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  • Title: Intermittent claudication in Quebec men from 1974-1986: the Quebec Cardiovascular Study.
    Author: Dagenais GR, Maurice S, Robitaille NM, Gingras S, Lupien PJ.
    Journal: Clin Invest Med; 1991 Apr; 14(2):93-100. PubMed ID: 2060193.
    Abstract:
    The incidence and risk factors of intermittent claudication (IC) and its association with coronary heart disease were evaluated in a cohort of 4570 men, aged 35 to 64 in 1973, free of cardiovascular diseases and followed for 12 years. During the follow-up, 188 developed IC, an annual incidence of 41/10,000. The risk of IC increased with age. In comparison to the rest of the cohort, men with IC were older and had a higher prevalence of smoking, elevated blood pressure, and diabetes. Cigarette smoking was the predominant factor, quadrupling the risk of IC compared to those who never smoked, while those who stopped smoking one year before the study had a risk similar to non-smokers. Quintile 5 of systolic blood pressure doubled the risk of IC. Diabetes requiring a pharmacological treatment at entry in the study was significantly more prevalent in men with than in men without IC (7.5% vs 1.5%). There was no significant relationship between IC and serum cholesterol, body weight, or number of years at school. During the follow-up, 84 of the 188 men with IC had a coronary heart disease event, angina being the most frequent manifestation. Furthermore, 11% of men with IC died and in nearly two-thirds of these, death was attributable to coronary heart disease; this was twice the rate observed in the other men. In these Quebec men, IC is a common health problem and is associated with a high rate of coronary heart disease. Since IC is related to modifiable risk factors, primary prevention of these factors appears warrant.
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