Fig. 3From: Hartung-Knapp-Sidik-Jonkman approach and its modification for random-effects meta-analysis with few studiesHinks et al. (2010) example data. A forest plot illustrating the three estimated log odds ratios and 95 % confidence intervals for the example data due to Hinks et al. [23]. The estimated amount of heterogeneity variance (according to DL, REML and PM estimators) is zero here. At the bottom the three alternative combined estimates based on normal approximation, HKSJ and mKH approach are shownBack to article page