pi1 = 0.5, ρ = 0.3 | |||||
---|---|---|---|---|---|
Log-odds (% bias) | Power (%)c | Coverage (%)c | Model SEc | Empirical SEc | |
Complete | |||||
χ2 a | 0.396 (0) | 78.1 | 93.6 | 0.145 | 0.144 |
GLMMb | 0.507 (0) | 75.6 | 97.5 | 0.199 | 0.171 |
MCAR | |||||
Equal drop out (30% drop out in each arm) | |||||
χ2 | 0.392 (−1.0) | 61.6 | 95.0 | 0.174 | 0.175 |
GLMM | 0.508 (0.3) | 61.7 | 97.3 | 0.223 | 0.198 |
Unequal dropouts 1 (20% drop out in control, 40% drop out in treatment) | |||||
χ2 | 0.404 (2.0) | 61.5 | 95.3 | 0.176 | 0.176 |
GLMM | 0.516 (1.8) | 63.9 | 97.1 | 0.224 | 0.197 |
Unequal dropouts 2 (40% drop out in control, 20% drop out in treatment) | |||||
χ2 | 0.394 (−0.3) | 63.0 | 96.3 | 0.175 | 0.170 |
GLMM | 0.510 (0.6) | 65.4 | 98.0 | 0.224 | 0.193 |
MAR1 (observations more likely to be deleted if prior observation was positive) | |||||
Equal drop out (30% drop out in each arm) | |||||
χ2 | 0.405 (2.3) | 63.6 | 95.9 | 0.173 | 0.172 |
GLMM | 0.510 (0.7) | 64.7 | 97.7 | 0.223 | 0.193 |
Unequal dropouts 1 (20% drop out in control, 40% drop out in treatment) | |||||
χ2 | 0.314 (−20.6) | 43.9 | 93.2 | 0.145 | 0.174 |
GLMM | 0.529 (4.3) | 66.6 | 97.8 | 0.223 | 0.194 |
Unequal dropouts 2 (40% drop out in control, 20% drop out in treatment) | |||||
χ2 | 0.495 (25.2) | 80.2 | 91.0 | 0.175 | 0.174 |
GLMM | 0.495 (−2.4) | 60.6 | 97.4 | 0.224 | 0.194 |
MAR2 (observations less likely to be deleted if prior observation was positive) | |||||
Equal drop out (30% drop out in each arm) | |||||
χ2 | 0.406 (2.7) | 63.9 | 94.5 | 0.176 | 0.177 |
GLMM | 0.514 (1.4) | 65.8 | 97.8 | 0.224 | 0.198 |
Unequal dropouts 1 (20% drop out in control, 40% drop out in treatment) | |||||
χ2 | 0.496 (25.4) | 79.7 | 91.4 | 0.179 | 0.176 |
GLMM | 0.494 (−2.6) | 60.0 | 97.7 | 0.225 | 0.197 |
Unequal dropouts 2 (40% drop out in control, 20% drop out in treatment) | |||||
χ2 | 0.311 (−21.3) | 41.4 | 93.2 | 0.177 | 0.177 |
GLMM | 0.530 (4.5) | 66.9 | 97.6 | 0.224 | 0.196 |