Oral Contraception and Stroke
نویسنده
چکیده
Background and Purpose A nested case-control analysis of data collected during the prospective Royal College of General Practitioners' Oral Contraception Study was performed to examine the relation between use of oral contraception and risk of stroke. Methods The 253 women who had a first-ever stroke (International Classification of Diseases, eighth revision, codes 4300 to 4389) or amaurosis fugax (code 3791) between 1968 and 1990 (case subjects) were compared with 759 women who did not have this diagnosis (control subjects). Results Smoking, social class, and history of hypertension were found to be important risk factors for stroke. Women who had ever used oral contraceptives had an increased risk of all stroke (odds ratio, 1.5; 95% confidence interval, 1.1 to 2.0,
منابع مشابه
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