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Federal
Pooling, meta-analysis, and the evaluation of drug safety
U.S. Department of Health & Human Services —
Background The "integrated safety report" of the drug registration files submitted to health authorities usually summarizes the rates of adverse events observed for a... -
Federal
Simpson's paradox and calculation of number needed to treat from meta-analysis
U.S. Department of Health & Human Services —
Background Calculation of numbers needed to treat (NNT) is more complex from meta-analysis than from single trials. Treating the data as if it all came from one trial... -
Federal
Meta-analysis, Simpson's paradox, and the number needed to treat
U.S. Department of Health & Human Services —
Background There is debate concerning methods for calculating numbers needed to treat (NNT) from results of systematic reviews. Methods We investigate the...