论文部分内容阅读
本文利用一个基于全人群的大肠癌危险因素病例对照研究资料,来评价快速流行病学评价法抽样方法的实用价值;并与对同一总体的整群及完全单纯随机抽样方法作了比较。结果表明整群、快速流行病学评价法和单纯随机抽样的样本暴露率在α=0.05水平上对总体的错估率分别为21.9%、9.4%和0;32项因素的样本率与相应总体率之间的平均误差分别为:0.043、0.028和0.021,且快速流行病学评价法抽样误差与单纯随机抽样的误差无显著差异(P>0.05)。
In this paper, a case-control study of risk factors of colorectal cancer based on the whole population was used to evaluate the practical value of the rapid epidemiological sampling method and to compare with the same overall population and complete simple random sampling method. The results showed that the overall misclassification rates of the population, rapid epidemiological evaluation and simple random samples were 21.9%, 9.4% and 0 respectively at the level of α = 0.05. The sample rates of 32 factors were significantly lower than those of the corresponding population The average error between the rates was 0.043, 0.028 and 0.021, respectively, and there was no significant difference between the sampling errors of the rapid epidemiological evaluation method and the random sampling alone (P> 0.05).