Abstract
A cohort of 957 male persons in Shanghai has been followed up for 12 years after they entered a screening program for coronary heart disease and stroke. During the period of study, 24 of the subjects who had no previous history of heart disease and stroke died from stroke. Risk factors for stroke were analyzed by the Cox proportional hazards model. Coal fumes were found to be an independent risk factor for stroke in addition to diastolic blood pressure, age, and cigarette smoking.
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