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Table 1 Summary of results for example one: paracetamol for pain relief

From: Methods for calculating confidence and credible intervals for the residual between-study variance in random effects meta-regression models

Method Estimate Interval
REML 0.083 (0.011, 0.633)
Gen Q ( a i = σ i - 2 ) 0.115 (0.003, 0.691)
Gen Q ( a i = σ i - 1 ) 0.261 (0.000, 1.125)
Paule-Mandel/Q profile 0.219 (0.002, 1.487)
Bayesian 0.135 (0.011, 0.495)
  1. The REML confidence interval for τ 2 is approximate and the Bayesian estimate is the posterior mean.