中国卒中杂志 ›› 2023, Vol. 18 ›› Issue (01): 114-122.DOI: 10.3969/j.issn.1673-5765.2023.01.013

• 新型临床试验设计与解读 • 上一篇    下一篇

阶梯整群随机试验

王孟, 王春娟, 李子孝, 谷鸿秋   

  1. 1 北京 100070 首都医科大学附属北京天坛医院,国家神经系统疾病临床医学研究中心  
    2 首都医科大学附属北京天坛医院,国家神经系统疾病医疗质量控制中心  
    3 首都医科大学附属北京天坛医院神经病学中心
  • 收稿日期:2022-12-05 出版日期:2023-01-20 发布日期:2023-01-20
  • 通讯作者: 谷鸿秋 guhongqiu@yeah.net

Stepped Wedge Cluster Randomized Trials

  • Received:2022-12-05 Online:2023-01-20 Published:2023-01-20

摘要: 阶梯整群随机试验(stepped wedge cluster randomized trial,SW-CRT)是一种新型的研究设计,通常用于评价整群的服务或政策干预效果。该设计不需要单独设立对照,在设计初始阶段,所有整群均不暴露于干预,随后每一个观察期随机一组整群接受干预,进入干预组,直到所有整群均接受干预。本文从SW-CRT的基本原理、类别、研究设计、样本量计算、统计学方法和报告规范等方面进行介绍,为开展SW-CRT研究提供参考。

关键词:   阶梯设计;整群随机试验;基本原理;研究设计

Abstract: The stepped wedge cluster randomized trial (SW-CRT) is a kind of new cluster randomized controlled trial design, mostly applied in the field of service delivery and policy evaluation. No control groups are specifically established in SW-CRTs. At the initial time of SW-CRT, no cluster is exposed to the intervention; whereafter, one random cluster will receive the intervention at regular observation intervals until all the clusters cross to the intervention groups. In this review, we summarized the rationale, types, study design, sample size calculation, statistical methods and the reporting standards of the SW-CRT, to provide reference for carrying out SW-CRTs in the future. 

Key words:  Stepped wedge; Cluster randomized trial; Rationale; Study design