Re-expressing coefficients from regression models for inclusion in a meta-analysis

Table 2 Performance measures based on simulations with all possible values for each parameter for a total of 960 simulation scenarios with 2000 simulations per scenario (n = 1,919,110)^a

Estimator	Average absolute relative bias	IQR of absolute relative bias	Average coverage probability (%)^b
β_RB	0.362	0.120–0.499	36.5
β_Dz	0.430	0.112–0.597	39.4
β_Alt	0.389	0.090–0.558	45.5

^aA total of 890 of the possible 1,920,000 observations were not used in the calculations because β_estimand was < 0.0001 (essentially zero)
^bCalculated as the sum of the replicates where the re-expression method confidence interval included the observed β (β_estimand) divided by the total number of 1,919,110 replicates

ISSN: 1471-2288