Table 3.
Imputed FI statistics — cellwise simulated missingness
| Imputation | Type | Mean1 | Bias rate2,3 | SD1 | SD bias rate2,3 | HR1 | AUC1,4 |
|---|---|---|---|---|---|---|---|
| GT | – | 0.176 | 0.000(0) | 0.073 | 0.000(0) | 1.075(7) | 0.733(36) |
| Ignore | cMCAR | 0.176 | 0.000(1) | 0.076 | 0.014(1)∗∗∗ | 1.070(7) | 0.728(37) |
| Ignore20 | cMCAR | 0.176 | 0.000(1) | 0.075 | 0.013(1)∗∗∗ | 1.071(9) | 0.729(41) |
| Default (m = 5) | cMCAR | 0.193 | 0.109(1)∗∗∗ | 0.078 | 0.030(1)∗∗∗ | 1.071(7) | 0.734(37) |
| MICE RF (m = 5) | cMCAR | 0.188 | 0.073(1)∗∗∗ | 0.076 | 0.017(2)∗∗∗ | 1.073(7) | 0.734(37) |
| RF | cMCAR | 0.177 | 0.004(0)∗∗∗ | 0.074 | 0.006(0)∗∗∗ | 1.074(7) | 0.732(37) |
| kNN | cMCAR | 0.179 | 0.012(1)∗∗∗ | 0.072 | − 0.009(0)∗∗∗ | 1.076(7) | 0.730(37) |
| CART (m = 5) | cMCAR | 0.177 | 0.002(1)∗∗ | 0.073 | 0.002(1) | 1.075(8) | 0.732(37) |
| CART (m = 15) | cMCAR | 0.177 | 0.002(0)∗∗∗ | 0.074 | 0.004(1)∗∗∗ | 1.077(7) | 0.733(37) |
| CART+Aux (m = 5) | cMCAR | 0.177 | 0.000(1) | 0.074 | 0.004(1)∗ | 1.076(8) | 0.735(37) |
| Ignore | cMNAR | 0.198 | 0.142(1)∗∗∗ | 0.080 | 0.046(0)∗∗∗ | 1.069(7) | 0.732(37) |
| Ignore20 | cMNAR | 0.202 | 0.137(0)∗∗∗ | 0.081 | 0.050(1)∗∗∗ | 1.069(7) | 0.735(39) |
| Default (m = 5) | cMNAR | 0.193 | 0.109(1)∗∗∗ | 0.078 | 0.029(1)∗∗∗ | 1.071(7) | 0.733(37) |
| MICE RF (m = 5) | cMNAR | 0.188 | 0.074(1)∗∗∗ | 0.076 | 0.017(1)∗∗∗ | 1.073(7) | 0.734(37) |
| RF | cMNAR | 0.177 | 0.004(0)∗∗∗ | 0.074 | 0.006(0)∗∗∗ | 1.073(7) | 0.733(37) |
| kNN | cMNAR | 0.179 | 0.012(1)∗∗∗ | 0.072 | − 0.009(0)∗∗∗ | 1.076(7) | 0.730(37) |
| CART (m = 5) | cMNAR | 0.190 | 0.092(1)∗∗∗ | 0.077 | 0.025(1)∗∗∗ | 1.072(7) | 0.735(37) |
| CART (m = 15) | cMNAR | 0.190 | 0.092(1)∗∗∗ | 0.077 | 0.023(1)∗∗∗ | 1.074(7) | 0.735(37) |
| CART+Aux (m = 5) | cMNAR | 0.176 | 0.000(1) | 0.074 | 0.002(1) | 1.075(7) | 0.731(37) |
5,6
1 At 15% missingness
2 The bias rate is the theoretical bias at 100% missingness
3 p-value for t-test vs 0
4 p-value for vs Ignore; Ignore vs GT
5 See Supplemental Table SIII for additional results. See Supplemental Figure S8 for forest plot of HRs
6 Bold: noteworthy result
Statistical significance is indicated with * p < 0.05, ** p < 0.01, or *** p < 0.001.