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2001 MAY 17 - (NewsRx Network) -- Current use of oral contraceptives (OCs) is unrelated to an increased risk of a nonfatal first myocardial infarction (MI) among women who do not smoke or who smoke fewer than 25 cigarettes a day, according to an article in the April 23, 2001, issue of the Archives of Internal Medicine.
But researchers did find that current OC use seems to increase the risk among smokers of 25 or more cigarettes per day.
Lynn Rosenberg, ScD, from the Slone Epidemiology Unit, Boston University School of Public Health, Brookline, Massachusetts, and colleagues assessed whether use of the newer lower-dose OCs increases the risk of MI. Previous studies of OCs containing 50 micrograms or more of estrogen have suggested an increased risk of MI (heart attack) among current users, particularly if they smoke heavily.
The current study was conducted from January 1985 through March 1998 in 75 hospitals in the greater-Boston and ...