Propensity Score Matching: A Conceptual Review for Radiology Researchers

被引：131

作者：

Baek, Seunghee ^{[1
]}

Park, Seong Ho ^{[2
,3
]}

Won, Eugene ^{[4
]}

Park, Yu Rang ^{[5
]}

Kim, Hwa Jung ^{[1
,6
]}

机构：

[1] Asan Med Ctr, Dept Clin Epidemiol & Biostat, Seoul 138736, South Korea

[2] Univ Ulsan, Coll Med, Asan Med Ctr, Dept Radiol, Seoul 138736, South Korea

[3] Univ Ulsan, Coll Med, Asan Med Ctr, Res Inst Radiol, Seoul 138736, South Korea

[4] NYU, Langone Med Ctr, Dept Radiol, New York, NY 10016 USA

[5] Asan Med Ctr, Off Clin Res Informat, Seoul 138736, South Korea

[6] Univ Ulsan, Coll Med, Dept Prevent Med, Seoul 138736, South Korea

来源：

KOREAN JOURNAL OF RADIOLOGY | 2015年 / 16卷 / 02期

关键词：

Propensity score; Matching; Observational study; Indication bias; TRANSCATHETER ARTERIAL CHEMOEMBOLIZATION; MATERIAL-INDUCED NEPHROTOXICITY; IODINATED CONTRAST MATERIAL; RADIOFREQUENCY ABLATION; HEPATOCELLULAR-CARCINOMA; CT-COLONOGRAPHY; INDUCED NEPHROPATHY; SURGICAL RESECTION; MEDICAL LITERATURE; CRITICAL-APPRAISAL;

D O I：

10.3348/kjr.2015.16.2.286

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

The propensity score is defined as the probability of each individual study subject being assigned to a group of interest for comparison purposes. Propensity score adjustment is a method of ensuring an even distribution of confounders between groups, thereby increasing between group comparability. Propensity score analysis is therefore an increasingly applied statistical method in observational studies. The purpose of this article was to provide a step-by-step nonmathematical conceptual guide to propensity score analysis with particular emphasis on propensity score matching. A software program code used for propensity score matching was also presented.

引用

页码：286 / 296

页数：11

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