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Krauss MJ, Somerville E, Bollinger RM, Chen SW, Kehrer-Dunlap AL, Haxton M, Yan Y, Stark SL. Removing home hazards for older adults living in affordable housing: A stepped-wedge cluster-randomized trial. J Am Geriatr Soc 2024; 72:670-681. [PMID: 38103187 PMCID: PMC10947940 DOI: 10.1111/jgs.18706] [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: 06/13/2023] [Revised: 11/06/2023] [Accepted: 11/15/2023] [Indexed: 12/18/2023]
Abstract
BACKGROUND Falls are the leading cause of injury, disability, premature institutionalization, and injury-related mortality among older adults. Home hazard removal can effectively reduce falls in this population but is not implemented as standard practice. This study translated an evidence-based home hazard removal program (HARP) for delivery in low-income senior apartments to test whether the intervention would work in the "real world." METHODS From May 1, 2019 to December 31, 2020, a stepped-wedge cluster-randomized trial was used to implement the evidence-based HARP among residents with high fall risk in 11 low-income senior apartment buildings. Five clusters of buildings were randomly assigned an intervention allocation sequence. Three-level negative-binomial models (repeated measures nested within individuals, individuals nested within buildings) were used to compare fall rates between treatment and control conditions (excluding a crossover period), controlling for demographic characteristics, fall risk, and time period. RESULTS Among 656 residents, 548 agreed to screening, 435 were eligible (high fall risk), and 291 agreed to participate and received HARP. Participants were, on average, 72 years, 67% female, and 76% Black. Approximately 95.4% of fall prevention strategies and modifications implemented were still used 3 months later. The fall rate (per 1000 participant-days) was 4.87 during the control period and 4.31 during the posttreatment period. After adjusting for covariates and secular trend, there was no significant difference in fall rate (incidence rate ratio [IRR] 0.97, 95% CI 0.66-1.42). After excluding data collected during a hiatus in the intervention due to COVID-19, the reduction in fall rate was not significant (IRR 0.93, 95% CI 0.62-1.40). CONCLUSIONS Although HARP did not significantly reduce the rate of falls, this pragmatic study showed that the program was feasible to deliver in low-income senior housing and was acceptable among residents. There was effective collaboration between researchers and community agency staff.
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Affiliation(s)
- Melissa J Krauss
- Program in Occupational Therapy, Washington University School of Medicine in St. Louis, St. Louis, Missouri, USA
| | - Emily Somerville
- Program in Occupational Therapy, Washington University School of Medicine in St. Louis, St. Louis, Missouri, USA
| | - Rebecca M Bollinger
- Program in Occupational Therapy, Washington University School of Medicine in St. Louis, St. Louis, Missouri, USA
| | - Szu-Wei Chen
- Program in Occupational Therapy, Washington University School of Medicine in St. Louis, St. Louis, Missouri, USA
| | - Abigail L Kehrer-Dunlap
- Program in Occupational Therapy, Washington University School of Medicine in St. Louis, St. Louis, Missouri, USA
| | - Meghan Haxton
- Program in Occupational Therapy, Washington University School of Medicine in St. Louis, St. Louis, Missouri, USA
| | - Yan Yan
- Department of Surgery, Washington University School of Medicine in St. Louis, St. Louis, Missouri, USA
| | - Susan L Stark
- Program in Occupational Therapy, Washington University School of Medicine in St. Louis, St. Louis, Missouri, USA
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Katamba A, Gupta AJ, Turimumahoro P, Ochom E, Ggita JM, Nakasendwa S, Nanziri L, Musinguzi J, Hennein R, Sekadde M, Hanrahan C, Byaruhanga R, Yoeli E, Turyahabwe S, Cattamanchi A, Dowdy DW, Haberer JE, Armstrong-Hough M, Kiwanuka N, Davis JL. A user-centred implementation strategy for tuberculosis contact investigation in Uganda: Protocol for a stepped-wedge, cluster-randomised trial. Res Sq 2023:rs.3.rs-3121275. [PMID: 37461631 PMCID: PMC10350172 DOI: 10.21203/rs.3.rs-3121275/v1] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
Background Tuberculosis (TB) is among the leading causes of infectious death worldwide. Contact investigation is an evidence-based, World Health Organisation-endorsed intervention for timely TB diagnosis, treatment, and prevention but has not been widely and effectively implemented. Methods We are conducting a stepped-wedge, cluster-randomised, hybrid Type III implementation-effectiveness trial comparing a user-centred to a standard strategy for implementing TB contact investigation in 12 healthcare facilities in Uganda. The user-centred strategy consists of several client-focused components including 1) a TB-education booklet, 2) a contact-identification algorithm, 3) an instructional sputum-collection video, and 4) a community-health-rider service to transport clients, CHWs, and sputum samples, along with several healthcare-worker-focused components, including 1) collaborative improvement meetings, 2) regular audit-and-feedback reports, and 3) a digital group-chat application designed to develop a community of practice. Sites will cross from the standard to the user-centred strategy in six, eight-week transition steps following a randomly determined site-pairing scheme and timeline. The primary implementation outcome is the proportion of symptomatic close contacts completing TB evaluation within 60 days of TB treatment initiation by the index person with TB. The primary clinical effectiveness outcomes are the proportion of contacts diagnosed with and initiating active TB disease treatment and the proportion initiating TB preventative therapy within 60 days. We will assess outcomes from routine source documents using intention-to-treat analyses. We will also conduct nested mixed-methods studies of implementation fidelity and context and perform cost-effectiveness and impact modelling. The Makerere School of Public Health IRB (#554), the Uganda National Council for Science and Technology (#HS1720ES), and the Yale Institutional Review Board (#2000023199) approved the study with a waiver of informed consent for the main trial implementation-effectiveness outcomes. We will submit trial results for publication in a peer-reviewed journal and disseminate findings to local shareholders, including policymakers and representatives of affected communities. Discussion This pragmatic, quasi-experimental implementation trial will inform efforts to find and prevent undiagnosed persons with TB in high-burden setting using contact investigation. It will help assess the suitability of human-centred design and communities of practice for tailoring implementation strategies and sustain evidence-based interventions in low-and-middle-income countries. Trial registration number ClinicalTrials.gov Identifier: NCT05640648.
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Affiliation(s)
| | | | | | | | | | | | - Leah Nanziri
- Uganda Tuberculosis Implementation Research Consortium
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Moerbeek M. Optimal allocation to treatment sequences in individually randomized stepped-wedge designs with attrition. Clin Trials 2023; 20:242-251. [PMID: 36825509 PMCID: PMC10262341 DOI: 10.1177/17407745231154260] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
BACKGROUND/AIMS The stepped-wedge design has been extensively studied in the setting of the cluster randomized trial, but less so for the individually randomized trial. This article derives the optimal allocation of individuals to treatment sequences. The focus is on designs where all individuals start in the control condition and at the beginning of each time period some of them cross over to the intervention, so that at the end of the trial all of them receive the intervention. METHODS The statistical model that takes into account the nesting of repeated measurements within subjects is presented. It is also shown how possible attrition is taken into account. The effect of the intervention is assumed to be sustained so that it does not change after the treatment switch. An exponential decay correlation structure is assumed, implying that the correlation between any two time point decreases with the time lag. Matrix algebra is used to derive the relation between the allocation of units to treatment sequences and the variance of the treatment effect estimator. The optimal allocation is the one that results in smallest variance. RESULTS Results are presented for three to six treatment sequences. It is shown that the optimal allocation highly depends on the correlation parameter ρ and attrition rate r between any two adjacent time points. The uniform allocation, where each treatment sequence has the same number of individuals, is often not the most efficient. For 0 . 1 ≤ ρ ≤ 0 . 9 and r = 0 , 0 . 05 , 0 . 2 , its efficiency relative to the optimal allocation is at least 0.8. It is furthermore shown how a constrained optimal allocation can be derived in case the optimal allocation is not feasible from a practical point of view. CONCLUSION This article provides the methodology for designing individually randomized stepped-wedge designs, taking into account the possibility of attrition. As such it helps researchers to plan their trial in an efficient way. To use the methodology, prior estimates of the degree of attrition and intraclass correlation coefficient are needed. It is advocated that researchers clearly report the estimates of these quantities to help facilitate planning future trials.
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Affiliation(s)
- Mirjam Moerbeek
- Department of Methodology and Statistics, Utrecht University, Utrecht, The Netherlands
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Irvine MK, Levin B, Robertson MM, Penrose K, Carmona J, Harriman G, Braunstein SL, Nash D. PROMISE (Program Refinements to Optimize Model Impact and Scalability based on Evidence): a cluster-randomised, stepped-wedge trial assessing effectiveness of the revised versus original Ryan White Part A HIV Care Coordination Programme for patients with barriers to treatment in the USA. BMJ Open 2020; 10:e034624. [PMID: 32718922 PMCID: PMC7389516 DOI: 10.1136/bmjopen-2019-034624] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 11/29/2022] Open
Abstract
INTRODUCTION Growing evidence supports combining social, behavioural and biomedical strategies to strengthen the HIV care continuum. However, combination interventions can be resource-intensive and challenging to scale up. Research is needed to identify intervention components and delivery models that maximise uptake, engagement and effectiveness. In New York City (NYC), a multicomponent Ryan White Part A-funded medical case management intervention called the Care Coordination Programme (CCP) was launched at 28 agencies in 2009 in order to address barriers to care and treatment. Effectiveness estimates based on >7000 clients enrolled by April 2013 and their controls indicated modest CCP benefits over 'usual care' for short-term and long-term viral suppression, with substantial room for improvement. METHODS AND ANALYSIS Integrating evaluation findings and CCP service-provider and community-stakeholder input on modifications, the NYC Health Department packaged a Care Coordination Redesign (CCR) in a 2017 request for proposals. Following competitive re-solicitation, 17 of the original CCP-implementing agencies secured contracts. These agencies were randomised within matched pairs to immediate or delayed CCR implementation. Data from three 9-month periods (pre-implementation, partial implementation and full implementation) will be examined to compare CCR versus CCP effects on timely viral suppression (TVS, within 4 months of enrolment) among individuals with unsuppressed HIV viral load newly enrolling in the CCR/CCP. Based on current enrolment (n=933) and the pre-implementation outcome probability (TVS=0.54), the detectable effect size with 80% power is an OR of 2.75 (relative risk: 1.41). ETHICS AND DISSEMINATION This study was approved by the NYC Department of Health and Mental Hygiene Institutional Review Board (IRB, Protocol 18-009) and the City University of New York Integrated IRB (Protocol 018-0057) with a waiver of informed consent. Findings will be disseminated via publications, conferences, stakeholder meetings, and Advisory Board meetings with implementing agency representatives. TRIAL REGISTRATION NUMBER Registered with ClinicalTrials.gov under identifier: NCT03628287, V.2, 25 September 2019; pre-results.
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Affiliation(s)
- Mary K Irvine
- Bureau of HIV, New York City Department of Health and Mental Hygiene, Queens, New York, USA
| | - Bruce Levin
- Department of Biostatistics, Mailman School of Public Health (MSPH), Columbia University, New York, New York, USA
| | - McKaylee M Robertson
- Institute for Implementation Science in Population Health, Graduate School of Public Health and Health Policy, City University of New York, New York, New York, USA
| | - Katherine Penrose
- Bureau of HIV, New York City Department of Health and Mental Hygiene, Queens, New York, USA
| | - Jennifer Carmona
- Bureau of HIV, New York City Department of Health and Mental Hygiene, Queens, New York, USA
| | - Graham Harriman
- Bureau of HIV, New York City Department of Health and Mental Hygiene, Queens, New York, USA
| | - Sarah L Braunstein
- Bureau of HIV, New York City Department of Health and Mental Hygiene, Queens, New York, USA
| | - Denis Nash
- Institute for Implementation Science in Population Health, Graduate School of Public Health and Health Policy, City University of New York, New York, New York, USA
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Sacks E, Cohn J, Ochuka B, Mafaune H, Chadambuka A, Odhiambo C, Masaba R, Githuka G, Mahomva A, Mushavi A, Lemaire JF, Bianchi F, Machekano R. Impact of Routine Point-of-Care Versus Laboratory Testing for Early Infant Diagnosis of HIV: Results From a Multicountry Stepped-Wedge Cluster-Randomized Controlled Trial. J Acquir Immune Defic Syndr 2020; 84 Suppl 1:S5-S11. [PMID: 32520909 PMCID: PMC7302335 DOI: 10.1097/qai.0000000000002383] [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] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND Although the World Health Organization recommends HIV-exposed infants receive a 6-week diagnostic test, few receive results by 12 weeks. Point-of-care (POC) early infant diagnosis (EID) may improve timely diagnosis and treatment. This study assesses the impact of routine POC versus laboratory-based EID on return of results by 12 weeks of age. METHODS This was a cluster-randomized stepped-wedge trial in Kenya and Zimbabwe. In each country, 18 health facilities were randomly selected for inclusion and randomized to timing of POC implementation. FINDINGS Nine thousand five hundred thirty-nine infants received tests: 5115 laboratory-based and 4424 POC. In Kenya and Zimbabwe, respectively, caregivers were 1.29 times [95% confidence interval (CI): 1.27 to 1.30, P < 0.001] and 4.56 times (95% CI: 4.50 to 4.60, P < 0.001) more likely to receive EID results by 12 weeks of age with POC versus laboratory-based EID. POC significantly reduced the time between sample collection and return of results to caregiver by an average of 23.03 days (95% CI: 4.85 to 21.21, P < 0.001) in Kenya and 62.37 days (95% CI: 58.94 to 65.80, P < 0.001) in Zimbabwe. For HIV-infected infants, POC significantly increased the percentage initiated on treatment, from 43.2% to 79.6% in Zimbabwe, and resulted in a nonsignificant increase in Kenya from 91.7% to 100%. The introduction of POC EID also significantly reduced the time to antiretroviral therapy initiation by an average of 17.01 days (95% CI: 9.38 to 24.64, P < 0.001) in Kenya and 56.00 days (95% CI: 25.13 to 153.76, P < 0.001) in Zimbabwe. CONCLUSIONS POC confers significant advantage on the proportion of caregivers receiving timely EID results, and improves time to results receipt and treatment initiation for infected infants. Where laboratory-based EID systems are unable to deliver results to caregivers rapidly, POC should be implemented as part of an integrated testing system.
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Affiliation(s)
- Emma Sacks
- Department of Global Health, George Washington School of Public Health, Washington, DC
- Elizabeth Glaser Pediatric AIDS Foundation, Washington, DC
| | - Jennifer Cohn
- Elizabeth Glaser Pediatric AIDS Foundation, Geneva, Switzerland;
| | - Bernard Ochuka
- Elizabeth Glaser Pediatric AIDS Foundation, Nairobi, Kenya;
| | - Haurovi Mafaune
- Elizabeth Glaser Pediatric AIDS Foundation, Harare, Zimbabwe;
| | | | - Collins Odhiambo
- Elizabeth Glaser Pediatric AIDS Foundation, Nairobi, Kenya;
- African Society for Laboratory Medicine, Nairobi, Kenya;
| | - Rose Masaba
- Elizabeth Glaser Pediatric AIDS Foundation, Nairobi, Kenya;
| | | | | | | | | | - Flavia Bianchi
- Elizabeth Glaser Pediatric AIDS Foundation, Washington, DC
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Williams B, Hibberd C, Baldie D, Duncan EAS, Elders A, Maxwell M, Rattray JE, Cowie J, Strachan H, Jones MC. Evaluation of the impact of an augmented model of The Productive Ward: Releasing Time to Care on staff and patient outcomes: a naturalistic stepped-wedge trial. BMJ Qual Saf 2020; 30:27-37. [PMID: 32217699 PMCID: PMC7788216 DOI: 10.1136/bmjqs-2019-009821] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 11/20/2019] [Accepted: 02/27/2020] [Indexed: 11/24/2022]
Abstract
Background Improving the quality and efficiency of healthcare is an international priority. A range of complex ward based quality initiatives have been developed over recent years, perhaps the most influential programme has been Productive Ward: Releasing Time to Care. The programme aims to improve work processes and team efficiency with the aim of ‘releasing time’, which would be used to increase time with patients ultimately improving patient care, although this does not form a specific part of the programme. This study aimed to address this and evaluate the impact using recent methodological advances in complex intervention evaluation design. Method The objective of this study was to assess the impact of an augmented version of The Productive Ward: Releasing Time to Care on staff and patient outcomes. The design was a naturalistic stepped-wedge trial. The setting included fifteen wards in two acute hospitals in a Scottish health board region. The intervention was the Productive Ward: Releasing Time to Care augmented with practice development transformational change methods that focused on staff caring behaviours, teamwork and patient feedback. The primary outcomes included nurses’ shared philosophy of care, nurse emotional exhaustion, and patient experience of nurse communication. Secondary outcomes covered additional key dimensions of staff and patient experience and outcomes and frequency of emergency admissions for same diagnosis within 6 months of discharge. Results We recruited 691 patients, 177 nurses and 14 senior charge nurses. We found statistically significant improvements in two of the study’s three primary outcomes: patients’ experiences of nurse communication (Effect size=0.15, 95% CI; 0.05 to 0.24), and nurses’ shared philosophy of care (Effect size =0.42, 95% CI; 0.14 to 0.70). There were also significant improvements in secondary outcomes: patients’ overall rating of ward quality; nurses’ positive affect; and items relating to nursing team climate. We found no change in frequency of emergency admissions within six months of discharge. Conclusions We found evidence that the augmented version of The Productive Ward: Releasing Time to Care Intervention was successful in improving a number of dimensions of nurse experience and ward culture, in addition to improved patient experience and evaluations of the quality of care received. Despite these positive summary findings across all wards, intervention implementation appeared to vary between wards. By addressing the contextual factors, which may influence these variations, and tailoring some elements of the intervention, it is likely that greater improvements could be achieved. Trial registration number UKCRN 14195.
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Affiliation(s)
- Brian Williams
- School of Health and Social Care, Edinburgh Napier University, Edinburgh, UK
| | - Carina Hibberd
- Faculty of Health Sciences and Sport, University of Stirling, Stirling, UK
| | - Deborah Baldie
- Division of Nursing, Queen Margaret University Edinburgh, Musselburgh, East Lothian, UK
| | - Edward A S Duncan
- Nursing, Midwifery and Allied Health Professions Research Unit, University of Stirling, Stirling, UK
| | - Andrew Elders
- Nursing, Midwifery and Allied Health Professions Research Unit, Glasgow Caledonian University, Glasgow, UK
| | - Margaret Maxwell
- Nursing, Midwifery and Allied Health Professions Research Unit, University of Stirling, Stirling, UK
| | - Janice E Rattray
- School of Nursing and Health Sciences, University of Dundee, Dundee, UK
| | - Julie Cowie
- Nursing, Midwifery and Allied Health Professions Research Unit, Glasgow Caledonian University, Glasgow, UK
| | - Heather Strachan
- Nursing, Midwifery and Allied Health Professions Research Unit, University of Stirling, Stirling, UK
| | - Martyn C Jones
- School of Nursing and Health Sciences, University of Dundee, Dundee, UK
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Straßner C, Noest S, Preussler S, Jahn R, Ziegler S, Wahedi K, Bozorgmehr K. The impact of patient-held health records on continuity of care among asylum seekers in reception centres: a cluster-randomised stepped wedge trial in Germany. BMJ Glob Health 2019; 4:e001610. [PMID: 31423347 PMCID: PMC6688697 DOI: 10.1136/bmjgh-2019-001610] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 04/02/2019] [Revised: 07/04/2019] [Accepted: 07/08/2019] [Indexed: 12/02/2022] Open
Abstract
Introduction The aim of this study was to assess the effectiveness of a patient-held health record (PHR) for asylum seekers on the availability of health-related information. Methods An explorative, cluster-randomised stepped-wedge trial with reception centres as unit of randomisation was conducted. All reception centres (n=6) in two large administrative areas in South Germany with on-site health services were included. All physicians working at these centres were invited to participate in the study. The intervention was the implementation of a PHR. The primary outcome was the prevalence of written health-related information. Secondary outcomes were the physicians’ dissatisfaction with the available written information and the prevalence of missing health-related information. All outcomes were measured at the level of patient–physician contacts by means of a standardised questionnaire, and analysed in logistic multi-level regression models. Results We obtained data on 2308 patient–physician contacts. The presence of the PHR increased the availability of health-related information (adjusted OR (aOR), 20.3, 95% CI: 12.74 to 32.33), and tended to reduce missing essential information (aOR 0.71, 95% CI: 0.39 to 1.26) and physicians’ dissatisfaction with available information (aOR 0.5, 95% CI: 0.24 to 1.04). The availability of health-related information in the post-intervention period was higher (aOR 4.22, 95% CI: 2.64 to 6.73), missing information (aOR 0.89, 95% CI: 0.42 to 1.88) and dissatisfaction (aOR 0.43, 95% CI: 0.16 to 1.14) tended to be lower compared with the pre-intervention period. Conclusions Healthcare planners should consider introducing PHRs in reception centres or comparable facilities. Future research should focus on the impact of PHRs on clinical outcomes and on intersectoral care. Trial registration ISRCTN13212716. Registered 24 November 2016. Retrospectively registered. http://www.isrctn.com/ISRCTN13212716
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Affiliation(s)
- Cornelia Straßner
- Department of General Practice and Health Services Research, Social Determinants, Equity & Migration Group, University Hospital Heidelberg, Heidelberg, Germany
| | - Stefan Noest
- Department of General Practice and Health Services Research, Social Determinants, Equity & Migration Group, University Hospital Heidelberg, Heidelberg, Germany
| | - Stella Preussler
- Institute of Medical Biometry and Informatics, University Hospital Heidelberg, Heidelberg, Germany
| | - Rosa Jahn
- Department of General Practice and Health Services Research, Social Determinants, Equity & Migration Group, University Hospital Heidelberg, Heidelberg, Germany
| | - Sandra Ziegler
- Department of General Practice and Health Services Research, Social Determinants, Equity & Migration Group, University Hospital Heidelberg, Heidelberg, Germany
| | - Katharina Wahedi
- Department of General Practice and Health Services Research, Social Determinants, Equity & Migration Group, University Hospital Heidelberg, Heidelberg, Germany
| | - Kayvan Bozorgmehr
- Department of General Practice and Health Services Research, Social Determinants, Equity & Migration Group, University Hospital Heidelberg, Heidelberg, Germany.,Department of Population Medicine and Health Services Research, University of Bielefeld, School of Public Health, Bielefeld, Germany
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Lenguerrand E, Winter C, Siassakos D, MacLennan G, Innes K, Lynch P, Cameron A, Crofts J, McDonald A, McCormack K, Forrest M, Norrie J, Bhattacharya S, Draycott T. Effect of hands-on interprofessional simulation training for local emergencies in Scotland: the THISTLE stepped-wedge design randomised controlled trial. BMJ Qual Saf 2019; 29:122-134. [PMID: 31302601 PMCID: PMC7045781 DOI: 10.1136/bmjqs-2018-008625] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [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] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 06/19/2019] [Accepted: 06/24/2019] [Indexed: 11/03/2022]
Abstract
OBJECTIVE To assess whether the implementation of an intrapartum training package (PROMPT (PRactical Obstetric Multi-Professional Training)) across a health service reduced the proportion of term babies born with Apgar score <7 at 5 min (<75mins). DESIGN Stepped-wedge cluster randomised controlled trial. SETTING Twelve randomised maternity units with ≥900 births/year in Scotland. Three additional units were included in a supplementary analysis to assess the effect across Scotland. The intervention commenced in March 2014 with follow-up until September 2016. INTERVENTION The PROMPT training package (Second edition), with subsequent unit-level implementation of PROMPT courses for all maternity staff. MAIN OUTCOME MEASURES The primary outcome was the proportion of term babies with Apgar<75mins. RESULTS 87 204 eligible births (99.2% with an Apgar score), of which 1291 infants had an Apgar<75mins were delivered in the 12 randomised maternity units. Two units did not implement the intervention. The overall Apgar<75mins rate observed in the 12 randomised units was 1.49%, increasing from 1.32% preintervention to 1.59% postintervention. Once adjusted for a secular time trend, the 'intention-to-treat' analysis indicated a moderate but non-significant reduction in the rate of term babies with an Apgar scores <75mins following PROMPT training (OR=0.79 95%CI(0.63 to 1.01)). However, some units implemented the intervention earlier than their allocated step, whereas others delayed the intervention. The content and authenticity of the implemented intervention varied widely at unit level. When the actual date of implementation of the intervention in each unit was considered in the analysis, there was no evidence of improvement (OR=1.01 (0.84 to 1.22)). No intervention effect was detected by broadening the analysis to include all 15 large Scottish maternity units. Units with a history of higher rates of Apgar<75mins maintained higher Apgar rates during the study (OR=2.09 (1.28 to 3.41)) compared with units with pre-study rates aligned to the national rate. CONCLUSIONS PROMPT training, as implemented, had no effect on the rate of Apgar <75mins in Scotland during the study period. Local implementation at scale was found to be more difficult than anticipated. Further research is required to understand why the positive effects observed in other single-unit studies have not been replicated in Scottish maternity units, and how units can be best supported to locally implement the intervention authentically and effectively. TRIAL REGISTRATION NUMBER ISRCTN11640515.
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Affiliation(s)
- Erik Lenguerrand
- Translational Health Sciences, University of Bristol, Bristol, UK
| | - Cathy Winter
- Department of Women's Health and Children's Health, Southmead Hospital, North Bristol NHS Trust, Westbury on Trym, UK
| | | | - Graeme MacLennan
- Centre for Healthcare Randomised Trials, Health Services Research Unit, University of Aberdeen, Aberdeen, UK
| | - Karen Innes
- Centre for Healthcare Randomised Trials, Health Services Research Unit, University of Aberdeen, Aberdeen, UK
| | - Pauline Lynch
- Maternity Unit, Ninewells Hospital and Medical School, NHS Tayside, Dundee, UK
| | - Alan Cameron
- Ian Donald Fetal Medicine Centre, Queen Elizabeth University Hospital, NHS Greater Glasgow and Clyde, Glasgow, UK
| | - Joanna Crofts
- Department of Women's Health and Children's Health, Southmead Hospital, North Bristol NHS Trust, Westbury on Trym, UK
| | - Alison McDonald
- Centre for Healthcare Randomised Trials, Health Services Research Unit, University of Aberdeen, Aberdeen, UK
| | - Kirsty McCormack
- Centre for Healthcare Randomised Trials, Health Services Research Unit, University of Aberdeen, Aberdeen, UK
| | - Mark Forrest
- Centre for Healthcare Randomised Trials, Health Services Research Unit, University of Aberdeen, Aberdeen, UK
| | - John Norrie
- Edinburgh Clinical Trials Unit, Centre for Population Health Sciences, Usher Institute, University of Edinburgh, Edinburgh, UK
| | | | - Tim Draycott
- Translational Health Sciences, University of Bristol, Bristol, UK
- Department of Women's Health and Children's Health, Southmead Hospital, North Bristol NHS Trust, Westbury on Trym, UK
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Abstract
OBJECTIVES To investigate the extent to which cluster sizes vary in stepped-wedge cluster randomised trials (SW-CRT) and whether any variability is accounted for during the sample size calculation and analysis of these trials. SETTING Any, not limited to healthcare settings. PARTICIPANTS Any taking part in an SW-CRT published up to March 2016. PRIMARY AND SECONDARY OUTCOME MEASURES The primary outcome is the variability in cluster sizes, measured by the coefficient of variation (CV) in cluster size. Secondary outcomes include the difference between the cluster sizes assumed during the sample size calculation and those observed during the trial, any reported variability in cluster sizes and whether the methods of sample size calculation and methods of analysis accounted for any variability in cluster sizes. RESULTS Of the 101 included SW-CRTs, 48% mentioned that the included clusters were known to vary in size, yet only 13% of these accounted for this during the calculation of the sample size. However, 69% of the trials did use a method of analysis appropriate for when clusters vary in size. Full trial reports were available for 53 trials. The CV was calculated for 23 of these: the median CV was 0.41 (IQR: 0.22-0.52). Actual cluster sizes could be compared with those assumed during the sample size calculation for 14 (26%) of the trial reports; the cluster sizes were between 29% and 480% of that which had been assumed. CONCLUSIONS Cluster sizes often vary in SW-CRTs. Reporting of SW-CRTs also remains suboptimal. The effect of unequal cluster sizes on the statistical power of SW-CRTs needs further exploration and methods appropriate to studies with unequal cluster sizes need to be employed.
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Affiliation(s)
| | - Tom Morris
- Leicester Clinical Trials Unit, University of Leicester, Leicester, UK
| | - Laura Gray
- Department of Health Sciences, University of Leicester, Leicester, UK
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Naser AM, Unicomb L, Doza S, Ahmed KM, Rahman M, Uddin MN, Quraishi SB, Selim S, Shamsudduha M, Burgess W, Chang HH, Gribble MO, Clasen TF, Luby SP. Stepped-wedge cluster-randomised controlled trial to assess the cardiovascular health effects of a managed aquifer recharge initiative to reduce drinking water salinity in southwest coastal Bangladesh: study design and rationale. BMJ Open 2017; 7:e015205. [PMID: 28864689 PMCID: PMC5588995 DOI: 10.1136/bmjopen-2016-015205] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [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: 01/13/2023] Open
Abstract
INTRODUCTION Saltwater intrusion and salinisation have contributed to drinking water scarcity in many coastal regions globally, leading to dependence on alternative sources for water supply. In southwest coastal Bangladesh, communities have few options but to drink brackish groundwater which has been associated with high blood pressure among the adult population, and pre-eclampsia and gestational hypertension among pregnant women. Managed aquifer recharge (MAR), the purposeful recharge of surface water or rainwater to aquifers to bring hydrological equilibrium, is a potential solution for salinity problem in southwest coastal Bangladesh by creating a freshwater lens within the brackish aquifer. Our study aims to evaluate whether consumption of MAR water improves human health, particularly by reducing blood pressure among communities in coastal Bangladesh. METHODS AND ANALYSIS The study employs a stepped-wedge cluster-randomised controlled community trial design in 16 communities over five monthly visits. During each visit, we will collect data on participants' source of drinking and cooking water and measure the salinity level and electrical conductivity of household stored water. At each visit, we will also measure the blood pressure of participants ≥20 years of age and pregnant women and collect urine samples for urinary sodium and protein measurements. We will use generalised linear mixed models to determine the association of access to MAR water on blood pressure of the participants. ETHICS AND DISSEMINATION The study protocol has been reviewed and approved by the Institutional Review Boards of the International Centre for Diarrheal Disease Research, Bangladesh (icddr,b). Informed written consent will be taken from all the participants. This study is funded by Wellcome Trust, UK. The study findings will be disseminated to the government partners, at research conferences and in peer-reviewed journals. TRIAL REGISTRATION NUMBER NCT02746003; Pre-results.
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Affiliation(s)
- Abu Mohd Naser
- Department of Environmental Health Sciences, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Leanne Unicomb
- Environmental Health & Interventions Unit, Enteric and Respiratory Infections Program, Infectious Disease Division, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Solaiman Doza
- Environmental Health & Interventions Unit, Enteric and Respiratory Infections Program, Infectious Disease Division, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | | | - Mahbubur Rahman
- Environmental Health & Interventions Unit, Enteric and Respiratory Infections Program, Infectious Disease Division, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Mohammad Nasir Uddin
- Environmental Health & Interventions Unit, Enteric and Respiratory Infections Program, Infectious Disease Division, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Shamshad B Quraishi
- Analytical Chemistry Laboratory, Atomic Energy Centre, Bangladesh Atomic EnergyCommission, Dhaka, Bangladesh
| | - Shahjada Selim
- Department of Endocrinology & Metabolism, Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh
| | - Mohammad Shamsudduha
- Institute for Risk and Disaster Reduction, Departmentof Geography, University College London, London, UK
| | - William Burgess
- Department of Earth Sciences, University College London, London, UK
| | - Howard H Chang
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Matthew O Gribble
- Department of Environmental Health Sciences, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Thomas F Clasen
- Department of Environmental Health Sciences, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Stephen P Luby
- Stanford Woods Institute for the Environment & Freeman Spogli Institute for International Studies, Stanford University, Stanford, California, USA
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Abstract
INTRODUCTION The stepped-wedge cluster randomised trial (SW-CRT) is a complex design, for which many decisions about key design parameters must be made during the planning. These include the number of steps and the duration of time needed to embed the intervention. Feasibility studies are likely to be useful for informing these decisions and increasing the likelihood of the main trial's success. However, the number of feasibility studies being conducted for SW-CRTs is currently unknown. This review aims to establish the number of feasibility studies being conducted for SW-CRTs and determine which feasibility issues are commonly investigated. METHODS AND ANALYSIS Fully published feasibility studies for SW-CRTs will be identified, according to predefined inclusion criteria, from searches conducted in Ovid MEDLINE, Scopus, Embase and PsycINFO. To also identify and gain information on unpublished feasibility studies the following will be contacted: authors of published SW-CRTs (identified from the most recent systematic reviews); contacts for registered SW-CRTs (identified from clinical trials registries); lead statisticians of UK registered clinical trials units and researchers known to work in the area of SW-CRTs.Data extraction will be conducted independently by two reviewers. For the fully published feasibility studies, data will be extracted on the study characteristics, the rationale for the study, the process for determining progression to a main trial, how the study informed the main trial and whether the main trial went ahead. The researchers involved in the unpublished feasibility studies will be contacted to elicit the same information.A narrative synthesis will be conducted and provided alongside a descriptive analysis of the study characteristics. ETHICS AND DISSEMINATION This review does not require ethical approval, as no individual patient data will be used. The results of this review will be published in an open-access peer-reviewed journal.
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Affiliation(s)
| | - Karla Hemming
- Institute of Applied Health Research, University of Birmingham, Birmingham, UK
| | - Helen C Eborall
- Department of Health Sciences, University of Leicester, Leicester, UK
| | - Laura J Gray
- Department of Health Sciences, University of Leicester, Leicester, UK
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