Q 1. Which model should be preferred (FE/RE) when conducting a meta-analysis for pooling prevalence?
Q2. In the RE model, why do all studies receive equal weight irrespective of sample size or confidence intervals?
Q3. When we use the FE model, all the studies receive weight according to their sample size or CI. But my question is, is it correct to use the Fixed Effect Model?
Pradeep Paul George
- RE model is generally preferred over FE model for pooling prevalence in meta-analysis.
- In RE model, studies with lower variance are given greater weight.
- FE model should not be used unless you are confident that the true prevalence of the outcome is the same in all studies.
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