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Table 9 Power (%) for the unequal sample size design of Table 8 for the ML-NP-EXACT and DerSimonian–Laird inverse-variance techniques heterogeneity τ2 = 0; event probability = .05; number of studies = 10; average sample size (across both study arms) = 200

From: Cannons and sparrows: an exact maximum likelihood non-parametric test for meta-analysis of k 2 × 2 tables

Technique Odds ratio
1.0 1.25 1.5 1.75 2.0
ML-NP-EXACT 6.2 12.1 24.0 35.5 47.0
DerSimonian–Laird inv. variance 9.5 13.9 23.2 35.1 44.4
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Emerging Themes in Epidemiology

ISSN: 1742-7622