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Table 5 Simulation results: variance of log(OR) by PSM-based approaches and data generation features

From: Evaluating the performance of propensity score matching based approaches in individual patient data meta-analysis

    Treatment Prevalence According to Study 50% Treatment Prevalence 30% Treatment Prevalence
OR SD c SD b Across Preferential Random Within Across Preferential Random Within Across Preferential Random Within
  (σ1j) (σ0j) Study Study Effect Study Study Study Effect Study Study Study Effect Study
3 0.04 0.7 0.04 0.09 0.12 0.10 0.02 0.03 0.02 0.02 0.03 0.03 0.03 0.03
   1.4 0.07 0.12 0.17 0.15 0.03 0.03 0.04 0.03 0.04 0.04 0.05 0.05
   2.1 0.14 0.16 0.33 0.25 0.05 0.05 0.05 0.05 0.07 0.08 0.07 0.09
  0.08 0.7 0.05 0.07 0.13 0.11 0.02 0.03 0.02 0.02 0.03 0.03 0.03 0.03
   1.4 0.07 0.12 0.18 0.14 0.04 0.03 0.04 0.03 0.05 0.04 0.05 0.05
   2.1 0.14 0.17 0.34 0.25 0.05 0.05 0.05 0.05 0.06 0.08 0.06 0.08
1.5 0.04 0.7 0.04 0.07 0.12 0.12 0.02 0.03 0.03 0.02 0.03 0.03 0.03 0.03
   1.4 0.07 0.12 0.17 0.16 0.04 0.06 0.05 0.06 0.04 0.05 0.04 0.06
   2.1 0.12 0.20 0.33 0.32 0.05 0.06 0.05 0.06 0.07 0.08 0.07 0.09
  0.08 0.7 0.05 0.08 0.12 0.12 0.02 0.03 0.03 0.02 0.02 0.03 0.03 0.03
   1.4 0.06 0.13 0.16 0.16 0.05 0.06 0.05 0.06 0.04 0.05 0.04 0.06
   2.1 0.13 0.19 0.32 0.32 0.06 0.06 0.05 0.06 0.06 0.08 0.07 0.09
  1. OR indicates pooled odds ratio used for simulation
  2. cSD is the standard deviation, σ1j of study specific random slope, u1j
  3. bSD is the standard deviation, σ0j, of study specific random intercept, u0j
  4. Across-study indicates consideration of Single-level logit model with across-study matching
  5. Prefer-study indicates consideration Single-level logit model with preferential-within study matching
  6. Random-effect indicates consideration of Random-effect logit model with across-study matching
  7. Within-study indicates consideration of Single-level logit model with within-study matching