摘要
该文提出了应用活病例及其亲属提供的病例的暴露资料对死亡病例的亲属提供的信息中的二值变量和等级变量校正方法,并对校正前后的结果进行比较,表明有较大的差异。同时指出此校正方法的适用范围。
n a case-control study, the
epidemiologists are forced to use surrogate variable in place of factors which they are unable
to measure dircctly due to thdeath of cases.The surrogate variable will result in
misclassification and influ-ence the results of study.This paper introduced a method of
correction of information obtained from the surrogate.The surrogate variable was corrected by
means of an esti-mated reclassification matrix base on the responses fromliving cases for
whom a surrogate was also interviewed.
出处
《中国慢性病预防与控制》
CAS
1995年第3期126-129,共4页
Chinese Journal of Prevention and Control of Chronic Diseases
关键词
疾病
病例对照研究
校正方法
Case-control study SurrogateMethod of
corrcction,estimated reclassification matrix