膳食营养因素与脑卒中患病率相互关系的流行病学研究

目的:研究膳食中营养因素与脑卒中患病率的关系。方法：采用简单相关和逐步回归方法分析全国143个调查点居民1984-1986年各种食物营养因素摄入与1986年脑卒中患病率的关系。结果：蛋白质、糖类、钙与患病率呈负相关，维生素A、锌、铁与之呈正相关。结论：膳食营养结构对脑卒中患病有一定影响，高蛋白和高钙摄入是脑卒中的保护因素，而维生素A可能是脑卒中的危险因素。

Epidemiological study on the relationship between diet nutrition and the prevalence rate of stroke

Objective:To study the relationship between diet nutrition and the prevalence rate of stroke. Methods:By force of stepwise regression analysis,we analyse the data of prevalence of stroke in 1986 and the cross sectional study data of diet intake from 1984 to 1986 in 143 survey areas in China. Results: There was a negative association between protein, carbohydrate, calcium and the prevalence rate of stroke. By contrary, there was a positive association between other nutrition factors intake and the prevalence rate of the stroke. Conclusion: The dietary factors have some influences on the prevalence of stroke. High protein and high calcium intake are protective factors of stroke, on the contrary, vitamin A may be a risk factor of stroke.