Misspecified proportional hazard models and confirmatory analysis of survival data
误设比例风险模型与生存数据的验证性分析
In survival analysis of follow‐up studies with staggered entry, it may be requested to examine a chance finding at an interim analysis in a confirmatory analysis based on ‘independent evidence’. Keiding et al. (1987) suggested incorporating residual lifetimes of initial survivors into the confirmatory analysis and indicated heuristically that this provides valid independent evidence, assuming that the statistical model is true. The present paper provides a full mathematical…