倾向得分匹配(Propensity Score Matching) 的通俗解析及在Stata里的运用徐惟能· 4 个月前倾向得分匹配法是一种研究方法，它在研究某项治疗、政策、或者其他事件的影响因素上很常见。
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作者将关心的主变量TTI进行了分类处理，将延迟治疗时间分了4类:TTI was a categorical variable with 4 levels: 8 to 60， 61 to 120， 121 to 180， and greater than 180 days。
参考文献:1. de Graaff MR， Klaase JM， den Dulk M， et al. Trends and overall survival after combined liver resection and thermal ablation of colorectal liver metastases: a nationwide population-based propensity score-matched study. HPB : the official journal of the International Hepato Pancreato Biliary Association. 2024;
Yue Ming＃， Fengjiang Zhang＃， Yuanyuan Yao＃， Zhenzhen Cheng， Lina Yu， Dawei Sun， Kai Sun， Yang Yu， Mingxia Liu， Longfei Ma， Yuxin HuangYang， Min Yan*. Large volume acute normovolemic hemodilution in patients undergoing cardiac surgery with intermediate-high risk of transfusion: A randomized controlled trial. J Clin Anesth， 2023 Feb 26;
Meng， X.， Zheng， A.， Wang， J. et al. Nimotuzumab plus concurrent chemo-radiotherapy in unresectable locally advanced oesophageal squamous cell carcinoma : interim analysis from a Phase 3 clinical trial. Br J Cancer 129， 1787–1792 .
