Long working hours increase heart disease risk – Study
Several observational studies have found an association of long work hours with an increased risk for cardiovascular illness.
Cardiovascular disease generally refers to conditions that involve narrowed or blocked blood vessels that can lead to a heart attack, chest pain (angina) or stroke.
Other heart conditions, such as those that affect the heart’s muscle, valves or rhythm, also are considered forms of heart disease. Now a new retrospective analysis has found that there is a dose-response relationship: more hours, more risk. Researchers began following 1,926 men and women in 1986, tracking their health and work history through 2011.
Over the course of the study 822 were given diagnoses of cardiovascular disease. After adjusting for age, sex, income and other factors, they found that for each additional hour of work per week over 10 years, there was a one per cent increase in the risk for heart disease. Compared with working 45 hours a week, working 55 hours increased the risk by 16 per cent, 60 hours by 35 per cent, 65 hours by 52 per cent, and 70 hours by 74 per cent.
Working 75 hours or more doubled the risk for a cardiovascular problem — angina, coronary heart disease, hypertension, stroke or heart attack.
Still, the lead author, Sadie H. Conway, an assistant professor at the University Of Texas School Of Public Health in the United States (U.S) does not recommend that anyone alter work hours based on her study.
SOURCE: newtelegraphonline.com
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