Meta-analysis and quality of evidence in the economic evaluation of drug trials.
Simes R J, Glasziou P P·PharmacoEconomics
Meta-analysis is an important part of assessing cost-effectiveness in that it may help determine which treatments are indeed effective and estimate the level of effectiveness of each. Meta-analysis uses the data from all the relevant trials and is a powerful tool for detecting effects too small to be picked up by indiv…