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. Author manuscript; available in PMC: 2016 Apr 27.
Published in final edited form as: Biometrics. 2015 Aug 3;71(4):1150–1159. doi: 10.1111/biom.12358

Table 2.

Results from 1000 simulated datasets of N = 500 cases and M = 4 controls per case with MCAR missingness mechanism. “LOR” is mean estimated log odds ratio, “SE” is empirical standard error, “estSE” is mean estimated standard error, “MSE” is mean-squared error ×1000, and “cv” is coverage of 95% confidence interval. True log odds ratios are 0.417, 0.333, and 0.333 for Xcat, XconA, and XconB, respectively.

Xcat
XconA
XconB
LOR SE estSE MSE cv LOR SE estSE MSE cv LOR SE estSE MSE cv
Complete data 0.418 0.150 0.144 22.4 94 0.334 0.058 0.061 3.37 97 0.337 0.062 0.061 3.89 94
10% missing
Complete cases 0.419 0.179 0.169 32.1 94 0.333 0.069 0.071 4.72 96 0.338 0.073 0.071 5.38 94
Match var: FCS 0.418 0.158 0.153 25.1 95 0.333 0.062 0.065 3.82 97 0.337 0.064 0.062 4.07 94
    Normal 0.407 0.154 0.152 23.8 96 0.335 0.062 0.064 3.82 96 0.339 0.064 0.062 4.06 94
    Latent norm 0.424 0.158 0.153 25.1 94 0.329 0.061 0.065 3.69 97 0.339 0.063 0.062 4.05 94
Match set: FCS 0.415 0.159 0.153 25.4 94 0.332 0.062 0.065 3.80 96 0.338 0.064 0.062 4.08 94
    Normal 0.411 0.157 0.154 24.7 95 0.336 0.062 0.065 3.89 97 0.337 0.064 0.062 4.08 94
    Latent norm 0.424 0.159 0.153 25.2 95 0.320 0.060 0.065 3.83 97 0.340 0.064 0.062 4.15 94
25% missing
Complete cases 0.411 0.242 0.225 58.5 93 0.337 0.089 0.093 7.90 97 0.338 0.095 0.093 8.99 95
Match var: FCS 0.417 0.176 0.168 30.8 94 0.335 0.069 0.071 4.75 97 0.337 0.066 0.064 4.36 94
    Normal 0.389 0.164 0.165 27.7 95 0.338 0.069 0.071 4.73 96 0.340 0.066 0.064 4.37 94
    Latent norm 0.432 0.174 0.168 30.4 94 0.323 0.066 0.070 4.42 97 0.343 0.065 0.064 4.37 94
Match set: FCS 0.409 0.176 0.168 31.0 94 0.333 0.068 0.071 4.68 96 0.338 0.066 0.064 4.41 94
    Normal 0.398 0.170 0.170 29.3 95 0.343 0.070 0.072 5.04 95 0.335 0.067 0.064 4.47 94
    Latent norm 0.431 0.177 0.170 31.4 94 0.302 0.065 0.070 5.23 95 0.344 0.067 0.065 4.59 94