Peter Smith1,2,3, Mahee Gilbert-Ouimet4,5, Chantal Brisson5,6, Richard H Glazier7,8,9,10, Cameron A Mustard11,12. 1. Institute for Work & Health, 481 University Avenue, Suite 800, Toronto, ON, M5G 2E9, Canada. psmith@iwh.on.ca. 2. Department of Epidemiology and Preventive Medicine, Monash University, 553 St Kilda Road, Melbourne, VIC, 3004, Australia. psmith@iwh.on.ca. 3. Dalla Lana School of Public Health, University of Toronto, 155 College St Room 500, Toronto, ON, M5T 3M7, Canada. psmith@iwh.on.ca. 4. Department of Health Sciences, Université du Québec à Rimouski, Campus de Lévis, 1595, boul. Alphonse-Desjardins, Lévis, QC, G6V 0A6, Canada. 5. Axe santé des populations et pratiques optimales en santé, Centre de recherche FRQS du CHU de Quebec City, 1050, chemin Sainte-Foy, local K0-03, Québec, QC, G1S 4L8, Canada. 6. Département de médecine sociale et préventive, Université Laval, Pavillon Ferdinand-Vandry, 1050, avenue de la Médecine, Québec, QC, G1V 0A6, Canada. 7. Institute for Clinical Evaluative Sciences, G1 06, 2075 Bayview Avenue, Toronto, ON, M4N 3M5, Canada. 8. Department of Family and Community Medicine, Dalla Lana School of Public Health, Health Sciences Building, 155 College Street, 6th floor, Toronto, ON, M5T 3M7, Canada. 9. The Institute of Health Policy, Management and Evaluation at University of Toronto, 155 College Street, 4th Floor, Toronto, ON, M5T 3M6, Canada. 10. Centre for Urban Health Solutions, Li Ka Shing Knowledge Institute, St. Michael's Hospital, 30 Bond Street, Toronto, ON, M5B 1W8, Canada. 11. Institute for Work & Health, 481 University Avenue, Suite 800, Toronto, ON, M5G 2E9, Canada. 12. Dalla Lana School of Public Health, University of Toronto, 155 College St Room 500, Toronto, ON, M5T 3M7, Canada.
Abstract
OBJECTIVES: To examine the relationship between job strain and incident myocardial infarction and congestive heart failure in a representative population of men and women in Ontario, Canada, over a 15-year period. METHODS: A total of 14,508 respondents having provided responses to either the 2000/2001, 2002, or 2003 cycles of the Canadian Community Health Survey (CCHS) were aged 35 and older at the time and working. After removing respondents with pre-existing heart disease and missing data, our sample totaled 13,291 respondents. Responses were linked to administrative health care and hospitalization data to capture incident cases of myocardial infarction and congestive heart failure up to March 31, 2017. Job control and psychological demands were assessed using 5 items and 2 items respectively. A series of time-to-event regression models were run, adjusting sequentially for socio-demographic variables and health, other psychosocial work exposures, and health behaviours and body mass index. RESULTS: Over the study period, there were 199,583 person-years of follow-up (median follow-up: 15 years, 233 days). Higher incidence rates were observed for men (6.69 per 100 persons) than for women (2.77 per 100 persons). No clear relationship was observed for demand-control exposures and incidence of myocardial infarction and congestive heart failure in either men or women. After adjustment for socio-demographic factors, pre-existing health conditions, and other psychosocial exposures, the hazard ratio for high strain exposure (compared with low strain exposure) was 0.92 (0.46-1.84) for women and 0.75 (0.44-1.27) for men. CONCLUSION: In this large prospective cohort in Canada, we observed no relationship between components of the demand-control model and incident myocardial infarction and congestive heart failure over a 15-year period.
OBJECTIVES: To examine the relationship between job strain and incident myocardial infarction and congestive heart failure in a representative population of men and women in Ontario, Canada, over a 15-year period. METHODS: A total of 14,508 respondents having provided responses to either the 2000/2001, 2002, or 2003 cycles of the Canadian Community Health Survey (CCHS) were aged 35 and older at the time and working. After removing respondents with pre-existing heart disease and missing data, our sample totaled 13,291 respondents. Responses were linked to administrative health care and hospitalization data to capture incident cases of myocardial infarction and congestive heart failure up to March 31, 2017. Job control and psychological demands were assessed using 5 items and 2 items respectively. A series of time-to-event regression models were run, adjusting sequentially for socio-demographic variables and health, other psychosocial work exposures, and health behaviours and body mass index. RESULTS: Over the study period, there were 199,583 person-years of follow-up (median follow-up: 15 years, 233 days). Higher incidence rates were observed for men (6.69 per 100 persons) than for women (2.77 per 100 persons). No clear relationship was observed for demand-control exposures and incidence of myocardial infarction and congestive heart failure in either men or women. After adjustment for socio-demographic factors, pre-existing health conditions, and other psychosocial exposures, the hazard ratio for high strain exposure (compared with low strain exposure) was 0.92 (0.46-1.84) for women and 0.75 (0.44-1.27) for men. CONCLUSION: In this large prospective cohort in Canada, we observed no relationship between components of the demand-control model and incident myocardial infarction and congestive heart failure over a 15-year period.
Authors: Yamna Taouk; Matthew J Spittal; Anthony D LaMontagne; Allison J Milner Journal: Scand J Work Environ Health Date: 2019-10-14 Impact factor: 5.024
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Authors: Jaskanwal D Sara; Megha Prasad; Mackram F Eleid; Ming Zhang; R Jay Widmer; Amir Lerman Journal: J Am Heart Assoc Date: 2018-04-27 Impact factor: 5.501