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Brimdyr K, Stevens J, Svensson K, Blair A, Turner-Maffei C, Grady J, Bastarache L, Al Alfy A, Crenshaw JT, Giugliani ERJ, Ewald U, Haider R, Jonas W, Kagawa M, Lilliesköld S, Maastrup R, Sinclair R, Swift E, Takahashi Y, Cadwell K. Skin-to-skin contact after birth: developing a research and practice guideline. Acta Paediatr 2023. [PMID: 37166443 DOI: 10.1111/apa.16842] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/05/2023] [Accepted: 05/10/2023] [Indexed: 05/12/2023]
Abstract
AIM Skin-to-skin contact immediately after birth is recognized as an evidence-based best practice and an acknowledged contributor to improved short- and long-term health outcomes including decreased infant mortality. However, implementation and definition of skin-to-skin contact is inconsistent in both practice and research studies. This project utilized the World Health Organization guideline process to clarify best practice and improve the consistency of application. METHODS The rigorous guideline development process combines a systematic review with acumen and judgement of experts with a wide range of credentials and experience. RESULTS The developed guideline received "strong recommendation" from the Expert Panel. The result concluded that there was a high level of confidence in the evidence and that the practice is not resource intensive. Research gaps were identified and areas for continued work delineated. CONCLUSION The World Health Organization guideline development process reached the conclusion immediate, continuous, uninterrupted skin-to-skin contact should be the standard of care for all mothers and all babies (from 1000 grams with experienced staff if assistance is needed), after all modes of birth. Delaying non-essential routine care in favor of uninterrupted skin-to-skin contact after birth has been shown to be safe and allows for progression of newborns through their instinctive behaviors.
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Affiliation(s)
| | - Jeni Stevens
- New South Wales Health, Western Sydney University
| | | | | | | | | | | | | | | | | | - Uwe Ewald
- Department of Women´s and Children´s Health, Uppsala University
| | - Rukhsana Haider
- Training and Assistance for Health and Nutrition Foundation (TAHN)
| | | | - Mike Kagawa
- Makerere University College of Health Sciences
| | - Siri Lilliesköld
- Department of Women's and Children's Health Karolinska Institutet, Stockholm, Sweden
- Department of Neonatology, Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
| | | | | | - Emma Swift
- University of Iceland, Reykjavik Birth Center
| | - Yuki Takahashi
- Nursing Sciences, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine
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Sumpter C, Bain M, McCartney G, Blair A, Stockton D, Frank J. Public health priority setting on a national scale: The Scottish experience. Public Health in Practice 2022. [DOI: 10.1016/j.puhip.2022.100327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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Tate W, Walker M, Sweetman E, Helliwell A, Peppercorn K, Edgar C, Blair A, Chatterjee A. Molecular Mechanisms of Neuroinflammation in ME/CFS and Long COVID to Sustain Disease and Promote Relapses. Front Neurol 2022; 13:877772. [PMID: 35693009 PMCID: PMC9174654 DOI: 10.3389/fneur.2022.877772] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [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: 02/17/2022] [Accepted: 04/19/2022] [Indexed: 12/16/2022] Open
Abstract
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) is a disease now well-documented as having arisen commonly from a viral infection, but also from other external stressors, like exposure to agricultural chemicals, other types of infection, surgery, or other severe stress events. Research has shown these events produce a systemic molecular inflammatory response and chronic immune activation and dysregulation. What has been more difficult to establish is the hierarchy of the physiological responses that give rise to the myriad of symptoms that ME/CFS patients experience, and why they do not resolve and are generally life-long. The severity of the symptoms frequently fluctuates through relapse recovery periods, with brain-centered symptoms of neuroinflammation, loss of homeostatic control, "brain fog" affecting cognitive ability, lack of refreshing sleep, and poor response to even small stresses. How these brain effects develop with ME/CFS from the initiating external effector, whether virus or other cause, is poorly understood and that is what our paper aims to address. We propose the hypothesis that following the initial stressor event, the subsequent systemic pathology moves to the brain via neurovascular pathways or through a dysfunctional blood-brain barrier (BBB), resulting in chronic neuroinflammation and leading to a sustained illness with chronic relapse recovery cycles. Signaling through recognized pathways from the brain back to body physiology is likely part of the process by which the illness cycle in the peripheral system is sustained and why healing does not occur. By contrast, Long COVID (Post-COVID-19 condition) is a very recent ME/CFS-like illness arising from the single pandemic virus, SARS-CoV-2. We believe the ME/CFS-like ongoing effects of Long COVID are arising by very similar mechanisms involving neuroinflammation, but likely with some unique signaling, resulting from the pathology of the initial SARS-CoV-2 infection. The fact that there are very similar symptoms in both ongoing diseases, despite the diversity in the nature of the initial stressors, supports the concept of a similar dysfunctional CNS component common to both.
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Affiliation(s)
- Warren Tate
- Department of Biochemistry, University of Otago, Dunedin, New Zealand
- Brain Health Research Centre, University of Otago, Dunedin, New Zealand
| | - Max Walker
- Department of Biochemistry, University of Otago, Dunedin, New Zealand
| | - Eiren Sweetman
- Department of Biochemistry, University of Otago, Dunedin, New Zealand
- School of Biological Sciences, Victoria University of Wellington, Wellington, New Zealand
| | - Amber Helliwell
- Department of Biochemistry, University of Otago, Dunedin, New Zealand
| | - Katie Peppercorn
- Department of Biochemistry, University of Otago, Dunedin, New Zealand
- Brain Health Research Centre, University of Otago, Dunedin, New Zealand
| | - Christina Edgar
- Department of Biochemistry, University of Otago, Dunedin, New Zealand
| | - Anna Blair
- Graduate School of Health, University of Technology Sydney, Sydney, NSW, Australia
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Affiliation(s)
- G. Cock
- Department of Large Animal Clinical Sciences University of Florida College of Veterinary Medicine Gainesville FloridaUSA
| | - M. J. B. Felippe
- Equine Immunology Laboratory Cornell University Ithaca New YorkUSA
| | - A. Blair
- Ocala Equine Hospital Ocala Florida USA
| | - S. DeNotta
- Department of Large Animal Clinical Sciences University of Florida College of Veterinary Medicine Gainesville FloridaUSA
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Abstract
Background: According to the Intergovernmental Panel on Climate Change, Greenhouse Gas emissions must decline by around 45% by 2030 and reach net zero in 2050. Biofuels, solar, and wind energy are obvious choices for reduction of the 75% of emissions from the energy sector (including transportation), but making reductions in the remaining 25%, the food sector, is more of a challenge. One way is to change our diets to increase low-carbon food alternatives. Objective: We chose to examine the impact of powdered baby formula products. The aim of this study is to compute a minimal estimate of green house gas (GHG) emissions for powdered baby formula products sold in North America comprising Canada, Mexico, and the United States. Results: We found that in 2016, the North America Greenhouse Gas emissions (in tons of CO2 eq.) attributable to sales of powdered formula for Canada was 70,256, for Mexico, 435,820, and for the United States, 655,956. The North American per capita emissions based on infants and toddlers from birth to 36 months of age in 2016 was, at a minimum, 59.06 kg of CO2 eq. Conclusion: The environmental and Greenhouse Gas impact of powdered baby formula, and related hazards arising from climate change, can be a relevant factor for health care providers in their advice to families on infant feeding. This study makes an innovative and potentially useful addition to the emerging evidence on this issue and should be considered when developing and funding infant and young child feeding policies and supportive programs.
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Affiliation(s)
- Karin Cadwell
- Healthy Children Project, East Sandwich, Massachusetts, USA
| | - Anna Blair
- Healthy Children Project, East Sandwich, Massachusetts, USA
| | | | - Maret Gabel
- Healthy Children Project, East Sandwich, Massachusetts, USA
| | - Kajsa Brimdyr
- Healthy Children Project, East Sandwich, Massachusetts, USA
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Blair A, MacGregor E, Lee N. Childhood Obesity and Breastfeeding Rates in Pennsylvania Counties-Spatial Analysis of the Lactation Support Landscape. Front Public Health 2020; 8:123. [PMID: 32426314 PMCID: PMC7212427 DOI: 10.3389/fpubh.2020.00123] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 03/26/2020] [Indexed: 11/23/2022] Open
Abstract
Childhood obesity is a global public health issue. As the prevalence of childhood obesity continues to rise, identification of potential interventions by public health policy makers, and health care providers is imperative. Breastfeeding, the most optimal method of infant feeding, has been demonstrated to protect against childhood obesity. Lactation support providers (LSPs) play a key role in providing education, care, and support to families considering a feeding choice. Access to professional lactation care increases breastfeeding initiation, exclusivity, and duration rates, regardless of the credential that the LSP holds. The aims of the current study were to examine the relationship between childhood obesity and breastfeeding rates in Pennsylvania (PA) counties; to examine the relationship between geographic access to professional LSPs in PA counties and breastfeeding rates; and to examine the relationship between geographic access to professional LSPs and childhood obesity in PA counties. Data were collected on 617 professional LSPs in 67 PA counties. There are 608 Certified Lactation Counselors (CLCs) and 144 International Board Certified Lactation Consultants (IBCLCs) in PA. County-level breastfeeding rates, childhood obesity rates, and the number of CLCs and IBCLCs were tested for significance at the p < 0.01 level using a two-tailed significance test and bivariate Pearson's correlation. The results show a significant, inverse relationship between breastfeeding rates and childhood obesity prevalence at the county level, p < 0.01. There is also a significant, inverse relationship between the number of CLCs and the number of all professional LSPs and childhood obesity rates at the county level, p < 0.01. Thus, the availability of breastfeeding support is significantly related to breastfeeding rates and inversely related to childhood obesity rates across Pennsylvania.
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Affiliation(s)
- Anna Blair
- Healthy Children Project, East Sandwich, MA, United States
| | - Ellie MacGregor
- Academy of Lactation Policy and Practice, Forestdale, MA, United States
| | - Nikki Lee
- Private Practice Lactation Consultant, Elkins Park, PA, United States
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Alsabia S, Mortensen C, Theberge A, Blair A, Wendel N, Biffinger J. Controlling the Bioluminescence Output from
Shewanella woodyi
using Soluble Electron Acceptors. FASEB J 2020. [DOI: 10.1096/fasebj.2020.34.s1.03921] [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: 11/11/2022]
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Rusiecki JA, Denic-Roberts H, Byrne C, Cash J, Raines CF, Brinton LA, Zahm SH, Mason T, Bonner MR, Blair A, Hoover R. Serum concentrations of DDE, PCBs, and other persistent organic pollutants and mammographic breast density in Triana, Alabama, a highly exposed population. Environ Res 2020; 182:109068. [PMID: 31918312 PMCID: PMC7032000 DOI: 10.1016/j.envres.2019.109068] [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] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 12/18/2019] [Accepted: 12/19/2019] [Indexed: 06/10/2023]
Abstract
INTRODUCTION Although some persistent organic pollutants (POPs) are considered human carcinogens, results from studies evaluating exposures and breast cancer risk have been inconsistent, potentially related to varying ages at exposure. Additionally, few studies evaluated the association between POPs exposure and mammographic breast density (MBD), an intermediate biomarker of breast cancer risk. We carried out a cross-sectional study to investigate associations between serum POPs concentrations and MBD measured in 1998 in female residents of Triana, Alabama, in a predominately African American population with high POPs exposures, particularly to p,p'-DDT (1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane). METHODS We measured lipid-adjusted serum concentrations (ng/g lipid) of p,p'-DDT and its main metabolite p,p'-DDE (1,1-dichloro-2,2-bis(p-chlorophenyl)ethylene), polychlorinated biphenyls (PCBs), β-hexachlorocyclohexane (β-HCCH), heptachlor epoxide, oxychlordane, trans-nonachlor, mirex, and aldrin for each woman in our study (n = 210). We also measured two MBD metrics, percent MBD (%MBD) and area of MBD (aMBD). Using adjusted Spearman correlation coefficients (rs) we evaluated correlations between %MBD and aMBD with individual POPs in the overall population and by age group (19-40, 41-54, and 55-91 years) and also estimated adjusted mean measures of MBD with 95% confidence intervals across tertiles of analytes using generalized linear models (GLM). We calculated p-values for multiplicative interaction by age group using GLM. Additional analyses excluded women with current hormone replacement therapy (HRT) use and evaluated early-life exposure (prior to age 18) during the heaviest contamination period in Triana (1947-90). RESULTS Among all women, we found no correlation between p,p'-DDE and %MBD, but after age stratification and exclusion of HRT users, there was a suggestion of a difference by age group, with younger women having a weak positive correlation (rs = 0.12, p = 0.37) and older women having a weak negative correlation (rs = -0.12, p = 0.43); pinteraction = 0.06. In contrast, PCBs were weakly positively correlated with %MBD among all women, with the correlation magnitudes increasing after excluding current HRT users (rs-total PCBs = 0.17, p = 0.03). After age stratification and exclusion of HRT users, correlations for PCBs were higher among younger and middle-age women, with only a handful of these correlations being statistically significant. For β-HCCH, the strongest finding was a negative correlation among older women (rs = -0.26, p = 0.07). Correlations were positive predominantly in the younger age group for heptachlor epoxide (rs = 0.27, p = 0.04), oxychlordane (rs = 0.35, p = 0.006), and trans-nonachlor (rs = 0.37, p = 0.003), and largely null for the middle and older age groups; pinteraction range: 0.03-0.05. Similar patterns were found in GLM analyses using tertiles of exposure and aMBD as the metric for MBD. Women exposed during the heaviest chemical contamination period in Triana prior to age 18 had positive correlations between %MBD and PCBs, heptachlor epoxide, mirex, oxychlordane, and trans-nonachlor. CONCLUSIONS In this population, despite high exposures to p,p'-DDT and thus high serum concentrations of its main metabolite, p,p'-DDE, we did not find strong evidence of a positive association with MBD. In fact, there was some evidence of a negative association among older women for p,p'-DDE; a similar pattern was found for β-HCCH. However, younger women with higher serum levels of PCBs, heptachlor epoxide, oxychlordane, and trans-nonachlor, who were likely exposed in early life, had higher MBD. These findings should be replicated in larger studies.
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Affiliation(s)
- J A Rusiecki
- Department of Preventive Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD, USA.
| | - H Denic-Roberts
- Department of Preventive Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD, USA; Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD, USA
| | - C Byrne
- Department of Preventive Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
| | - J Cash
- University of Alabama in Huntsville, College of Nursing, Huntsville, AL, USA
| | - C F Raines
- University of Alabama in Huntsville, College of Nursing, Huntsville, AL, USA
| | | | - S H Zahm
- Sheila Zahm Consulting, Formerly at National Cancer Institute, Division of Cancer Epidemiology and Genetics, Bethesda, MD, USA
| | - T Mason
- University of South Florida, College of Public Health, Tampa, FL, USA
| | - M R Bonner
- Department of Epidemiology and Environmental Health, State University of New York, Buffalo, NY, USA
| | - A Blair
- National Cancer Institute Retired, Scientist Emeritus, USA
| | - R Hoover
- National Cancer Institute, Division of Cancer Epidemiology and Genetics, Bethesda, MD, USA
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Affiliation(s)
- R. Johnson
- University of Washington Division of Nephrology, Rm-11 Seattle, WA 98195, USA
| | - A. Blair
- University of Washington Division of Nephrology, Rm-11 Seattle, WA 98195, USA
| | - S. Ahmad
- University of Washington Division of Nephrology, Rm-11 Seattle, WA 98195, USA
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10
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Fehrman C, Grubbs K, Underwood K, Blair A. Impact of Two Levels of Low Voltage Electrical Stimulation on Beef Quality. Meat and Muscle Biology 2019. [DOI: 10.22175/mmb.10771] [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: 11/03/2022] Open
Abstract
ObjectivesElectrical stimulation (ES) prior to rigor mortis accelerates postmortem glycolysis, resulting in rapid postmortem depletion of glycogen and can partially simulate the physiological conditions created by stress. The objective of this study was to evaluate the influence of two levels of high voltage electrical stimulation on incidence of dark cutters, temperature decline, muscle pH, glycolytic potential, and meat quality.Materials and MethodsFifty beef carcasses were chosen at 3 collection times over 7 h; 14 at collection 1, 18 at collection 2, and 18 at collection 3. One side of each carcass received either 40 (E40) or 80 (E80) volts of ES. The paired side of each carcass served as a control and did not receive ES (C40 or C80). Temperature data loggers were placed into the sirloin of both sides of the first 4 carcasses from each collection period to monitor temperature decline. Muscle pH was measured on the longissimus muscle at 1, 12, 24, and 72 h postmortem. Steaks were fabricated from the longissimus lumborum for determination of WBSF, cook loss, glycolytic potential (GP), and objective color. Data were analyzed using PROC Mixed of SAS with fixed effect of treatment and random effect of carcass. Analysis of carcass temperature decline was conducted with control carcasses pooled to one treatment to better evaluate the effect of ES on temperature decline. Temperature data, WBSF, and pH were considered repeated measures. Significance was determined at P < 0.05.ResultsNo dark cutting carcasses were observed in this study. A time by treatment interaction was observed for carcass temperature decline (P < 0.001) where ES sides stayed warmer for longer than control sides. A treatment by time interaction was observed for pH decline (P < 0.001) with C40 sides having an increased pH at 1 h postmortem compared to E80 sides. Carcass characteristics did not differ among treatments (P > 0.05). A treatment effect was observed for WBSF values (P = 0.006) with ES sides being more tender than C40 sides. A day effect was observed (P = 0.009) with steaks aged for 7 d being less tender than steaks aged for 14 d (P = 0.007). Cook loss did not differ among treatments (P > 0.05). A difference in cook loss by aging period (P = 0.014) was observed. Steaks aged for 3 d had less cook loss than steaks aged for 7 d (17.3% vs. 18.8% respectively; (P = 0.017) and tended to have less cook loss than steaks aged for 14 d (18.3%; P = 0.065). Glucose, lactate, and overall GP measurements did not differ among treatments (P > 0.05). Objective L* values for E80 sides were greater than C40 (P = 0.0009) and C80 (P < 0.0001), and E40 values were greater than C40 (P < 0.0001). Objective a* values for E80 sides were greater than C40 (P = 0.002) and C80 (P = 0.035), and E40 values were greater than C40 (P < 0.0001). Objective b* values were greater for E80 than C80 (P = 0.005) and C40 (P = 0.001), and E40 was greater than C40 (P < 0.0001).ConclusionThese data suggest ES does not influence the incidence of dark cutters. However, utilization of an ES system can improve tenderness of steaks in addition to producing brighter, more red beef products. The results of this study indicate that similar quality characteristics can be obtained using 40 or 80 V of ES. Therefore, beef packing plants applying ES to carcasses may be able to reduce voltage without sacrificing quality.
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Affiliation(s)
- C. Fehrman
- South Dakota State University Animal Science
| | - K. Grubbs
- South Dakota State University Animal Science
| | | | - A. Blair
- South Dakota State University Animal Science
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11
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Jung W, Park T, Kim Y, Park H, Han Y, He J, Wolfgang CL, Blair A, Rashid MF, Kluger MD, Su GH, Chabot JA, Yang CY, Lou W, Valente R, Del Chiaro M, Shyr YM, Wang SE, van Huijgevoort NCM, Besselink MG, Yang Y, Kim H, Kwon W, Kim SW, Jang JY. Validation of a nomogram to predict the risk of cancer in patients with intraductal papillary mucinous neoplasm and main duct dilatation of 10 mm or less. Br J Surg 2019; 106:1829-1836. [PMID: 31441048 DOI: 10.1002/bjs.11293] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 05/17/2019] [Accepted: 06/04/2019] [Indexed: 12/26/2022]
Abstract
BACKGROUND Intraductal papillary mucinous neoplasm (IPMN) is premalignant pancreatic lesion. International guidelines offer limited predictors of individual risk. A nomogram to predict individual IPMN malignancy risk was released, with good diagnostic performance based on a large cohort of Asian patients with IPMN. The present study validated a nomogram to predict malignancy risk and invasiveness of IPMN using both Eastern and Western cohorts. METHODS Clinicopathological and radiological data from patients who underwent pancreatic resection for IPMN at four centres each in Eastern and Western countries were collected. After excluding patients with missing data for at least one malignancy predictor in the nomogram (main pancreatic duct diameter, cyst size, presence of mural nodule, serum carcinoembryonic antigen and carbohydrate antigen (CA) 19-9 levels, and age). RESULTS In total, data from 393 patients who fit the criteria were analysed, of whom 265 were from Eastern and 128 from Western institutions. Although mean age, sex, log value of serum CA19-9 level, tumour location, main duct diameter, cyst size and presence of mural nodule differed between the Korean/Japanese, Eastern and Western cohorts, rates of malignancy and invasive cancer did not differ significantly. Areas under the receiver operating characteristic (ROC) curve values for the nomogram predicting malignancy were 0·745 for Eastern, 0·856 for Western and 0·776 for combined cohorts; respective values for the nomogram predicting invasiveness were 0·736, 0·891 and 0·788. CONCLUSIONS External validation of the nomogram showed good performance in predicting cancer in both Eastern and Western patients with IPMN lesions.
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Affiliation(s)
- W Jung
- Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea.,Department of Surgery, Ajou University School of Medicine, Suwon, Korea
| | - T Park
- Department of Statistics, Seoul National University College of Natural Sciences, Seoul, Korea
| | - Y Kim
- Department of Statistics, Seoul National University College of Natural Sciences, Seoul, Korea
| | - H Park
- Department of Statistics, Seoul National University College of Natural Sciences, Seoul, Korea
| | - Y Han
- Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - J He
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - C L Wolfgang
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - A Blair
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - M F Rashid
- Department of Surgery, Division of Gastrointestinal and Endocrine Surgery, Columbia University, College of Physicians and Surgeon, New York, USA
| | - M D Kluger
- Department of Surgery, Division of Gastrointestinal and Endocrine Surgery, Columbia University, College of Physicians and Surgeon, New York, USA
| | - G H Su
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, USA
| | - J A Chabot
- Department of Surgery, Division of Gastrointestinal and Endocrine Surgery, Columbia University, College of Physicians and Surgeon, New York, USA
| | - C-Y Yang
- Division of General Surgery, Department of Surgery, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
| | - W Lou
- Department of Pancreatic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - R Valente
- Pancreatic Surgery Unit, Division of Surgery, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institute at Centre for Digestive Diseases, Karolinska University Hospital, Stockholm, Sweden.,Digestive and Liver Disease Unit, Sapienza University of Rome, Rome, Italy
| | - M Del Chiaro
- Pancreatic Surgery Unit, Division of Surgery, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institute at Centre for Digestive Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - Y-M Shyr
- Departments of Surgery, Taipei Veterans General Hospital and National Yang Ming University, Taipei, Taiwan
| | - S-E Wang
- Departments of Surgery, Taipei Veterans General Hospital and National Yang Ming University, Taipei, Taiwan
| | - N C M van Huijgevoort
- Department of Gastroenterology and Hepatology, Amsterdam Gastroenterology and Metabolism, Academic Medical Centre, Amsterdam, the Netherlands
| | - M G Besselink
- Department of Surgery, Cancer Centre Amsterdam, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Y Yang
- Department of General Surgery, Peking University First Hospital, Beijing, China
| | - H Kim
- Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - W Kwon
- Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - S-W Kim
- Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - J-Y Jang
- Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
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Blair A, Gauvin L, Ouédraogo S, Datta GD. Area-level income disparities in colorectal screening in Canada: evidence to inform future surveillance. ACTA ACUST UNITED AC 2019; 26:e128-e137. [PMID: 31043818 DOI: 10.3747/co.26.4279] [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] [Indexed: 12/17/2022]
Abstract
Background Participation in colorectal screening remains low even in countries with universal health coverage. Area-level determinants of low screening participation in Canada remain poorly understood. Methods We assessed the association between area-level income and two indicators of colorectal screening (having never been screened, having not been screened recently) by linking census-derived local area-level income data with self-reported screening data from urban-dwelling respondents to the Canadian Community Health Survey (50-75 years of age, cycles 2005 and 2007, n = 18,362) who reported no known risk factors for colorectal cancer. Generalized estimating equation Poisson models estimated the prevalence ratios and differences for having never been screened and having not been screened recently, adjusting for individual-level income, education, marital status, having a regular physician, age, and sex. Results About 53% of the study population had never been screened. Among individuals who had ever been screened, 35% had been screened recently. Adjusting for covariates, lower area-level income was associated with having never been screened [covariate-adjusted prevalence ratios: 1.24 for quartile 1; 95% confidence limits (cl): 1.16, 1.34; 1.25 for quartile 2; 95% cl: 1.15, 1.33; 1.15 for quartile 3; 95% cl: 1.08, 1.23]. Among individuals who had been screened in their lifetime, area-level income was not associated with having not been screened recently. Conclusions Lower area-level income is associated with having never been screened for colorectal cancer even after adjusting for individual socioeconomic factors. Those findings highlight the potential importance of socioeconomic contexts for colorectal screening initiation and merit attention in both future research and surveillance efforts.
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Affiliation(s)
- A Blair
- Department of Social and Preventive Medicine, École de Santé Publique de l'Université de Montréal Montreal, QC.,Centre de recherche du Centre Hospitalier de l'Université de Montréal, Montreal, QC
| | - L Gauvin
- Department of Social and Preventive Medicine, École de Santé Publique de l'Université de Montréal Montreal, QC.,Centre de recherche du Centre Hospitalier de l'Université de Montréal, Montreal, QC
| | - S Ouédraogo
- Department of Social and Preventive Medicine, École de Santé Publique de l'Université de Montréal Montreal, QC.,Centre de recherche du Centre Hospitalier de l'Université de Montréal, Montreal, QC
| | - G D Datta
- Department of Social and Preventive Medicine, École de Santé Publique de l'Université de Montréal Montreal, QC.,Centre de recherche du Centre Hospitalier de l'Université de Montréal, Montreal, QC
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Fehrman C, Grubbs K, Underwood K, Blair A. Impact of Two Levels of Low Voltage Electrical Stimulation on Beef Quality. Meat and Muscle Biology 2019. [DOI: 10.22175/mmb2019.0071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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14
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Abstract
Elderly people have a greater need for domestic heating given the time they spend at home and the decline in the body thermoregulation that occurs with ageing. The use of domestic heating by 200 mentally competent newly admitted elderly in patients was evaluated by means of a questionnaire survey. Most patients (69%) were aware of the addition of value added tax (VAT) to their fuel bill and 31 % said they had reduced the amount of heating they use because of this. A third of patients (29.5%) said they had difficulty keeping warm prior to this admission. The majority of patients said they could not manage to keep warm in the winter without financial hardship. In addition, 29% said they had reduced the amount spent on food in order to pay for fuel bills. This study suggests that cold may contribute to hospital admissions in elderly patients. This should have implications for government spending and taxation policy on domestic heating.
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Affiliation(s)
- R Morgan
- Withington Hospital, Manchester, England
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15
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Fehrman C, Underwood K, Grubbs JK, Walker J, Wright C, Gonda M, Nold R, Olson K, Rhody A, Rusche W, Blair A. Sdsu Beef 2020 Increases Beef Industry Knowledge for Participants. Meat and Muscle Biology 2018. [DOI: 10.22175/rmc2018.143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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16
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Cadwell K, Turner-Maffei C, Blair A, Brimdyr K, OʼConnor B. How Does the United States Rank According to the World Breastfeeding Trends Initiative? J Perinat Neonatal Nurs 2018; 32:127-135. [PMID: 29381567 DOI: 10.1097/jpn.0000000000000318] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The World Breastfeeding Trends Initiative is an assessment process designed to facilitate an ongoing national appraisal of progress toward the goals of the United Nations Children's Fund (UNICEF)/World Health Organization (WHO) Global Strategy for Infant and Young Child Feeding. More than 80 countries have completed this national assessment, including the United States of America. This article describes the process undertaken by the US World Breastfeeding Trends Initiative team, the findings of the expert panel related to infant and young child feeding policies, programs, and practices and the ranking of the United States compared with the 83 other participating nations. Identified strengths of the United States include data collection and monitoring, especially by the Centers for Disease Control and Prevention, the US Baby-Friendly Hospital Initiative, and the United States Breastfeeding Committee. The absence of a national infant feeding policy, insufficient maternity protection, and lack of preparation for infant and young children feeding in emergencies are key targets identified by the assessment requiring concerted national effort.
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Affiliation(s)
- Karin Cadwell
- Healthy Children Project, Inc, East Sandwich, Massachusetts
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17
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McKinney S, Fehrman C, Webb M, Rhody A, Grubbs JK, Underwood K, Blair A. SDSU BBQ Bootcamp Increases Consumer Knowledge about Meat Selection and Preparation. Meat and Muscle Biology 2018. [DOI: 10.22175/rmc2018.147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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18
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Fehrman C, Rode H, Grubbs J, Blair A, Underwood K. Rumen Protected Long Chain Fatty Acid Supplementation Effects on Beef Carcass Traits and Composition. Meat and Muscle Biology 2017. [DOI: 10.22175/rmc2017.090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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19
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Fogarty PF, Blair A, Vega R, Matthai WH, Gimotty PA. Interventional therapies and in-hospital outcomes in acute coronary syndromes complicated by von Willebrand disease. Haemophilia 2016; 23:400-407. [PMID: 27976460 DOI: 10.1111/hae.13149] [Citation(s) in RCA: 2] [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] [Accepted: 11/09/2016] [Indexed: 01/05/2023]
Abstract
INTRODUCTION von Willebrand disease (VWD) is one of the most common inherited bleeding disorders. AIM Investigate the impact of the VWD bleeding tendency on in-hospital management of acute coronary syndromes (ACS). METHODS Using discharge data from the National Inpatient Sample (NIS), the features of presentation and in-hospital treatment among ACS hospital discharges with and without a VWD diagnosis were investigated. A total of 264 case discharges and 705 860 control discharges were identified. RESULTS AND CONCLUSIONS There was a significantly higher percentage of women among the case discharges compared to the control discharges (59.5% and 39.4%, respectively; P < 0.001). The rate of medical therapy alone [i.e. avoidance of percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG)] was significantly higher among unstable angina cases than controls (55.0% vs. 46.4%; P = 0.01), and among cases undergoing PCI, bare-metal stents (BMS) were utilized in preference to drug-eluting stents (DES) (adjusted OR = 3.5); P < 0.001). No difference in in-hospital death was identified, but reported bleeding among discharges that underwent CABG was higher in cases compared to controls (12.9% vs. 5.2%; P = 0.047). Although medical and interventional management of ACS appears to be well tolerated in the majority of hospitalized patients with VWD, the gender ratio is reversed, interventions and DES are utilized less frequently and procedure-related bleeding may be increased, calling for further study.
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Affiliation(s)
- P F Fogarty
- Penn Comprehensive Hemophilia and Thrombosis Program, Hospital of the University of Pennsylvania, Philadelphia, PA, USA
| | - A Blair
- Department of Biostatistics and Epidemiology, Center for Clinical Epidemiology and Biostatistics, Philadelphia, PA, USA
| | - R Vega
- Penn Comprehensive Hemophilia and Thrombosis Program, Hospital of the University of Pennsylvania, Philadelphia, PA, USA
| | - W H Matthai
- Division of Cardiology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - P A Gimotty
- Department of Biostatistics and Epidemiology, Center for Clinical Epidemiology and Biostatistics, Philadelphia, PA, USA
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20
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Li J, Hoeppner C, Gan S, Blair A, Min K, Sims A, Tietz A, Vinas M, Rehage T, Malhotra K, Halait H, Brophy V. An extended KRAS mutation test for the detection of 28 common mutations in FFPET and plasma specimens. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw363.42] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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21
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Gariepy G, Kaufman JS, Blair A, Kestens Y, Schmitz N. Place and health in diabetes: the neighbourhood environment and risk of depression in adults with type 2 diabetes. Diabet Med 2015; 32:944-50. [PMID: 25440062 DOI: 10.1111/dme.12650] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/25/2014] [Indexed: 12/26/2022]
Abstract
BACKGROUND Depression is a common co-illness in people with diabetes. Evidence suggests that the neighbourhood environment impacts the risk of depression, but few studies have investigated this effect in those with diabetes. We examined the effect of a range of neighbourhood characteristics on depression in people with Type 2 diabetes. METHODS This cohort study used five waves of data from 1298 participants with Type 2 diabetes from the Diabetes Health Study (2008-2013). We assessed depression using the Patient Health Questionnaire. We measured neighbourhood deprivation using census data; density of services using geospatial data; level of greenness using satellite imagery; and perceived neighbourhood characteristics using survey data. The effect of neighbourhood factors on risk of depression was estimated using survival analysis, adjusting for sociodemographic variables. We tested effect modification by age, sex and socio-economic characteristics using interaction terms. RESULTS More physical activity facilities, cultural services and a greater level of greenness in the neighbourhood were associated with a lower risk of depression in our sample, even after adjusting for confounders. Material deprivation was associated with increased risk of depression, particularly in participants who were older or retired. CONCLUSIONS Characteristics of neighbourhoods were associated with the risk of depression in people with Type 2 diabetes and there were vulnerable subgroups within this association. Clinicians are encouraged to consider the neighbourhood environment of their patients when assessing the risk of depression. Future intervention research is need for health policy recommendations.
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Affiliation(s)
- G Gariepy
- Department of Epidemiology and Biostatistics, McGill University, Montreal, Quebec
- Douglas Mental Health University Institute, Montreal, Quebec
| | - J S Kaufman
- Department of Epidemiology and Biostatistics, McGill University, Montreal, Quebec
| | - A Blair
- Douglas Mental Health University Institute, Montreal, Quebec
- Department of Psychiatry, McGill University, Montreal, Quebec
| | - Y Kestens
- Department of Social and Preventative Medicine, University of Montreal, Montreal, Quebec, Canada
| | - N Schmitz
- Department of Epidemiology and Biostatistics, McGill University, Montreal, Quebec
- Douglas Mental Health University Institute, Montreal, Quebec
- Department of Psychiatry, McGill University, Montreal, Quebec
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22
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Blair A, Gariépy G, Schmitz N. The longitudinal effects of neighbourhood social and material deprivation change on psychological distress in urban, community-dwelling Canadian adults. Public Health 2015; 129:932-40. [PMID: 26112124 DOI: 10.1016/j.puhe.2015.05.011] [Citation(s) in RCA: 7] [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] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Revised: 03/11/2015] [Accepted: 05/13/2015] [Indexed: 10/23/2022]
Abstract
OBJECTIVE The purpose of this study was to assess how longitudinal changes in neighbourhood material and social deprivation affect distress outcomes in adult Canadians. STUDY DESIGN This study used a prospective cohort approach. METHODS We paired data from 2745 urban participants of Canada's National Population Health Survey-who completed the Kessler 6-Item psychological distress screening tool at baseline and follow-up-with neighbourhood social and material deprivation data from the census-based Pampalon Deprivation Index. Data were paired using participants' postal code. We conducted multiple linear regression models, which were stratified by baseline deprivation level and controlled for key confounders. RESULTS Most participants lived in neighbourhoods that did not change drastically in social or material deprivation level during the six years between baseline and follow-up. We found that a worsening of material settings was significantly associated with worsening distress scores at follow-up. This finding is discussed in the context of existing literature, and made relevant for urban health research and policy.
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Affiliation(s)
- A Blair
- University of Montreal, School of Public Health, 7101 Avenue du Parc, Montreal, Quebec, H3N 1X9, Canada; CHUM Research Centre (Centre de Recherche du Centre Hospitalier de l'Université de Montréal), 850 Avenue St-Denis, Montreal, Quebec, H2X 0A9, Canada.
| | - G Gariépy
- McGill University, 845 Sherbrooke St. W., Montreal, Quebec, H3A 0G4, Canada; McGill University Institute for Health and Social Policy, 1130 Pine Avenue West, Montreal, Quebec, H3A 1A3, Canada
| | - N Schmitz
- McGill University, 845 Sherbrooke St. W., Montreal, Quebec, H3A 0G4, Canada; Douglas Mental Health University Institute, 6875 LaSalle Boulevard, Montreal, Quebec, H4H 1R3, Canada
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23
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Blair A, Hines C, Thomas K, Alavanja M, Beane Freeman L, Hoppin J, Kamel F, Lynch C, Lubin J, Silverman D, Whelan E, Zahm SH, Sandler DP. Investing in prospective cohorts for etiologic study of occupational exposures. Am J Ind Med 2015; 58:113-22. [PMID: 25603935 PMCID: PMC4516175 DOI: 10.1002/ajim.22403] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [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] [Accepted: 10/10/2014] [Indexed: 12/13/2022]
Abstract
Prospective cohorts have played a major role in understanding the contribution of diet, physical activity, medical conditions, and genes to the development of many diseases, but have not been widely used for occupational exposures. Studies in agriculture are an exception. We draw upon our experience using this design to study agricultural workers to identify conditions that might foster use of prospective cohorts to study other occupational settings. Prospective cohort studies are perceived by many as the strongest epidemiologic design. It allows updating of information on exposure and other factors, collection of biologic samples before disease diagnosis for biomarker studies, assessment of effect modification by genes, lifestyle, and other occupational exposures, and evaluation of a wide range of health outcomes. Increased use of prospective cohorts would be beneficial in identifying hazardous exposures in the workplace. Occupational epidemiologists should seek opportunities to initiate prospective cohorts to investigate high priority, occupational exposures.
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Affiliation(s)
- A. Blair
- Division of Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland
| | - C.J. Hines
- National Institute for Occupational Safety and Health, Cincinnati, Ohio
| | - K.W. Thomas
- National Exposure Research Laboratory, U.S. Environmental Protection Agency, North Carolina
| | - M.C.R. Alavanja
- Division of Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland
| | - L.E. Beane Freeman
- Division of Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland
| | - J.A. Hoppin
- Department of Biological Sciences, North Carolina State University, Raleigh, North Carolina
| | - F. Kamel
- Epidemiology Branch, National Institute for Environmental Health Sciences, North Carolina
| | - C.F. Lynch
- College of Public Health, University of Iowa, Iowa City, Iowa
| | - J.H. Lubin
- Division of Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland
| | - D.T. Silverman
- Division of Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland
| | - E. Whelan
- National Institute for Occupational Safety and Health, Cincinnati, Ohio
| | - S. H. Zahm
- Division of Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland
| | - D. P. Sandler
- Epidemiology Branch, National Institute for Environmental Health Sciences, North Carolina
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24
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Sanger D, Blair A, DiDonato G, Washburn T, Jones S, Riekerk G, Wirth E, Stewart J, White D, Vandiver L, Holland A. Impacts of Coastal Development on the Ecology of Tidal Creek Ecosystems of the US Southeast including Consequences to Humans. Estuaries Coast 2015; 38:49-66. [PMID: 31354396 PMCID: PMC6660006 DOI: 10.1007/s12237-013-9635-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Upland areas of southeastern U.S. tidal creek watersheds are popular locations for development, and they form part of the estuarine ecosystem characterized by high economic and ecological value. The primary objective of this work was to define the relationships between coastal development, with its concomitant land use changes and associated increases in nonpoint source pollution loading, and the ecological condition of tidal creek ecosystems including related consequences to human populations and coastal communities. Nineteen tidal creek systems, located along the southeastern United States coast from southern North Carolina to southern Georgia, were sampled during summer, 2005 and 2006. Within each system, creeks were divided into two primary segments based upon tidal zoning: intertidal (i.e., shallow, narrow headwater sections) and subtidal (i.e., deeper and wider sections) and then watersheds were delineated for each segment. Relationships between coastal development, concomitant land use changes, nonpoint source pollution loading, the ecological condition of tidal creek ecosystems, and the potential impacts to human populations and coastal communities were evaluated. In particular, relationships were identified between the amount of impervious cover (indicator of coastal development) and a range of exposure and response measures including increased chemical contamination of the sediments, increased pathogens in the water, increased nitrate/nitrite levels, increased salinity range, decreased biological productivity of the macrobenthos, alterations to the food web, increased flooding potential, and increased human risk of exposure to pathogens and harmful chemicals. The integrity of tidal creeks, particularly the headwaters or intertidally-dominated sections, were impaired by increases in nonpoint source pollution associated with sprawling urbanization (i.e., increases in impervious cover). This finding suggests these habitats are valuable early warning sentinels of ensuing ecological impacts and potential public health and flooding risk from sprawling coastal development. Results also validate the use of a conceptual model with impervious cover thresholds for tidal creek systems in the southeast region.
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Affiliation(s)
- D. Sanger
- South Carolina Sea Grant Consortium, 287 Meeting Street, Charleston, SC 29401, U.S
- NOAA, Center of Excellence in Oceans and Human Health, Center for Human Health Risk, Hollings Marine Laboratory, 331 Fort Johnson Road, Charleston, SC, 29412, U.S
- Marine Resources Research Institute, South Carolina Department of Natural Resources, 217 Fort Johnson Road, Charleston SC, 29412, U.S
| | - A. Blair
- NOAA, Center of Excellence in Oceans and Human Health, Center for Human Health Risk, Hollings Marine Laboratory, 331 Fort Johnson Road, Charleston, SC, 29412, U.S
| | - G. DiDonato
- NOAA, Center of Excellence in Oceans and Human Health, Center for Human Health Risk, Hollings Marine Laboratory, 331 Fort Johnson Road, Charleston, SC, 29412, U.S
| | - T. Washburn
- College of Charleston, 205 Fort Johnson Road, Charleston, SC, 29412, U.S
| | - S. Jones
- College of Charleston, 205 Fort Johnson Road, Charleston, SC, 29412, U.S
| | - G. Riekerk
- Marine Resources Research Institute, South Carolina Department of Natural Resources, 217 Fort Johnson Road, Charleston SC, 29412, U.S
| | - E. Wirth
- NOAA, Center for Coastal Environmental Health and Biomolecular Research, 219 Fort Johnson Road, Charleston, SC, 29412, U.S
| | - J. Stewart
- NOAA, Center for Coastal Environmental Health and Biomolecular Research, 219 Fort Johnson Road, Charleston, SC, 29412, U.S
- University of North Carolina, Chapel Hill, 135 Dauer Dr., Chapel Hill, NC 27599, U.S
| | - D. White
- NOAA, Center of Excellence in Oceans and Human Health, Center for Human Health Risk, Hollings Marine Laboratory, 331 Fort Johnson Road, Charleston, SC, 29412, U.S
| | - L. Vandiver
- Arnold School of Public Health, University of South Carolina, 800 Sumter Street, Columbia, SC 29208, U.S
| | - A.F. Holland
- NOAA, Center of Excellence in Oceans and Human Health, Center for Human Health Risk, Hollings Marine Laboratory, 331 Fort Johnson Road, Charleston, SC, 29412, U.S
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25
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Gumley AI, Schwannauer M, Macbeth A, Fisher R, Clark S, Rattrie L, Fraser G, McCabe R, Blair A, Davidson K, Birchwood M. Insight, duration of untreated psychosis and attachment in first-episode psychosis: prospective study of psychiatric recovery over 12-month follow-up. Br J Psychiatry 2014; 205:60-7. [PMID: 24723630 DOI: 10.1192/bjp.bp.113.126722] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [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] [Indexed: 02/04/2023]
Abstract
BACKGROUND Increasing evidence shows attachment security influences symptom expression and adaptation in people diagnosed with schizophrenia and other psychoses. AIMS To describe the distribution of secure and insecure attachment in a cohort of individuals with first-episode psychosis, and to explore the relationship between attachment security and recovery from positive and negative symptoms in the first 12 months. METHOD The study was a prospective 12-month cohort study. The role of attachment, duration of untreated psychosis (DUP), baseline symptoms and insight in predicting and mediating recovery from symptoms was investigated using multiple regression analysis and path analysis. RESULTS Of the 79 participants, 54 completed the Adult Attachment Interview (AAI): 37 (68.5%) were classified as insecure, of which 26 (48.1%) were insecure/dismissing and 11 (20.4%) insecure preoccupied. Both DUP and insight predicted recovery from positive symptoms at 12 months. Attachment security, DUP and insight predicted recovery from negative symptoms at 12 months. CONCLUSIONS Attachment is an important construct contributing to understanding and development of interventions promoting recovery following first-episode psychosis.
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Affiliation(s)
- A I Gumley
- A. I. Gumley, BA(Hons), MAppSci, PhD, AFBPsS, CPsychol, Institute of Health and Wellbeing, University of Glasgow, and ESTEEM First Episode Psychosis Service, NHS Greater Glasgow and Clyde, Glasgow; M. Schwannauer, MA, DPsych, PhD, Department of Clinical & Health Psychology, University of Edinburgh, Edinburgh, and Early Psychosis Support Service, NHS Lothian, Edinburgh; A. Macbeth, DClinPsy, PhD, Institute of Health and Wellbeing, University of Glasgow, Glasgow, and Institute of Medical Sciences, University of Aberdeen, Aberdeen; R. Fisher, PhD, Early Psychosis Support Service, NHS Lothian, Edinburgh, and Department of Clinical & Health Psychology, University of Edinburgh, Edinburgh; S. Clark, MA(Hons), DClinPsychol, ESTEEM First Episode Psychosis Service, NHS Greater Glasgow and Clyde, Glasgow; L. Rattrie, BSc(Hons), MSc, PhD, Institute of Health and Wellbeing, University of Glasgow, Glasgow; G. Fraser, MSc, Early Psychosis Support Service, NHS Lothian, Edinburgh; R. McCabe, MBChB, MPhil, FRCPsych, Early Psychosis Support Service, NHS Lothian, Edinburgh; A. Blair, FRCPsych, ESTEEM First Episode Psychosis Service, NHS Greater Glasgow and Clyde, Glasgow; K. Davidson, MA, MPhil, PhD, FBPsS, CPsychol, Institute of Health and Wellbeing University of Glasgow, and Glasgow Institute for Psychosocial Interventions, NHS Greater Glasgow and Clyde, Glasgow; M. Birchwood, BSc, PhD, DSc, FBPsS, Warwick Medical School, University of Warwick, Warwick, UK
| | - M Schwannauer
- A. I. Gumley, BA(Hons), MAppSci, PhD, AFBPsS, CPsychol, Institute of Health and Wellbeing, University of Glasgow, and ESTEEM First Episode Psychosis Service, NHS Greater Glasgow and Clyde, Glasgow; M. Schwannauer, MA, DPsych, PhD, Department of Clinical & Health Psychology, University of Edinburgh, Edinburgh, and Early Psychosis Support Service, NHS Lothian, Edinburgh; A. Macbeth, DClinPsy, PhD, Institute of Health and Wellbeing, University of Glasgow, Glasgow, and Institute of Medical Sciences, University of Aberdeen, Aberdeen; R. Fisher, PhD, Early Psychosis Support Service, NHS Lothian, Edinburgh, and Department of Clinical & Health Psychology, University of Edinburgh, Edinburgh; S. Clark, MA(Hons), DClinPsychol, ESTEEM First Episode Psychosis Service, NHS Greater Glasgow and Clyde, Glasgow; L. Rattrie, BSc(Hons), MSc, PhD, Institute of Health and Wellbeing, University of Glasgow, Glasgow; G. Fraser, MSc, Early Psychosis Support Service, NHS Lothian, Edinburgh; R. McCabe, MBChB, MPhil, FRCPsych, Early Psychosis Support Service, NHS Lothian, Edinburgh; A. Blair, FRCPsych, ESTEEM First Episode Psychosis Service, NHS Greater Glasgow and Clyde, Glasgow; K. Davidson, MA, MPhil, PhD, FBPsS, CPsychol, Institute of Health and Wellbeing University of Glasgow, and Glasgow Institute for Psychosocial Interventions, NHS Greater Glasgow and Clyde, Glasgow; M. Birchwood, BSc, PhD, DSc, FBPsS, Warwick Medical School, University of Warwick, Warwick, UK
| | - A Macbeth
- A. I. Gumley, BA(Hons), MAppSci, PhD, AFBPsS, CPsychol, Institute of Health and Wellbeing, University of Glasgow, and ESTEEM First Episode Psychosis Service, NHS Greater Glasgow and Clyde, Glasgow; M. Schwannauer, MA, DPsych, PhD, Department of Clinical & Health Psychology, University of Edinburgh, Edinburgh, and Early Psychosis Support Service, NHS Lothian, Edinburgh; A. Macbeth, DClinPsy, PhD, Institute of Health and Wellbeing, University of Glasgow, Glasgow, and Institute of Medical Sciences, University of Aberdeen, Aberdeen; R. Fisher, PhD, Early Psychosis Support Service, NHS Lothian, Edinburgh, and Department of Clinical & Health Psychology, University of Edinburgh, Edinburgh; S. Clark, MA(Hons), DClinPsychol, ESTEEM First Episode Psychosis Service, NHS Greater Glasgow and Clyde, Glasgow; L. Rattrie, BSc(Hons), MSc, PhD, Institute of Health and Wellbeing, University of Glasgow, Glasgow; G. Fraser, MSc, Early Psychosis Support Service, NHS Lothian, Edinburgh; R. McCabe, MBChB, MPhil, FRCPsych, Early Psychosis Support Service, NHS Lothian, Edinburgh; A. Blair, FRCPsych, ESTEEM First Episode Psychosis Service, NHS Greater Glasgow and Clyde, Glasgow; K. Davidson, MA, MPhil, PhD, FBPsS, CPsychol, Institute of Health and Wellbeing University of Glasgow, and Glasgow Institute for Psychosocial Interventions, NHS Greater Glasgow and Clyde, Glasgow; M. Birchwood, BSc, PhD, DSc, FBPsS, Warwick Medical School, University of Warwick, Warwick, UK
| | - R Fisher
- A. I. Gumley, BA(Hons), MAppSci, PhD, AFBPsS, CPsychol, Institute of Health and Wellbeing, University of Glasgow, and ESTEEM First Episode Psychosis Service, NHS Greater Glasgow and Clyde, Glasgow; M. Schwannauer, MA, DPsych, PhD, Department of Clinical & Health Psychology, University of Edinburgh, Edinburgh, and Early Psychosis Support Service, NHS Lothian, Edinburgh; A. Macbeth, DClinPsy, PhD, Institute of Health and Wellbeing, University of Glasgow, Glasgow, and Institute of Medical Sciences, University of Aberdeen, Aberdeen; R. Fisher, PhD, Early Psychosis Support Service, NHS Lothian, Edinburgh, and Department of Clinical & Health Psychology, University of Edinburgh, Edinburgh; S. Clark, MA(Hons), DClinPsychol, ESTEEM First Episode Psychosis Service, NHS Greater Glasgow and Clyde, Glasgow; L. Rattrie, BSc(Hons), MSc, PhD, Institute of Health and Wellbeing, University of Glasgow, Glasgow; G. Fraser, MSc, Early Psychosis Support Service, NHS Lothian, Edinburgh; R. McCabe, MBChB, MPhil, FRCPsych, Early Psychosis Support Service, NHS Lothian, Edinburgh; A. Blair, FRCPsych, ESTEEM First Episode Psychosis Service, NHS Greater Glasgow and Clyde, Glasgow; K. Davidson, MA, MPhil, PhD, FBPsS, CPsychol, Institute of Health and Wellbeing University of Glasgow, and Glasgow Institute for Psychosocial Interventions, NHS Greater Glasgow and Clyde, Glasgow; M. Birchwood, BSc, PhD, DSc, FBPsS, Warwick Medical School, University of Warwick, Warwick, UK
| | - S Clark
- A. I. Gumley, BA(Hons), MAppSci, PhD, AFBPsS, CPsychol, Institute of Health and Wellbeing, University of Glasgow, and ESTEEM First Episode Psychosis Service, NHS Greater Glasgow and Clyde, Glasgow; M. Schwannauer, MA, DPsych, PhD, Department of Clinical & Health Psychology, University of Edinburgh, Edinburgh, and Early Psychosis Support Service, NHS Lothian, Edinburgh; A. Macbeth, DClinPsy, PhD, Institute of Health and Wellbeing, University of Glasgow, Glasgow, and Institute of Medical Sciences, University of Aberdeen, Aberdeen; R. Fisher, PhD, Early Psychosis Support Service, NHS Lothian, Edinburgh, and Department of Clinical & Health Psychology, University of Edinburgh, Edinburgh; S. Clark, MA(Hons), DClinPsychol, ESTEEM First Episode Psychosis Service, NHS Greater Glasgow and Clyde, Glasgow; L. Rattrie, BSc(Hons), MSc, PhD, Institute of Health and Wellbeing, University of Glasgow, Glasgow; G. Fraser, MSc, Early Psychosis Support Service, NHS Lothian, Edinburgh; R. McCabe, MBChB, MPhil, FRCPsych, Early Psychosis Support Service, NHS Lothian, Edinburgh; A. Blair, FRCPsych, ESTEEM First Episode Psychosis Service, NHS Greater Glasgow and Clyde, Glasgow; K. Davidson, MA, MPhil, PhD, FBPsS, CPsychol, Institute of Health and Wellbeing University of Glasgow, and Glasgow Institute for Psychosocial Interventions, NHS Greater Glasgow and Clyde, Glasgow; M. Birchwood, BSc, PhD, DSc, FBPsS, Warwick Medical School, University of Warwick, Warwick, UK
| | - L Rattrie
- A. I. Gumley, BA(Hons), MAppSci, PhD, AFBPsS, CPsychol, Institute of Health and Wellbeing, University of Glasgow, and ESTEEM First Episode Psychosis Service, NHS Greater Glasgow and Clyde, Glasgow; M. Schwannauer, MA, DPsych, PhD, Department of Clinical & Health Psychology, University of Edinburgh, Edinburgh, and Early Psychosis Support Service, NHS Lothian, Edinburgh; A. Macbeth, DClinPsy, PhD, Institute of Health and Wellbeing, University of Glasgow, Glasgow, and Institute of Medical Sciences, University of Aberdeen, Aberdeen; R. Fisher, PhD, Early Psychosis Support Service, NHS Lothian, Edinburgh, and Department of Clinical & Health Psychology, University of Edinburgh, Edinburgh; S. Clark, MA(Hons), DClinPsychol, ESTEEM First Episode Psychosis Service, NHS Greater Glasgow and Clyde, Glasgow; L. Rattrie, BSc(Hons), MSc, PhD, Institute of Health and Wellbeing, University of Glasgow, Glasgow; G. Fraser, MSc, Early Psychosis Support Service, NHS Lothian, Edinburgh; R. McCabe, MBChB, MPhil, FRCPsych, Early Psychosis Support Service, NHS Lothian, Edinburgh; A. Blair, FRCPsych, ESTEEM First Episode Psychosis Service, NHS Greater Glasgow and Clyde, Glasgow; K. Davidson, MA, MPhil, PhD, FBPsS, CPsychol, Institute of Health and Wellbeing University of Glasgow, and Glasgow Institute for Psychosocial Interventions, NHS Greater Glasgow and Clyde, Glasgow; M. Birchwood, BSc, PhD, DSc, FBPsS, Warwick Medical School, University of Warwick, Warwick, UK
| | - G Fraser
- A. I. Gumley, BA(Hons), MAppSci, PhD, AFBPsS, CPsychol, Institute of Health and Wellbeing, University of Glasgow, and ESTEEM First Episode Psychosis Service, NHS Greater Glasgow and Clyde, Glasgow; M. Schwannauer, MA, DPsych, PhD, Department of Clinical & Health Psychology, University of Edinburgh, Edinburgh, and Early Psychosis Support Service, NHS Lothian, Edinburgh; A. Macbeth, DClinPsy, PhD, Institute of Health and Wellbeing, University of Glasgow, Glasgow, and Institute of Medical Sciences, University of Aberdeen, Aberdeen; R. Fisher, PhD, Early Psychosis Support Service, NHS Lothian, Edinburgh, and Department of Clinical & Health Psychology, University of Edinburgh, Edinburgh; S. Clark, MA(Hons), DClinPsychol, ESTEEM First Episode Psychosis Service, NHS Greater Glasgow and Clyde, Glasgow; L. Rattrie, BSc(Hons), MSc, PhD, Institute of Health and Wellbeing, University of Glasgow, Glasgow; G. Fraser, MSc, Early Psychosis Support Service, NHS Lothian, Edinburgh; R. McCabe, MBChB, MPhil, FRCPsych, Early Psychosis Support Service, NHS Lothian, Edinburgh; A. Blair, FRCPsych, ESTEEM First Episode Psychosis Service, NHS Greater Glasgow and Clyde, Glasgow; K. Davidson, MA, MPhil, PhD, FBPsS, CPsychol, Institute of Health and Wellbeing University of Glasgow, and Glasgow Institute for Psychosocial Interventions, NHS Greater Glasgow and Clyde, Glasgow; M. Birchwood, BSc, PhD, DSc, FBPsS, Warwick Medical School, University of Warwick, Warwick, UK
| | - R McCabe
- A. I. Gumley, BA(Hons), MAppSci, PhD, AFBPsS, CPsychol, Institute of Health and Wellbeing, University of Glasgow, and ESTEEM First Episode Psychosis Service, NHS Greater Glasgow and Clyde, Glasgow; M. Schwannauer, MA, DPsych, PhD, Department of Clinical & Health Psychology, University of Edinburgh, Edinburgh, and Early Psychosis Support Service, NHS Lothian, Edinburgh; A. Macbeth, DClinPsy, PhD, Institute of Health and Wellbeing, University of Glasgow, Glasgow, and Institute of Medical Sciences, University of Aberdeen, Aberdeen; R. Fisher, PhD, Early Psychosis Support Service, NHS Lothian, Edinburgh, and Department of Clinical & Health Psychology, University of Edinburgh, Edinburgh; S. Clark, MA(Hons), DClinPsychol, ESTEEM First Episode Psychosis Service, NHS Greater Glasgow and Clyde, Glasgow; L. Rattrie, BSc(Hons), MSc, PhD, Institute of Health and Wellbeing, University of Glasgow, Glasgow; G. Fraser, MSc, Early Psychosis Support Service, NHS Lothian, Edinburgh; R. McCabe, MBChB, MPhil, FRCPsych, Early Psychosis Support Service, NHS Lothian, Edinburgh; A. Blair, FRCPsych, ESTEEM First Episode Psychosis Service, NHS Greater Glasgow and Clyde, Glasgow; K. Davidson, MA, MPhil, PhD, FBPsS, CPsychol, Institute of Health and Wellbeing University of Glasgow, and Glasgow Institute for Psychosocial Interventions, NHS Greater Glasgow and Clyde, Glasgow; M. Birchwood, BSc, PhD, DSc, FBPsS, Warwick Medical School, University of Warwick, Warwick, UK
| | - A Blair
- A. I. Gumley, BA(Hons), MAppSci, PhD, AFBPsS, CPsychol, Institute of Health and Wellbeing, University of Glasgow, and ESTEEM First Episode Psychosis Service, NHS Greater Glasgow and Clyde, Glasgow; M. Schwannauer, MA, DPsych, PhD, Department of Clinical & Health Psychology, University of Edinburgh, Edinburgh, and Early Psychosis Support Service, NHS Lothian, Edinburgh; A. Macbeth, DClinPsy, PhD, Institute of Health and Wellbeing, University of Glasgow, Glasgow, and Institute of Medical Sciences, University of Aberdeen, Aberdeen; R. Fisher, PhD, Early Psychosis Support Service, NHS Lothian, Edinburgh, and Department of Clinical & Health Psychology, University of Edinburgh, Edinburgh; S. Clark, MA(Hons), DClinPsychol, ESTEEM First Episode Psychosis Service, NHS Greater Glasgow and Clyde, Glasgow; L. Rattrie, BSc(Hons), MSc, PhD, Institute of Health and Wellbeing, University of Glasgow, Glasgow; G. Fraser, MSc, Early Psychosis Support Service, NHS Lothian, Edinburgh; R. McCabe, MBChB, MPhil, FRCPsych, Early Psychosis Support Service, NHS Lothian, Edinburgh; A. Blair, FRCPsych, ESTEEM First Episode Psychosis Service, NHS Greater Glasgow and Clyde, Glasgow; K. Davidson, MA, MPhil, PhD, FBPsS, CPsychol, Institute of Health and Wellbeing University of Glasgow, and Glasgow Institute for Psychosocial Interventions, NHS Greater Glasgow and Clyde, Glasgow; M. Birchwood, BSc, PhD, DSc, FBPsS, Warwick Medical School, University of Warwick, Warwick, UK
| | - K Davidson
- A. I. Gumley, BA(Hons), MAppSci, PhD, AFBPsS, CPsychol, Institute of Health and Wellbeing, University of Glasgow, and ESTEEM First Episode Psychosis Service, NHS Greater Glasgow and Clyde, Glasgow; M. Schwannauer, MA, DPsych, PhD, Department of Clinical & Health Psychology, University of Edinburgh, Edinburgh, and Early Psychosis Support Service, NHS Lothian, Edinburgh; A. Macbeth, DClinPsy, PhD, Institute of Health and Wellbeing, University of Glasgow, Glasgow, and Institute of Medical Sciences, University of Aberdeen, Aberdeen; R. Fisher, PhD, Early Psychosis Support Service, NHS Lothian, Edinburgh, and Department of Clinical & Health Psychology, University of Edinburgh, Edinburgh; S. Clark, MA(Hons), DClinPsychol, ESTEEM First Episode Psychosis Service, NHS Greater Glasgow and Clyde, Glasgow; L. Rattrie, BSc(Hons), MSc, PhD, Institute of Health and Wellbeing, University of Glasgow, Glasgow; G. Fraser, MSc, Early Psychosis Support Service, NHS Lothian, Edinburgh; R. McCabe, MBChB, MPhil, FRCPsych, Early Psychosis Support Service, NHS Lothian, Edinburgh; A. Blair, FRCPsych, ESTEEM First Episode Psychosis Service, NHS Greater Glasgow and Clyde, Glasgow; K. Davidson, MA, MPhil, PhD, FBPsS, CPsychol, Institute of Health and Wellbeing University of Glasgow, and Glasgow Institute for Psychosocial Interventions, NHS Greater Glasgow and Clyde, Glasgow; M. Birchwood, BSc, PhD, DSc, FBPsS, Warwick Medical School, University of Warwick, Warwick, UK
| | - M Birchwood
- A. I. Gumley, BA(Hons), MAppSci, PhD, AFBPsS, CPsychol, Institute of Health and Wellbeing, University of Glasgow, and ESTEEM First Episode Psychosis Service, NHS Greater Glasgow and Clyde, Glasgow; M. Schwannauer, MA, DPsych, PhD, Department of Clinical & Health Psychology, University of Edinburgh, Edinburgh, and Early Psychosis Support Service, NHS Lothian, Edinburgh; A. Macbeth, DClinPsy, PhD, Institute of Health and Wellbeing, University of Glasgow, Glasgow, and Institute of Medical Sciences, University of Aberdeen, Aberdeen; R. Fisher, PhD, Early Psychosis Support Service, NHS Lothian, Edinburgh, and Department of Clinical & Health Psychology, University of Edinburgh, Edinburgh; S. Clark, MA(Hons), DClinPsychol, ESTEEM First Episode Psychosis Service, NHS Greater Glasgow and Clyde, Glasgow; L. Rattrie, BSc(Hons), MSc, PhD, Institute of Health and Wellbeing, University of Glasgow, Glasgow; G. Fraser, MSc, Early Psychosis Support Service, NHS Lothian, Edinburgh; R. McCabe, MBChB, MPhil, FRCPsych, Early Psychosis Support Service, NHS Lothian, Edinburgh; A. Blair, FRCPsych, ESTEEM First Episode Psychosis Service, NHS Greater Glasgow and Clyde, Glasgow; K. Davidson, MA, MPhil, PhD, FBPsS, CPsychol, Institute of Health and Wellbeing University of Glasgow, and Glasgow Institute for Psychosocial Interventions, NHS Greater Glasgow and Clyde, Glasgow; M. Birchwood, BSc, PhD, DSc, FBPsS, Warwick Medical School, University of Warwick, Warwick, UK
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Cocco P, Vermeulen R, Flore V, Nonne T, Campagna M, Purdue M, Blair A, Monnereau A, Orsi L, Clavel J, Becker N, de Sanjosé S, Foretova L, Staines A, Maynadié M, Nieters A, Miligi L, 't Mannetje A, Kricker A, Brennan P, Boffetta P, Lan Q, Rothman N. Occupational exposure to trichloroethylene and risk of non-Hodgkin lymphoma and its major subtypes: a pooled InterLymph [correction of IinterLlymph] analysis. Occup Environ Med 2013; 70:795-802. [PMID: 23881218 DOI: 10.1136/oemed-2013-101551] [Citation(s) in RCA: 20] [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] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
OBJECTIVES We evaluated the association between occupational exposure to trichloroethylene (TCE) and risk of non-Hodgkin lymphoma (NHL) in a pooled analysis of four international case-control studies. METHODS Overall, the pooled study population included 3788 NHL cases and 4279 controls. Risk of NHL and its major subtypes associated with TCE exposure was calculated with unconditional logistic regression and polytomous regression analysis, adjusting by age, gender and study. RESULTS Risk of follicular lymphoma (FL), but not NHL overall or other subtypes, increased by probability (p=0.02) and intensity level (p=0.04), and with the combined analysis of four exposure metrics assumed as independent (p=0.004). After restricting the analysis to the most likely exposed study subjects, risk of NHL overall, FL and chronic lymphocytic leukaemia (CLL) were elevated and increased by duration of exposure (p=0.009, p=0.04 and p=0.01, respectively) and with the combined analysis of duration, frequency and intensity of exposure (p=0.004, p=0.015 and p=0.005, respectively). Although based on small numbers of exposed, risk of all the major NHL subtypes, namely diffuse large B-cell lymphoma, FL and CLL, showed increases in risk ranging 2-3.2-fold in the highest category of exposure intensity. No significant heterogeneity in risk was detected by major NHL subtypes or by study. CONCLUSIONS Our pooled analysis apparently supports the hypothesis of an increase in risk of specific NHL subtypes associated with occupational exposure to TCE.
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Affiliation(s)
- P Cocco
- Department of Public Health, Clinical and Molecular Medicine, Occupational Health Section, University of Cagliari, Monserrato, Italy
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Walsh D, Smyth D, Ma Y, Harris C, Blair A, Lee S, Lancaster J. Do Cardiovascular Risk Factors Predict Exercise Treadmill Testing Outcomes? Heart Lung Circ 2013. [DOI: 10.1016/j.hlc.2013.04.085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Kamel F, Richardson G, Umbach D, Richards M, Bhudhikanok G, Blair A, Chade A, Comyns K, Goldman S, Hoppin J, Kasten M, Korell M, Marras C, Meng C, Ross G, Langston J, Sandler D, Tanner C. Risk of Parkinson's Disease (PD) Associated with the Herbicide Paraquat Is Attenuated by High Dietary Intake of Polyunsaturated Fatty Acids (PUFAs) (S42.004). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.s42.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Goldman S, Kamel F, Bhudhikanok G, Korell M, Meng C, Comyns K, Umbach D, Hoppin J, Ross W, Marras C, Kasten M, Chade A, Sandler D, Blair A, Langston J, Tanner C. Paraquat Use Modifies the Association of Head Injury and Parkinson's Disease (PD) (S42.003). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.s42.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Stewart PA, Vermeulen R, Coble JB, Blair A, Schleiff P, Lubin JH, Attfield M, Silverman DT. The Diesel Exhaust in Miners Study: V. Evaluation of the Exposure Assessment Methods. Annals of Occupational Hygiene 2012. [DOI: 10.1093/annhyg/mer017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Hohenadel K, Straif K, Demers P, Blair A. The effectiveness of asbestos-related interventions in reducing rates of lung cancer and mesothelioma: a systematic review. Occup Environ Med 2011. [DOI: 10.1136/oemed-2011-100382.229] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Hohenadel K, Pichora E, Marrett L, Bukvic D, Brown J, Harris SA, Demers PA, Blair A. Priority issues in occupational cancer research: Ontario stakeholder perspectives. Chronic Dis Inj Can 2011; 31:147-151. [PMID: 21978637] [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] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
INTRODUCTION Workers are potentially exposed to known and suspected carcinogens in the workplace, many of which have not been fully evaluated. Despite persistent need, research on occupational cancer appears to have declined in recent decades. The formation of the Occupational Cancer Research Centre (OCRC) is an effort to counter this downward trend in Ontario. The OCRC conducted a survey of the broad stakeholder community to learn about priority issues on occupational cancer research. METHODS The OCRC received 177 responses to its survey from academic, health care, policy, industry, and labour-affiliated stakeholders. Responses were analyzed based on workplace exposures, at-risk occupations and cancers by organ system, stratified by respondents' occupational role. DISCUSSION Priority issues identified included workplace exposures such as chemicals, respirable dusts and fibres (e.g. asbestos), radiation (e.g. electromagnetic fields), pesticides, and shift work; and occupations such as miners, construction workers, and health care workers. Insufficient funding and a lack of exposure data were identified as the central barriers to conducting occupational cancer research. CONCLUSION The results of this survey underscore the great need for occupational cancer research in Ontario and beyond. They will be very useful as the OCRC develops its research agenda.
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Affiliation(s)
- K Hohenadel
- Occupational Cancer Research Centre, Toronto, Ontario, Canada.
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Hauptmann M, Stewart PA, Lubin JH, Beane freeman LE, Hornung RW, Herrick RF, Hoover RN, Fraumeni JF, Blair A, Hayes RB. Response: Re: Mortality From Lymphohematopoietic Malignancies and Brain Cancer Among Embalmers Exposed to Formaldehyde. J Natl Cancer Inst 2010. [DOI: 10.1093/jnci/djq333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Abstract
OBJECTIVE To prospectively investigate the relationship between physical activity and Parkinson disease (PD). METHODS We evaluated physical activity in relation to PD among 213,701 participants of the NIH-AARP Diet and Health Study cohort. Physical activities over 4 periods (ages 15-18, 19-29, and 35-39, and in the past 10 years) were noted in 1996-1997, and physician-diagnosed PD was reported on the 2004-2006 follow-up questionnaire. Only cases diagnosed after 2000 (n = 767) were included in the analyses. RESULTS Higher levels of moderate to vigorous activities at ages 35-39 or in the past 10 years as reported in 1996-1997 were associated with lower PD occurrence after 2000 with significant dose-response relationships. The multivariate odds ratios (OR) between the highest vs the lowest levels were 0.62 (95% CI confidence interval [CI] 0.48-0.81, p for trend 0.005) for ages 35-39 and 0.65 (95% CI 0.51-0.83, p for trend 0.0001) for in the past 10 years. Further analyses showed that individuals with consistent and frequent participation in moderate to vigorous activities in both periods had approximately a 40% lower risk than those who were inactive in both periods. Moderate to vigorous activities at earlier ages or light activities were not associated with PD. Finally, the association between higher moderate to vigorous physical activities and lower PD risk was demonstrated in a metaanalysis of prospective studies. CONCLUSIONS Although we cannot exclude the possibility that less participation in physical activity is an early marker of PD, epidemiologic evidence suggests that moderate to vigorous exercise may protect against PD.
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Affiliation(s)
- Q Xu
- Epidemiology Branch, National Institute of Environmental Health Sciences, 111 T.W. Alexander Drive, Research Triangle Park, NC 27709, USA
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Lee KM, Chapman RS, Shen M, Lubin JH, Silverman DT, He X, Hosgood HD, Chen BE, Rajaraman P, Caporaso NE, Fraumeni JF, Blair A, Lan Q. Differential effects of smoking on lung cancer mortality before and after household stove improvement in Xuanwei, China. Br J Cancer 2010; 103:727-9. [PMID: 20648014 PMCID: PMC2938247 DOI: 10.1038/sj.bjc.6605791] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Background: In Xuanwei County, Yunnan Province, China, lung cancer mortality rates in both males and females are among the highest in China. Methods: We evaluated differential effects of smoking on lung cancer mortality before and after household stove improvement with chimney to reduce exposure to smoky coal emissions in the unique cohort in Xuanwei, China. Effects of independent variables on lung cancer mortality were measured as hazard ratios and 95% confidence intervals using a multivariable Cox regression model that included separate time-dependent variables for smoking duration (years) before and after stove improvement. Results and conclusion: We found that the effect of smoking on lung cancer risk becomes considerably stronger after chimney installation and consequent reduction of indoor coal smoke exposure.
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Affiliation(s)
- K-M Lee
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA.
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Travers B, Henderson S, Vasireddy S, SeQueira EJ, Cornell PJ, Richards S, Khan A, Hasan S, Withrington R, Leak A, Sandhu J, Joseph A, Packham JC, Lyle S, Martin JC, Goodfellow RM, Rhys-Dillon C, Morgan JT, Mogford S, Rowan-Phillips J, Moss D, Wilson H, McEntegart A, Morgan JT, Martin JC, Rhys Dillon C, Goodfellow R, Gould L, Bukhari M, Hassan S, Butt S, Deighton C, Gadsby K, Love V, Kara N, Gohery M, Keat A, Lewis A, Robinson R, Bastawrous S, Roychowdhury B, Roskell S, Douglas B, Keating H, Giles S, McPeake J, Molloy C, Chalam V, Mulherin D, Price T, Sheeran T, Benjamin SR, Thompson PW, Cornell P, Siddle HJ, Backhouse MR, Monkhouse RA, Harris NJ, Helliwell PS, Azzopardi L, Hudson S, Mallia C, Cassar K, Coleiro B, Cassar PJ, Aquilina D, Camilleri F, Serracino Inglott A, Azzopardi LM, Robinson S, Peta H, Margot L, David W, Mann C, Gooberman-Hill R, Jagannath D, Healey E, Goddard C, Pugh MT, Gilham L, Bawa S, Barlow JH, MacFarland L, Tindall L, Leddington Wright S, Tooby J, Ravindran J, Perkins P, McGregor L, Mabon E, Bawa S, Bond U, Swan J, O'Connor MB, Rathi J, Regan MJ, Phelan MJ, Doherty T, Martin K, Ruth C, Panthakalam S, Bondin D, Castelino M, Evin S, Gooden A, Peacock C, Teh LS, Ryan SJ, Bryant E, Carter A, Cox S, Moore AP, Jackson A, Kuisma R, Pattman J, Juarez M, Quilter A, Williamson L, Collins D, Price E, Chao Y, Mooney J, Watts R, Graham K, Birrell F, Reed M, Croyle S, Stell J, Vasireddy S, Storrs P, McLoughlin YM, Scott G, McKenna F, Papou A, Rahmeh FH, Richards SC, Westlake SL, Birrell F, Morgan L, Baqir W, Walsh NE, Ward L, Caine R, Williams M, Breslin A, Owen C, Ahmad Y, Morgan L, Blair A, Birrell F, Ramachandran Nair J, Zia A, Mewar D, Peffers GM, Larder R, Dockrell D, Wilson S, Cummings J, Bansal J, Barlow J. BHPR: Audit/Service Delivery [239-277]: 239. Arma-Based Audit of Rheumatology Service Delivered Predominantly Outside the Traditional Hospital Setting. Rheumatology (Oxford) 2010. [DOI: 10.1093/rheumatology/keq730] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Chen H, Huang X, Guo X, Mailman RB, Park Y, Kamel F, Umbach DM, Xu Q, Hollenbeck A, Schatzkin A, Blair A. Smoking duration, intensity, and risk of Parkinson disease. Neurology 2010; 74:878-84. [PMID: 20220126 DOI: 10.1212/wnl.0b013e3181d55f38] [Citation(s) in RCA: 156] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To evaluate the relative importance of smoking duration vs intensity in reducing the risk of Parkinson disease (PD). METHODS The study included 305,468 participants of the NIH-AARP Diet and Health cohort, of whom 1,662 had a PD diagnosis after 1995. We estimated odds ratios (OR) and 95% confidence intervals from multivariate logistic regression models. RESULTS Compared with never smokers, the multivariate ORs were 0.78 for past smokers and 0.56 for current smokers. Among past smokers, a monotonic trend toward lower PD risk was observed for all indicators of more smoking. Stratified analyses indicated that smoking duration was associated with lower PD risk within fixed intensities of smoking. For example, compared with never smokers, the ORs among past smokers who smoked >20 cigarettes/day were 0.96 for 1-9 years of smoking, 0.78 for 10-19 years, 0.64 for 20-29 years, and 0.59 for 30 years or more (p for trend = 0.001). In contrast, at fixed duration, the typical number of cigarettes smoked per day in general was not related to PD risk. Close examination of smoking behaviors in early life showed that patients with PD were less likely to be smokers at each age period, but if they smoked, they smoked similar numbers of cigarettes per day as individuals without PD. CONCLUSIONS This large study suggests that long-term smoking is more important than smoking intensity in the smoking-Parkinson disease relationship.
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Affiliation(s)
- H Chen
- Epidemiology Branch, National Institute of Environmental Health Sciences, 111 T.W. Alexander Dr., PO Box 12233, Mail drop A3-05, Research Triangle Park, NC 27709, USA.
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De Roos AJ, Davis S, Colt JS, Blair A, Airola M, Severson RK, Cozen W, Cerhan JR, Hartge P, Nuckols JR, Ward MH. Residential proximity to industrial facilities and risk of non-Hodgkin lymphoma. Environ Res 2010; 110:70-8. [PMID: 19840879 PMCID: PMC2795078 DOI: 10.1016/j.envres.2009.09.011] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2009] [Revised: 09/08/2009] [Accepted: 09/24/2009] [Indexed: 05/05/2023]
Abstract
Industrial pollution has been suspected as a cause of non-Hodgkin lymphoma (NHL), based on associations with chemical exposures in occupational studies. We conducted a case-control study of NHL in four SEER regions of the United States, in which residential locations of 864 cases and 684 controls during the 10 years before recruitment were used to characterize proximity to industrial facilities reporting chemical releases to the Environmental Protection Agency's Toxics Release Inventory (TRI). For each of 15 types of industry (by 2-digit SIC code), we evaluated the risk of NHL associated with having lived within 2 miles of a facility, the distance to the nearest facility (miles categories of < or =0.5, >0.5-1.0, >1.0-2.0, >2 [referent]), and the duration of residence within 2miles (years categories of 10, 1-9, 0 [referent]), using logistic regression. Increased risk of NHL was observed in relation to lumber and wood products facilities (SIC 24) for the shortest distance of residential proximity (< or =0.5 mile: odds ratio [OR]=2.2, 95% confidence interval [CI]: 0.4-11.8) or the longest duration (10 years: OR=1.9, 95% CI: 0.8-4.8); the association with lumber facilities was more apparent for diffuse large B-cell lymphoma (lived within 2 miles: OR=1.7, 95% CI: 1.0-3.0) than for follicular lymphoma (OR=1.1, 95% CI: 0.5-2.2). We also observed elevated ORs for the chemical (SIC 28, 10 years: OR=1.5, 95% CI: 1.1-2.0), petroleum (SIC 29, 10 years: OR=1.9, 95% CI: 1.0-3.6), rubber/miscellaneous plastics products (SIC 30, < or =0.5mile: OR=2.7, 95% CI: 1.0-7.4), and primary metal (SIC 33, lived within 2miles: OR=1.3, 95% CI: 1.0-1.6) industries; however, patterns of risk were inconsistent between distance and duration metrics. This study does not provide strong evidence that living near manufacturing industries increases NHL risk. However, future studies designed to include greater numbers of persons living near specific types of industries, along with fate-transport modeling of chemical releases, would be informative.
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Affiliation(s)
- A J De Roos
- Fred Hutchinson Cancer Research Center and the University of Washington Department of Epidemiology, 1100 Fairview Avenue North, M4-B874, Seattle, WA 98109-1024, USA.
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Blair A, Daynes N, Hamilton D, Horne G, Heard PJ, Hodgson DZL, Scott TB, Shterenlikht A. Residual stress relaxation measurements across interfaces at macro-and micro-scales using slitting and DIC. ACTA ACUST UNITED AC 2009. [DOI: 10.1088/1742-6596/181/1/012078] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Hosgood HD, Chapman R, Shen M, Blair A, Chen E, Zheng T, Lee KM, He X, Lan Q. Portable stove use is associated with lower lung cancer mortality risk in lifetime smoky coal users. Br J Cancer 2008; 99:1934-9. [PMID: 19034286 PMCID: PMC2600700 DOI: 10.1038/sj.bjc.6604744] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [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: 12/02/2022] Open
Abstract
Domestic fuel combustion from cooking and heating, to which about 3 billion people worldwide are exposed, is associated with increased lung cancer risk. Lung cancer incidence in Xuanwei is the highest in China, and the attributable risk of lung cancer from unvented smoky coal burning is greater than 90%. To evaluate any lung cancer mortality reduction after changing from unvented stoves to portable stoves, we used lifetime smoky coal users in a retrospective cohort of all farmers born during 1917–1951 and residing in Xuanwei in 1976. Of the 42 422 enrolled farmers, 4054 lifetime smoky coal users changed to portable stoves, 4364 did not change, and 1074 died of lung cancer. Lung cancer morality associated with stove change was assessed by product-limit survival curves and multivariate Cox regression models. Both men (P<0.0001) and women (P<0.0001) who changed to portable stoves had a significantly increased probability of survival compared with those who did not change. Portable stoves were associated with decreased risk of lung cancer mortality in male participants (hazard ratio (HR)=0.62, 95% confidence interval (CI)=0.46–0.82) and female participants (HR=0.41, 95% CI=0.29–0.57). Portable stove use is associated with reduced lung cancer mortality risk, highlighting a cost-effective intervention that could substantially benefit health in developing countries.
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Affiliation(s)
- H D Hosgood
- Division of Cancer Epidemiology and Genetics, Department of Health and Human Services, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892-7240, USA.
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Purdue MP, Severson RK, Colt JS, Stewart P, De Roos AJ, Cerhan JR, Cozen W, Davis S, Hartge P, Schenk M, Blair A. Degreasing and risk of non-Hodgkin lymphoma. Occup Environ Med 2008; 66:557-60. [PMID: 19017696 DOI: 10.1136/oem.2008.040386] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVE To investigate the relationship between selected solvent-related workplace tasks (degreasing, painting, gluing, stripping paint, staining) and risk of non-Hodgkin lymphoma (NHL). METHODS We analysed occupational data from a large population-based case-control study of NHL conducted in the USA. For participants reporting occupations with possible exposure to organic solvents, job-specific interview modules were administered to elicit in-depth information on solvent-related workplace tasks and other exposure-related factors (225 cases, 189 controls). Unconditional logistic regression models were fit to calculate odds ratios (ORs) and 95% CI for average frequency, maximal frequency and cumulative number of hours having performed each task. Individuals with jobs rated as unexposed to organic solvents in the workplace (180 cases, 213 controls) were used as a reference group. RESULTS We observed an increased risk of NHL among subjects in the highest category of maximal degreasing frequency (>520 h/year: OR 2.1, 95% CI 0.9 to 4.9, trend test p = 0.02). We found similar associations for the highest levels of average frequency and, among men, cumulative number of hours. Other solvent-related tasks were not associated with NHL. CONCLUSION Findings from this case-control analysis of solvent-related tasks suggest that frequent degreasing work may be associated with an elevated risk of NHL.
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Affiliation(s)
- M P Purdue
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, EPS 8114, 6120 Executive Blvd, Bethesda, MD 20892, USA.
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Bugawan T, Isoda W, Mano C, Blair A, Mallal S, Thorborn D, Erlich H. 163-P: HLA-B*5701 Taqman assay for abacavir sensitivity; application to PREDICT-1 trials. Hum Immunol 2008. [DOI: 10.1016/j.humimm.2008.08.182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Schenk M, Purdue MP, Colt JS, Hartge P, Blair A, Stewart P, Cerhan JR, De Roos AJ, Cozen W, Severson RK. Occupation/industry and risk of non-Hodgkin's lymphoma in the United States. Occup Environ Med 2008; 66:23-31. [PMID: 18805886 DOI: 10.1136/oem.2007.036723] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
AIMS To identify occupations and industries associated with non-Hodgkin's lymphoma (NHL) in a large population-based, case-control study in the USA. METHODS Cases (n = 1189) of histologically confirmed malignant NHL ages 20-74 were prospectively identified in four geographic areas covered by the National Cancer Institute SEER Program. Controls (n = 982) were selected from the general population by random digit dialling (<65 years of age) and from residents listed in Medicare files (65-74 years of age). Odds ratios and 95% confidence intervals for occupations and industries were calculated by unconditional logistic regression analyses, adjusting for age, gender, ethnicity and study centre. Further analyses stratified for gender and histological subtype were also performed. RESULTS Risk of NHL was increased for a few occupations and industries. Several white collar occupations, with no obvious hazardous exposures, had elevated risks, including purchasing agents and buyers, religious workers, physical therapists and information clerks. Occupations with excesses that may have exposures of interest include launderers and ironers, service occupations, food/beverage preparation supervisors, hand packers and packagers, roofing and siding, leather and leather products, transportation by air, nursing and personal care facilities, and specialty outpatient clinics. Significantly decreased risks of NHL were found for a number of occupations and industries including post-secondary teachers and chemical and allied products. CONCLUSIONS The results of this study suggest that several occupations and industries may alter the risk of NHL. Our results support previously reported increased risks among farmers, printers, medical professionals, electronic workers and leather workers. These findings should be evaluated further in larger studies that have the power to focus on specific exposures and histological subtypes of NHL.
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Affiliation(s)
- M Schenk
- Department of Family Medicine and Public Health Sciences, Karmanos Cancer Institute, Wayne State University, Detroit, Michigan 48201, USA.
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Mannetje AT, Dryson E, Walls C, McLean D, McKenzie F, Maule M, Cheng S, Cunningham C, Kromhout H, Boffetta P, Blair A, Pearce N. High risk occupations for non-Hodgkin's lymphoma in New Zealand: case-control study. Occup Environ Med 2008; 65:354-63. [DOI: 10.1136/oem.2007.035014] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Eichler H, Nguyen XD, Roelen D, Celluzzi CM, McKenna D, Pamphilon D, Blair A, Read EJ, Takahashi TA, Szczepiorkowski ZM. Multicenter study on in vitro characterization of dendritic cells. Cytotherapy 2008; 10:21-9. [PMID: 18202971 DOI: 10.1080/14653240701744263] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [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: 10/22/2022]
Abstract
BACKGROUND There is growing interest in the use of in vitro-expanded dendritic cells (DC) in cancer immunotherapy as cellular-based vaccines. However, the methods used for in vitro preparation vary widely between institutions. Therefore, a strong need exists for standardization, characterization and quality control (QC) of such vaccines. A first prospective multicenter pilot study was performed to investigate basic QC parameters of frozen/thawed DC. The study design was focused on comparison of test results for cell counts, immunophenotyping and cell viability. METHODS CD14+ monocytes were isolated from three healthy volunteers. The cells were expanded in vitro, matured and cryopreserved using a standardized protocol in one laboratory. The aliquots of cryopreserved DC and a panel of reagents were shipped to eight laboratories worldwide. The objective was to compare the results of non-functional QC assays between sites by testing identical DC vaccines and using a pre-defined test protocol. RESULTS Measurements of nucleated cell (NC) content of thawed DC vaccines with different types of hematology analyzers (HA) gave similar results for the majority of sites. Immunophenotyping using identical clones of monoclonal antibodies for the detection of surface antigens (i.e. CD1a, CD14, CD16, CD83, CD86 and HLA-DR) provided mostly comparable results between laboratories with an acceptable level of variation. In contrast, highly different results between study sites were generated for measuring the viability of thawed DC by flow cytometry using 7-amino-actinomycin D (7-AAD) dye exclusion. DISCUSSION In characterizing frozen/thawed DC vaccines, NC counts generated by HA yielded similar results between different laboratories. Furthermore, immunophenotyping of DC vaccines can be standardized between centers, i.e. by using identical reagents. Because of highly variable results between laboratories, 7-AAD viability testing of thawed DC needs to be studied further to identify potential causes for the observed variability.
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Affiliation(s)
- H Eichler
- Institute of Transfusion Medicine and Immunology, Faculty of Clinical Medicine Mannheim, University of Heidelberg, Heidelberg, Germany
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Jin Y, Deddens JA, Saejiw N, Chaiear N, Ngoencharee J, Sadhra S, Coble JB, Vermeulen RCH, Ji BT, Xue S, Dosemeci M, Lu W, Zheng W, Gao YT, Blair A, Chow WH, Rothman N, Kromhout H, Fransman W, de Vocht F, van Wendel de Joode B, Neitzel RL, Daniell WE, Davies HW, Sheppard L, Seixas NS, Teschke K, Johnson P, Trask C, Chow Y, Village J, Koehoorn M. Exposure assessment 2. Occup Environ Med 2007. [DOI: 10.1136/oem.64.12.e18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Alexander BH, Church TR, Reding DJ, Lu J, Rafnsson V, Vermeulen R, Bakke B, Beane-Freeman L, Stewart P, Blair A, Barr DB, Lynch CF, Allen R, Alavanja M, De Roos A, Nordby KC, Hostmark AT, Kristensen P, Rusiecki J, Patel R, Blair A, Dosemeci M, Hoppin J, Alavanja M. Agriculture 1. Occup Environ Med 2007. [DOI: 10.1136/oem.64.12.e39] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Freeman LEB, Blair A, Ahonen EQ, Porthe V, Benavides FG, Benach J, Hazarika R, Baldi I, Lebailly P, Barrau M, Bouchart V, Lecluse Y, Garrigou A, Chang YC, Lu JL, Schmeisser N, Mester B, Ahrens W, Lebailly P, Niez E, Baldi I, Leveque N, Meyer C, Commitee A. Agriculture 2. Occup Environ Med 2007. [DOI: 10.1136/oem.64.12.e43] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Bonde JP, Rosenkilde M, Toft G, Thulstrup AM, Olsen J, Brouwers MM, van Tongeren M, Hirst AA, Roeleveld N, Mester B, Schmeisser N, Ahrens W, Mohner M, Gellissen J, Sallmen M, Hoppin JA, Sandler DP, Blair A, Baird DD, Toft G, Rylander L, Giwercman A, Spano M, Manicardi GC, Bizzaro D, Ludwicki JK, Zvyezday V, Bonefeld-Jorgensen EC, Pedersen HS, Bonde JP. Reproductive 1 mini-symposium. Occup Environ Med 2007. [DOI: 10.1136/oem.64.12.e16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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