Table 1.
Simulation results for group variables consisting of continuous variables.
| n | Weight | P(Δ1, Δ2) | dn | Method | GRC% | IDC% | GS | MS | MSER |
|---|---|---|---|---|---|---|---|---|---|
| 750 | Traditional case-cohort weight | (0.1,–) | 15 | AGB | 27.8 | 14.2 | 4.09 | 9.02 | 2.22 |
| GB | 33.2 | 5.2 | 3.96 | 9.53 | 2.02 | ||||
| SCAD | 8.8 | 8.2 | 4.27 | 8.67 | 2.43 | ||||
| (0.2,–) | 17 | AGB | 73.4 | 59.6 | 3.32 | 6.73 | 1.46 | ||
| GB | 73.2 | 21.8 | 3.32 | 7.61 | 1.72 | ||||
| SCAD | 38.8 | 38.2 | 3.68 | 7.05 | 1.69 | ||||
| Efficient case-cohort weight | (0.1,0.2) | 15 | AGB | 54.2 | 32.8 | 3.58 | 7.48 | 1.64 | |
| GB | 52.8 | 12.2 | 3.56 | 8.36 | 1.70 | ||||
| SCAD | 17.6 | 16.6 | 4.06 | 8.01 | 2.07 | ||||
| (0.2,0.4) | 17 | AGB | 83.0 | 71.2 | 3.20 | 6.48 | 1.36 | ||
| GB | 79.4 | 23.4 | 3.23 | 7.35 | 1.72 | ||||
| SCAD | 47.4 | 46.4 | 3.56 | 6.79 | 1.50 | ||||
| 1500 | Traditional case-cohort weight | (0.1,–) | 17 | AGB | 34.4 | 20.0 | 4.12 | 8.68 | 2.02 |
| GB | 31.2 | 4.4 | 4.18 | 9.85 | 2.00 | ||||
| SCAD | 12.0 | 11.8 | 4.37 | 8.74 | 2.18 | ||||
| (0.2,–) | 19 | AGB | 83.8 | 76.0 | 3.22 | 6.45 | 1.30 | ||
| GB | 73.0 | 18.8 | 3.33 | 7.56 | 1.70 | ||||
| SCAD | 66.0 | 65.6 | 3.39 | 6.57 | 1.39 | ||||
| Efficient case-cohort weight | (0.1,0.2) | 17 | AGB | 56.6 | 41.2 | 3.69 | 7.67 | 1.75 | |
| GB | 51.4 | 10.8 | 3.69 | 8.54 | 1.84 | ||||
| SCAD | 34.8 | 33.8 | 3.89 | 7.63 | 1.82 | ||||
| (0.2,0.4) | 19 | AGB | 92.8 | 85.2 | 3.10 | 6.22 | 1.24 | ||
| GB | 82.8 | 23.4 | 3.19 | 7.28 | 1.74 | ||||
| SCAD | 75.4 | 74.8 | 3.26 | 6.34 | 1.23 | ||||
GRC: group correction; IDC: individual correction; GS: group size; MS: model size; MSER: mean square error ratio; AGB: adaptive group bridge; GB: group bridge; SCAD: smoothly clipped absolute deviation.