Invited commentary: propensity scores.
Invited commentary: propensity scores.
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DOI：
10.1093/oxfordjournals.aje.a010011
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发表时间：
1999-08
影响因子：
5
通讯作者：
M. Joffe;P. Rosenbaum
中科院分区：
文献类型：
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作者：
M. Joffe;P. Rosenbaum
倾向性得分是在给定观察到的协变量的情况下暴露于某种治疗的条件概率。在一项队列研究中，倾向评分在单一变量上匹配或分层处理和对照受试者，倾向于平衡所有观察到的协变量；然而，与随机分配处理不同，倾向评分可能也不会平衡未观察到的协变量。作者回顾了倾向分数的用途和局限性，并简要概述了相关的统计理论。他们还提出了在病例队列研究中使用倾向评分的新结果。
The propensity score is the conditional probability of exposure to a treatment given observed covariates. In a cohort study, matching or stratifying treated and control subjects on a single variable, the propensity score, tends to balance all of the observed covariates; however, unlike random assignment of treatments, the propensity score may not also balance unobserved covariates. The authors review the uses and limitations of propensity scores and provide a brief outline of associated statistical theory. They also present a new result of using propensity scores in case-cohort studies.