alexa Work Stress And Risk Of Cardiovascular Mortality: Prospective Cohort Study Of Industrial Employees
Medicine

Medicine

Internal Medicine: Open Access

Author(s): Mika Kivimki, Pivi LeinoArjas, Ritva Luukkonen, Hilkka Riihimki, Jussi Vahtera

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Objective To examine the association between work stress, according to the job strain model and the effort-reward imbalance model, and the risk of death from cardiovascular disease. Design Prospective cohort study. Baseline examination in 1973 determined cases of cardiovascular disease, behavioural and biological risks, and stressful characteristics of work. Biological risks were measured at 5 year and 10 year follow up. Setting Staff of a company in the metal industry in Finland. Participants 812 employees (545 men, 267 women) who were free from cardiovascular diseases at baseline. Main outcome measure Cardiovascular mortality 1973-2001 from the national mortality register. Results Mean length of follow up was 25.6 years. After adjustment for age and sex, employees with high job strain, a combination of high demands at work and low job control, had a 2.2-fold (95% confidence interval 1.2 to 4.2) cardiovascular mortality risk compared with their colleagues with low job strain. The corresponding risk ratio for employees with effort-reward imbalance (low salary, lack of social approval, and few career opportunities relative to efforts required at work) was 2.4 (1.3 to 4.4). These ratios remained significant after additional adjustment for occupational group and biological and behavioural risks at baseline. High job strain was associated with increased serum total cholesterol at the 5 year follow up. Effort-reward imbalance predicted increased body mass index at the 10 year follow up. Conclusions High job strain the effort-reward imbalance seem to increase the risk of cardiovascular mortality. The evidence from industrial employees suggests that attention should be paid to the prevention of work stress.

This article was published in British Medical Journal and referenced in Internal Medicine: Open Access

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