Stepped wedgeA stepped wedge trial evaluates an intervention that is implemented over a number of time periods according to a staggered timetable. Stepped wedge trials are usually cluster randomised, the intervention being delivered at some geographical, service or other cluster level. There is ...
答案是:阶梯设计(the stepped-wedge design) 阶梯设计多用于整群随机试验,评价“利大于弊”的干预措施,尤其在健康教育、免疫接种、筛检、医护人员培训等领域使用较多。这种设计通常不设置专门的对照组,随着试验的进行,各个组都会按照随机结果先后接受这种干预措施。这样就...
The stepped wedge trial design: a systematic review[J]. BMC Medical Research Methodology, 2006, 6: 54. DOI: 10.1186/1471-2288-6-54 [7] Hemming K, Taljaard M. Reflection on modern methods: when is a stepped-wedge cluster randomized trial a good study design choice?[J]. International ...
Fig. 1 illustrates the differences between the parallel, traditional crossover and stepped wedge designs. Although the stepped wedge design extends the length of a randomized trial due to the presence of multiple time intervals, the nature of the design may be beneficial in certain settings. In ...
Unequal cluster sizes in stepped-wedge cluster randomised trials: a systematic reviewUnequal cluster sizes in stepped-wedge cluster randomised trials: a systematic reviewstepped-wedge trialsystematic reviewcluster randomised trialTo investigate the extent to which cluster sizes vary in stepped-wedge cluster...
Carry-over effects can arise in stepped wedge trials with closed and open cohorts. Stepped wedge trial designs should be reported more clearly. Researchers should consider the use of stratified and/or restricted randomisation. Trials should generally not commit resources to collect outcome data from ...
et al. The impact of the Dementia Care in Hospitals Program on hospital acquired complications – a non-randomised stepped wedge hybrid effectiveness-implementation study. BMC Geriatr 24, 986 (2024). https://doi.org/10.1186/s12877-024-05548-3 Download citation Received13 July 2023 Accepted07 ...
A pragmatic, stepped wedge trial design can be an appealing design to evaluate complex interventions in real-life settings. However, there are certain pitf... N Heim,HFV Stel,Roelof G.A. Ettema,... - 《Trials》 被引量: 9发表: 2017年 Can promoting awareness of fetal movements and focusing...
A stepped wedge trial based on randomising the time at which individuals, rather than clusters, receive the intervention is possible, but uncommon in the literature [3]. Two systematic reviews have been published on stepped wedge randomised controlled trials (SWTs). The first was conducted by ...
Stepped Wedge Design Design of Experiments> What is a Stepped Wedge Design? Thestepped wedge designis a sub-type of arandomized controlled trial, where individuals or groups are studied at different times. At the end of the trial, all participants will have received the intervention being ...