MRC Biostatistics Unit, Institute of Public Health, Cambridge CB2 0SR, UK.
BMJ. 2011 Oct 18;343:d5928. doi: 10.1136/bmj.d5928.
Flaws in the design, conduct, analysis, and reporting of randomised trials can cause the effect of an intervention to be underestimated or overestimated. The Cochrane Collaboration’s tool for assessing risk of bias aims to make the process clearer and more accurate
随机试验在设计、实施、分析和报告方面的缺陷可能导致干预效果被低估或高估。 Cochrane 协作组用于评估偏倚风险的工具旨在使这一过程更加清晰和准确。
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