Higgins Julian P T, Thompson Simon G, Deeks Jonathan J, Altman Douglas G
MRC Biostatistics Unit, Institute of Public Health, Cambridge CB2 2SR.
BMJ. 2003 Sep 6;327(7414):557-60. doi: 10.1136/bmj.327.7414.557.
Cochrane Reviews have recently started including the quantity to help readers assess the consistency of the results of studies in meta-analyses. What does this new quantity mean, and why is assessment of heterogeneity so important to clinical practice?
Cochrane系统评价最近开始纳入这一指标,以帮助读者评估Meta分析中各研究结果的一致性。这个新指标是什么意思,以及异质性评估为何对临床实践如此重要?