Meta-analyses frequently pooled different study types together: a meta-epidemiological study
نویسندگان
چکیده
منابع مشابه
Small-study effects and time trends in diagnostic test accuracy meta-analyses: a meta-epidemiological study
BACKGROUND Small-study effects and time trends have been identified in meta-analyses of randomized trials. We evaluated whether these effects are also present in meta-analyses of diagnostic test accuracy studies. METHODS A systematic search identified test accuracy meta-analyses published between May and September 2012. In each meta-analysis, the strength of the associations between estimated...
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BACKGROUND The validity of a meta-analysis can be understood better in light of the possible impact of publication bias. The majority of the methods to investigate publication bias in terms of small study-effects are developed for meta-analyses of intervention studies, leaving authors of diagnostic test accuracy (DTA) systematic reviews with limited guidance. The aim of this study was to evalua...
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In the first decade of the evidence-based era, which began in the mid-1990s, meta-analyses were used to scrutinize homeopathy for evidence of beneficial effects in medical conditions. In this review, meta-analyses including pooled data from placebo-controlled clinical trials of homeopathy and the aftermath in the form of debate articles were analyzed. In 1997 Klaus Linde and co-workers identifi...
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ژورنال
عنوان ژورنال: Journal of Clinical Epidemiology
سال: 2020
ISSN: 0895-4356
DOI: 10.1016/j.jclinepi.2019.10.013