Study on Epidemiology of Cerebrovascular Disease in Urban and Rural Areas of China / 第二军医大学学报

ABSTRACT

A large-scale population survey has been made to clarify the degree of harm and feature of distribution of cerebrovascular disease (CVD) in China. The sample investigated was 5814851 from about a billion people in 29 provinces, municipal cities and autonomous regions except Taiwan in China. The incidence, prevalence and mortality rates have been standardized by the direct method using the world standard population. It has been found that the incidence rate of CVD in China was 109.95 per 100 000 people in 1986 and its 95%CI (confidence interval) was 107. 25 ~ 112. 65 per 100000. The age-standardized incidence rate was 115.87/100000. The point prevalence rate of CVD in China was 245.49 per 100000 people on December 31, 1986 and its 95%CI was 241.57-249.61 per 100000, with an age-standardized prevalence rate of 259.86 per 100000. The mortality rate of CVD was 76.78 per 100000 in 1986 and its 95%CI 74.52~79.04 per 100000, with an age-standardized mortality rate of 80.94 per 100000. It has also been found that there was a tendency for the rates to increase gradually from south to north and to decrease progressively from east to west. The models of linear regression have been established between latitude and rates as well as between longitude and rates, respectively. The incidence, prevalence and mortality rates of CVD differ significantly in various topographic areas. They were much higher in cities than in rural areas, and much higher in men than in women. The incidence, prevalence and mortality rates increased with the age, and their relationships were fitted with logistic curve, respectively.