Letter

Surveying the literature from animal experiments: Avoidance of bias is objective of systematic reviews, not meta-analysis

BMJ 2005; 331 doi: 10.1136/bmj.331.7508.110-c (Published 7 July 2005)
Cite this as: BMJ 2005;331:110.4

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  1. Khalid S Khan, professor of obstetrics-gynaecology and clinical epidemiology (k.s.khan@bham.ac.uk),
  2. Luciano Mignini, research fellow
  1. University of Birmingham, Birmingham
  2. Centro Rosarino de Estudios Perinatales, Rosario, Argentina

    EDITOR—We assessed the methodological quality of reviews of animal studies identified using a carefully designed search term combination in Medline and Embase (1996-2004). We also examined bibliographies of known reviews and contacted experts. In total, 30 reviews summarised studies in live animals, which measured laboratory variables or examined treatment effects, identified from search of a publicly available …

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