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. Author manuscript; available in PMC: 2017 Jul 30.
Published in final edited form as: Stat Med. 2016 Feb 16;35(17):3021–3032. doi: 10.1002/sim.6908

Table 1.

Confidence interval width, coverage probability, estimated standard error (SE), and empirical SE for fixed effects analysis, with 40% missingness in sample variances and β1 = 1.5. NM is no missingness, MI is multiple imputation using gamma meta-regression, ME is mean imputation, SGR is single imputation using gamma meta-regression, SLM is single imputation using linear regression based on the log-variance, and CC is complete case analysis.

β1 = 1.5 Width Coverage Estimated SE Empirical SE
NM 0.303 0.944 0.077 0.079
MI 0.304 0.947 0.078 0.079
ME 0.309 0.899 0.079 0.094
SGR 0.304 0.946 0.078 0.079
SLM 0.304 0.947 0.078 0.079
CC 0.335 0.946 0.086 0.087