中国农村脑血管病的流行病学——患病率分析

EPIDEMIOLOGY OF CEREBROVASCULAR DISEASE IN RURAL AREAS OF CHINA: AN ANALYSIS OF THE PREVALENCE RATES

我们采用回顾性现状调查的方法调查了中国农村1986年12月31日脑血管病的时点患病率。在从全国抽取的127个调查点调查了3478345人,发现当日患脑血管病例数为6025例,患病率为173.21/10万,患病率的95%置信区间为168.84～177.58/10万。用中国1982年人口标化后为143.25/10万,用世界标准人口标化后为193.56/10万。分析发现,中国农村脑血管病的时点患病率具有从南向北逐渐升高的趋势;居住地区的高度和脑中风患病率之间有负相关和线性回归关系,粗患病率和高度,r=0.9288,Y=196.58—0.0595x(P<0.01),标化患病率和高度,r=0.9744,Y=163.64—0.0386x(P<0.01)。城市的患病率比农村高,男性比女性高。

The point prevalence rate of stroke in rural areas of China in Dec. 31, 1986 was investigated using retrospective section study. Of 3,478,345 people in 127 locations sampled from national rural areas, 6,025 stroke cases were found and the point prevalence rate was 173.21/100,000 people with a 95% CI 168.84～177.58/100,000 people. The prevalence rate standardized by the direct method using P. R. China population ih 1982 was 143.25/100,000 peo- ple and the prevalence rate standardized using the world standard population was 193.56 per 100,000 people. It was found a tendence that the preva- lence rates increased gradualy from the south to the north. There were neg- ative correlation and linear regression between the prevalence rates and alt- itute from the sea level in living place with r=-0.9288, Y=196.58-0.0495x (P<0.01) for crude rates and r=-0.9744, Y=163.94-0.0386x (P<0.01), for rates standardized. The rates were higher in the cities than rural areas and that were higher in men than women.