相对生存率定义为研究人群的观察生存率与假定其为一般人群时的期望生存率之比,校正了诸如性别、年龄、年代等因素对研究人群生存情况的影响[1,2]。在分析比较时,两组或多组研究人群相对生存率的估计可以采用多种方法。但它们各自所代表的总体相对生存率是否相等,这是研究... The relative survival rate was defined as the ratio of the observed survival rate of the study population to the expected survival rate when it was assumed to be a general population, and the influence of factors such as gender, age, and age on the survival of the study population was corrected [1, 2]. When analyzing and comparing, the relative survival rate of two or more groups can be estimated using multiple methods. But whether their overall relative survival rates are equal, this is a study...