What it means
Pooling gives more statistical power than any single trial, but it cannot correct bias in the studies it includes. A meta-analysis of small, inconsistent trials can produce a precise-looking number that means little.
Check how much the studies disagree (heterogeneity) and whether publication bias was tested.
Also known as
- meta analysis
- pooled analysis
- pooled estimate
Sources
General information, not medical advice. Talk to a clinician about any decision about your health.