Detecting Bias Arising from Delayed Recording of Time
研究了当无法观察到自然时间起点而使用延迟时间起点时，生存时间对解释变量依赖关系中的偏差，并在英格兰和威尔士国家癌症登记数据中进行了理论分析和实证检验。
Summary Sometimes in studies of the dependence of survival time on explanatory variables the natural time origin for defining entry into study cannot be observed and a delayed time origin is used instead. For example, diagnosis of disease may in some patients be made only at death. The effect of such delays is investigated both theoretically and in the context of the England and Wales National Cancer Register.