Department of Clinical Research, Basel Institute for Clinical Epidemiology and Biostatistics, University Hospital Basel and University of Basel, Basel, Switzerland.
Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Canada.
JAMA Netw Open. 2021 Oct 1;4(10):e2131503. doi: 10.1001/jamanetworkopen.2021.31503.
This cross-sectional study compares randomized clinical trial protocols to assess the prevalence and reporting quality of planned subgroup analyses over time.
本横断面研究比较了随机临床试验方案,以评估随时间变化的计划亚组分析的流行程度和报告质量。