Smoking and risk of myocardial infarction in Copenhagen men aged 40-59 with special reference to cheroot smoking.

A 5-year and 7-year follow-up study on 5249 Copenhagen men showed a relationship between smoking habits at the time of entry into the study and incidence of lethal and non-lethal myocardial infarction. With a relative risk of 4.2, heavy cheroot smokers had a higher risk of myocardial infarction than cigarette smokers (relative risk 2.1) and never-smokers. A multiple regression analysis indicates that cheroot smoking is an independent coronary risk factor.