Abstract:
AIMS:To evaluate the association between occupational and leisure-time physical activity (PA), ownership of goods promoting sedentary behaviour, and the risk of myocardial infarction (MI) in different socio-economic populations of the world. Studies in developed countries have found low PA as a risk factor for cardiovascular disease; however, the protective effect of occupational PA is less certain. Moreover, ownership of goods promoting sedentary behaviour may be associated with an increased risk. METHODS:In INTERHEART, a case-control study of 10 043 cases of first MI and 14 217 controls who did not report previous angina or physical disability completed a questionnaire on work and leisure-time PA. RESULTS:Subjects whose occupation involved either light [multivariable-adjusted odds ratio (OR) 0.78, confidence interval (CI) 0.71-0.86] or moderate (OR 0.89, CI 0.80-0.99) PA were at a lower risk of MI, whereas those who did heavy physical labour were not (OR 1.02, CI 0.88-1.19), compared with sedentary subjects. Mild exercise (OR 0.87, CI 0.81-0.93) as well as moderate or strenuous exercise (OR 0.76, CI 0.69-0.82) was protective. The effect of PA was observed across countries with low, middle, and high income. Subjects who owned both a car and a television (TV) (multivariable-adjusted OR 1.27, CI 1.05-1.54) were at higher risk of MI compared with those who owned neither. CONCLUSION:Leisure-time PA and mild-to-moderate occupational PA, but not heavy physical labour, were associated with a reduced risk, while ownership of a car and TV was associated with an increased risk of MI across all economic regions.
journal_name
Eur Heart Jjournal_title
European heart journalauthors
Held C,Iqbal R,Lear SA,Rosengren A,Islam S,Mathew J,Yusuf Sdoi
10.1093/eurheartj/ehr432subject
Has Abstractpub_date
2012-02-01 00:00:00pages
452-66issue
4eissn
0195-668Xissn
1522-9645pii
ehr432journal_volume
33pub_type
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