作者
Beverley J Shea, Jeremy M Grimshaw, George A Wells, Maarten Boers, Neil Andersson, Candyce Hamel, Ashley C Porter, Peter Tugwell, David Moher, Lex M Bouter
发表日期
2007/12
来源
BMC medical research methodology
卷号
7
页码范围
1-7
出版商
BioMed Central
简介
Background
Our objective was to develop an instrument to assess the methodological quality of systematic reviews, building upon previous tools, empirical evidence and expert consensus.
Methods
A 37-item assessment tool was formed by combining 1) the enhanced Overview Quality Assessment Questionnaire (OQAQ), 2) a checklist created by Sacks, and 3) three additional items recently judged to be of methodological importance. This tool was applied to 99 paper-based and 52 electronic systematic reviews. Exploratory factor analysis was used to identify underlying components. The results were considered by methodological experts using a nominal group technique aimed at item reduction and design of an assessment tool with face and content validity.
Results
The factor analysis identified 11 components. From …
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BJ Shea, JM Grimshaw, GA Wells, M Boers… - BMC medical research methodology, 2007