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
2007/2/15
期刊
BMC medical research methodology
卷号
7
期号
1
页码范围
10
出版商
BioMed Central Ltd
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 …
引用总数
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