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本文根据本研究基本设计模式,对干预后七城市总样本人群115065人及队列人群36919人进行脑卒中发病率的纵向监测(1986～1990年)和比较,同时对干预与对照两组人群之间的脑卒中发病率进行对比分析.结果显示:①1990年底干预组人群脑卒中发病率比基线调查时发病率明显下降,而对照组变化不明显;②干预组与对照组、包括队列人群各亚组之间的对比,干预组脑卒中发病率的下降幅度明显大于对照组,统计学有显著性差异.
Based on the basic design pattern of this study, 115065 total population and 36919 people in the cohort after the intervention were monitored longitudinally (from 1986 to 1990) and compared with the intervention and control groups The incidence of stroke was compared and analyzed.Results: ①The morbidity rate of stroke in the intervention group was significantly lower than that of the baseline survey in the end of 1990, while the change in the control group was insignificant; ② The intervention group and the control group, including the subgroup of cohort Between the intervention group, the incidence of stroke decreased significantly more than the control group, there was a statistically significant difference.