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This report is along the first to examine the risk factors for SCI in the general population and finds a relatively high overall prevalence(11%). There is an ordered relationship between increasing exposure to cigarette smoke and the presence of SCI that parallels the relationship between smoking and carotid atherosclerosis.The magnitude of the association with smoking is substantial compared with the effect of hypertension and other traditional cerebrovascular risk factors.The reduction in prevalence of SCI between current and past smokers and the trend that increased pack years of smoking is related to the increased prevalence of SCI are both additional arguments for smoking avoidance and cessation. |
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