of Medicine and Pharmacology, The University of Western Australia at Sir Charles Gairdner Hospital, Hospital Avenue, Nedlands, WA, 6009, Australia
| | - John P Newnham
- School of Women's and Infants' Health, The University of Western Australia at King Edward Memorial Hospital, 374 Bagot Road, Subiaco, WA, 6008, Australia.,Women and Infants Research Foundation, King Edward Memorial Hospital, 374 Bagot Road, Subiaco, WA, 6008, Australia.,Maternal Fetal Medicine Service, King Edward Memorial Hospital, 374 Bagot Road, Subiaco, WA, 6008, Australia
| | - Stephen J Lye
- The Lunenfeld-Tanenbaum Research Institute Mount Sinai Hospital Joseph and Wolf Lebovic Health Complex 600 University Avenue, Toronto, ON, M5G 1X5, Canada
| | - Craig E Pennell
- School of Women's and Infants' Health, The University of Western Australia at King Edward Memorial Hospital, 374 Bagot Road, Subiaco, WA, 6008, Australia.,Women and Infants Research Foundation, King Edward Memorial Hospital, 374 Bagot Road, Subiaco, WA, 6008, Australia.,Maternal Fetal Medicine Service, King Edward Memorial Hospital, 374 Bagot Road, Subiaco, WA, 6008, Australia
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Newnham JP, White SW, Meharry S, Lee HS, Pedretti MK, Arrese CA, Keelan JA, Kemp MW, Dickinson JE, Doherty DA. Reducing preterm birth by a statewide multifaceted program: an implementation study. Am J Obstet Gynecol 2017; 216:434-442. [PMID: 27890647 DOI: 10.1016/j.ajog.2016.11.1037] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 11/04/2016] [Accepted: 11/16/2016] [Indexed: 10/20/2022]
Abstract
BACKGROUND A comprehensive preterm birth prevention program was introduced in the state of Western Australia encompassing new clinical guidelines, an outreach program for health care practitioners, a public health program for women and their families based on print and social media, and a new clinic at the state's sole tertiary level perinatal center for referral of those pregnant women at highest risk. The initiative had the single aim of safely lowering the rate of preterm birth. OBJECTIVE The objective of the study was to evaluate the outcomes of the initiative on the rates of preterm birth both statewide and in the single tertiary level perinatal referral center. STUDY DESIGN This was a prospective population-based cohort study of perinatal outcomes before and after 1 full year of implementation of the preterm birth prevention program. RESULTS In the state overall, the rate of singleton preterm birth was reduced by 7.6% and was lower than in any of the preceding 6 years. This reduction amounted to 196 cases relative to the year before the introduction of the initiative and the effect extended from the 28-31 week gestational age group onward. Within the tertiary level center, the rate of preterm birth in 2015 was also significantly lower than in the preceding years. CONCLUSION A comprehensive and multifaceted preterm birth prevention program aimed at both health care practitioners and the general public, operating within the environment of a government-funded universal health care system can significantly lower the rate of early birth. Further research is now required to increase the effect and to determine the relative contributions of each of the interventions.
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Newnham JP, Kemp MW, White SW, Arrese CA, Hart RJ, Keelan JA. Applying Precision Public Health to Prevent Preterm Birth. Front Public Health 2017; 5:66. [PMID: 28421178 PMCID: PMC5379772 DOI: 10.3389/fpubh.2017.00066] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 03/17/2017] [Indexed: 12/12/2022] Open
Abstract
Preterm birth (PTB) is one of the major health-care challenges of our time. Being born too early is associated with major risks to the child with potential for serious consequences in terms of life-long disability and health-care costs. Discovering how to prevent PTB needs to be one of our greatest priorities. Recent advances have provided hope that a percentage of cases known to be related to risk factors may be amenable to prevention; but the majority of cases remain of unknown cause, and there is little chance of prevention. Applying the principle of precision public health may offer opportunities previously unavailable. Presented in this article are ideas that may improve our abilities in the fields of studying the effects of migration and of populations in transition, public health programs, tobacco control, routine measurement of length of the cervix in mid-pregnancy by ultrasound imaging, prevention of non-medically indicated late PTB, identification of pregnant women for whom treatment of vaginal infection may be of benefit, and screening by genetics and other “omics.” Opening new research in these fields, and viewing these clinical problems through a prism of precision public health, may produce benefits that will affect the lives of large numbers of people.
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Affiliation(s)
- John P Newnham
- School of Women's and Infants' Health, The University of Western Australia, Crawley, WA, Australia.,Department of Maternal Fetal Medicine, King Edward Memorial Hospital, Subiaco, WA, Australia
| | - Matthew W Kemp
- School of Women's and Infants' Health, The University of Western Australia, Crawley, WA, Australia
| | - Scott W White
- School of Women's and Infants' Health, The University of Western Australia, Crawley, WA, Australia.,Department of Maternal Fetal Medicine, King Edward Memorial Hospital, Subiaco, WA, Australia
| | - Catherine A Arrese
- School of Women's and Infants' Health, The University of Western Australia, Crawley, WA, Australia
| | - Roger J Hart
- School of Women's and Infants' Health, The University of Western Australia, Crawley, WA, Australia
| | - Jeffrey A Keelan
- School of Women's and Infants' Health, The University of Western Australia, Crawley, WA, Australia
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Laafira A, White SW, Griffin CJ, Graham D. Impact of the new IADPSG gestational diabetes diagnostic criteria on pregnancy outcomes in Western Australia. Aust N Z J Obstet Gynaecol 2015; 56:36-41. [PMID: 26293845 DOI: 10.1111/ajo.12394] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Accepted: 07/13/2015] [Indexed: 01/07/2023]
Abstract
BACKGROUND There is debate as to the most appropriate diagnostic criteria to diagnose gestational diabetes mellitus (GDM). The proposed International Association of Diabetes and Pregnancy Study Groups (IADPSG) criteria have recently been endorsed by various bodies, but there remains no national consensus. AIM To assess the perinatal outcomes of women with GDM classified according to the 1998 Australasian Diabetes in Pregnancy Society (ADIPS) criteria compared to those with GDM by the IADPSG criteria. MATERIALS AND METHODS Results of glucose tolerance tests performed between January 2011 and January 2014 were linked with the perinatal data of those who delivered singleton fetuses after 24 weeks' gestation. Analysed data included birthweight, gestational age at birth, macrosomia, mode of delivery, perinatal mortality, nursery admission, maternal body mass index, and gestational weight gain. RESULTS Of 3571 women, 466 (13%) and 559 (16%) met the criteria for the 1998 ADIPS and IADPSG criteria for GDM, respectively. Those with GDM according to the IADPSG criteria only (6%) were more obese (95% CI 2.3-4.8 kg/m(2) ), delivered neonates on average 106 g heavier (95% CI 19-193 g) and had more fetal macrosomia (18% vs 11%, P = 0.002) than those with normal glucose tolerance. CONCLUSIONS The IADPSG criteria for GDM identified a group of women at previously unrecognised increased risk of adverse perinatal outcomes. Adopting the IADPSG criteria would increase the number of women diagnosed with GDM by 20%; however, the improvements in perinatal morbidity, in addition to potential long-term benefits, may justify the increase in healthcare workload.
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Affiliation(s)
- Aminath Laafira
- King Edward Memorial Hospital, Subiaco, Western Australia, Australia
| | - Scott W White
- School of Women's and Infants' Health, The University of Western Australia, Subiaco, Western Australia, Australia.,Women and Infants Research Foundation, King Edward Memorial Hospital, Subiaco, Western Australia, Australia.,Maternal Fetal Medicine Service, King Edward Memorial Hospital, Subiaco, Western Australia, Australia
| | - Christopher J Griffin
- Maternal Fetal Medicine Service, King Edward Memorial Hospital, Subiaco, Western Australia, Australia
| | - Dorothy Graham
- King Edward Memorial Hospital, Subiaco, Western Australia, Australia.,School of Women's and Infants' Health, The University of Western Australia, Subiaco, Western Australia, Australia
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Abstract
OBJECTIVE To develop customized biometric charts to better define abnormal fetal growth. METHODS A total of 1056 singleton fetuses from the Raine Study underwent serial ultrasound biometry (abdominal circumference [AC], head circumference, and femur length) at 18, 24, 28, 34, and 38 weeks' gestation. Customized biometry trajectories were developed adjusting for epidemiological influences upon fetal biometry using covariates available at 18 weeks gestation. Prediction accuracy (areas under the receiver operating characteristic curve [AUC] and 95% confidence interval [95%CI]) was evaluated by repeated random sub-sampling cross-validation methodology. RESULTS The model for derived estimated fetal weight (EFW) performed well for EFW less than 10th predicted percentile (AUC = 0.695, 95%CI, 0.692-0.699) and EFW greater than 90th predicted percentile (AUC = 0.705, 95%CI, 0.702-0.708). Fetal AC was also well predicted for growth restriction (AUC = 0.789, 95%CI, 0.784-0.794) and macrosomia (AUC = 0.796, 95%CI, 0.793-0.799). Population-derived, sex-specific charts misclassified 7.9% of small fetuses and 10.7% of large fetuses as normal. Conversely, 9.2% of those classified as abnormally grown by population-derived charts were considered normal by customized charts, potentially leading to complications of unnecessary intervention. CONCLUSIONS Customized fetal biometric charts may offer improved ability for clinicians to detect deviations from optimal fetal growth and influence pregnancy management.
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Affiliation(s)
- Scott W White
- a School of Women's and Infants' Health, The University of Western Australia , Perth , Western Australia , Australia .,b Women and Infants Research Foundation, King Edward Memorial Hospital , Perth , Western Australia , Australia .,c Maternal Fetal Medicine Service, King Edward Memorial Hospital , Perth , Western Australia , Australia
| | - Julie A Marsh
- d School of Mathematics and Statistics, The University of Western Australia , Perth , Western Australia , Australia , and
| | - Stephen J Lye
- e Samuel Lunenfeld Research Institute, Mt Sinai Medical Centre, The University of Toronto , Toronto , Ontario , Canada
| | - Laurent Briollais
- e Samuel Lunenfeld Research Institute, Mt Sinai Medical Centre, The University of Toronto , Toronto , Ontario , Canada
| | - John P Newnham
- a School of Women's and Infants' Health, The University of Western Australia , Perth , Western Australia , Australia .,b Women and Infants Research Foundation, King Edward Memorial Hospital , Perth , Western Australia , Australia .,c Maternal Fetal Medicine Service, King Edward Memorial Hospital , Perth , Western Australia , Australia
| | - Craig E Pennell
- a School of Women's and Infants' Health, The University of Western Australia , Perth , Western Australia , Australia .,b Women and Infants Research Foundation, King Edward Memorial Hospital , Perth , Western Australia , Australia .,c Maternal Fetal Medicine Service, King Edward Memorial Hospital , Perth , Western Australia , Australia
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White SW, Porges WL, McRitchie RJ, Reid JV. Haemodynamic effects of arrhythmias: effects of alterations in ventricular rate on cardiac output and peripheral flow distribution. Adv Cardiol 2015; 12:266-78. [PMID: 4838690 DOI: 10.1159/000395471] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Adams LA, White SW, Marsh JA, Lye SJ, Connor KL, Maganga R, Ayonrinde OT, Olynyk JK, Mori TA, Beilin LJ, Palmer LJ, Hamdorf JM, Pennell CE. Association between liver-specific gene polymorphisms and their expression levels with nonalcoholic fatty liver disease. Hepatology 2013; 57:590-600. [PMID: 23213074 DOI: 10.1002/hep.26184] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2012] [Accepted: 09/24/2012] [Indexed: 12/12/2022]
Abstract
UNLABELLED Genetic factors account for a significant proportion of the phenotypic variance of nonalcoholic fatty liver disease (NAFLD); however, very few predisposing genes have been identified. We aimed to (1) identify novel genetic associations with NAFLD by performing a genome-wide association study (GWAS), and (2) examine the biological expression of the strongest genetic associations in a separate cohort. We performed GWAS of a population-based cohort (Raine Study) of 928 adolescents assessed for NAFLD by ultrasound at age 17. Expression of genes with single nucleotide polymorphisms (SNPs) that were associated with NAFLD at a significance level of P < 10(-5) was examined in adults with NAFLD and controls by quantifying hepatic messenger RNA (mRNA) expression and serum levels of protein. After adjustment for sex and degree of adiposity, SNPs in two genes expressed in liver were associated with NAFLD adolescents: group-specific component (GC) (odds ratio [OR], 2.54; P = 1.20 × 10(-6)) and lymphocyte cytosolic protein-1 (LCP1) (OR, 3.29; P = 2.96 × 10(-6)). SNPs in two genes expressed in neurons were also associated with NAFLD: lipid phosphate phosphatase-related protein type 4 (LPPR4) (OR, 2.30; P = 4.82 × 10(-6)) and solute carrier family 38 member 8 (SLC38A8) (OR, 3.14; P = 1.86 × 10(-6) ). Hepatic GC mRNA was significantly reduced (by 83%) and LCP1 mRNA was increased (by 300%) in liver biopsy samples from patients with NAFLD compared to controls (P < 0.05). Mean serum levels of GC protein were significantly lower in patients with NAFLD than controls (250 ± 90 versus 298 ± 90, respectively; P = 0.004); GC protein levels decreased with increasing severity of hepatic steatosis (P < 0.01). CONCLUSION The association between GC and LCP1 SNPs and NAFLD as well as altered biological expression implicate these genes in the pathogenesis of NAFLD.
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Affiliation(s)
- Leon A Adams
- School of Medicine and Pharmacology, University of Western Australia (UWA) Perth, Australia.
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Jawaid A, Riby DM, Owens J, White SW, Tarar T, Schulz PE. 'Too withdrawn' or 'too friendly': considering social vulnerability in two neuro-developmental disorders. J Intellect Disabil Res 2012; 56:335-350. [PMID: 21801261 DOI: 10.1111/j.1365-2788.2011.01452.x] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
In some neuro-developmental disorders, the combined effect of intellectual disability and atypicalities of social cognition may put individuals at increased vulnerability in their social environment. The neuro-developmental disorders Williams syndrome, characterised by 'hypersociability', and autism spectrum disorders, characterised by 'social withdrawal', are at two extremes of atypical social functioning in humans. In this article, we use Williams syndrome and autism spectrum disorders as exemplars to demonstrate how atypicalities of social cognition may contribute to social vulnerability in these populations. The lives of individuals with both these disorders are marred by an increased risk of social isolation, bullying, unsteady relationships, employment difficulties and abuse. While different behavioural interventions have been tried to improve social functioning in these populations, there has been great variability in their success. Finally, we discuss different issues regarding social independence of these individuals; including employment, safety and decision making.
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Affiliation(s)
- A Jawaid
- Institute of Neuropathology, University Hospital Zurich, Zurich, Switzerland.
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