We consider a general proportional odds model for survival data under binary treatment, where the functional form of the covariates is left unspecified. We derive the efficient score for the conditional survival odds ratio given the covariates using modern semiparametric theory. The efficient score may be useful in the development of doubly robust estimators, although computational challenges remain.

翻译：我们考虑二元治疗下生存数据的一般比例优势模型，其中协变量的函数形式未加指定。利用现代半参数理论，我们推导了给定协变量条件下条件生存优势比的高效评分。该高效评分可能有助于双重稳健估计量的开发，尽管计算挑战依然存在。