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Table 7 Simulation results: Statistical Power and type I error 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 0.7 100 95 83 90 100 100 100 100 100 100 100 100
   1.4 100 89 79 84 100 99 100 99 100 99 99 99
   2.1 99 83 72 73 100 97 98 95 100 92 94 91
  0.08 0.7 100 95 83 90 100 100 100 100 100 100 100 100
   1.4 100 88 79 84 100 99 100 99 100 100 99 99
   2.1 98 83 72 72 100 96 98 94 100 91 94 90
1.5 0.04 0.7 64 50 22 47 92 80 69 80 90 77 72 76
   1.4 60 38 29 37 87 60 49 56 90 49 48 57
   2.1 53 27 22 25 88 32 29 24 91 30 28 25
  0.08 0.7 63 49 21 46 92 79 68 77 89 77 70 75
   1.4 59 36 27 36 86 58 47 53 89 60 46 55
   2.1 52 27 21 24 87 29 26 22 90 28 26 23
  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
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BMC Medical Research Methodology

ISSN: 1471-2288

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