Competing risks analysis of the case-cohort design
病例队列设计的竞争风险分析
The case-cohort design has been put forward as an alternative design in epidemiological follow-up studies which is less expensive than a full-scale cohort study. In this design, all cases are assembled together with a randomly selected sub-cohort which is then used as a comparison group, one advantage being that the same sub-cohort may serve as a comparison group for a number of different case series. However, the fact that all case groups are compared with the same…