Table 3. Data of multiple staging systems.
| Staging systems | n (%) | ||
| Training group (N=1,074) | Internal validation group (N=640) | External validation group (N=427) | |
| CPS+EG score | |||
| 0 | 82 (7.6) | 72 (11.3) | 45 (10.5) |
| 1 | 268 (25.0) | 156 (24.4) | 104 (24.4) |
| 2 | 311 (29.0) | 175 (27.3) | 141 (33.0) |
| 3 | 248 (23.1) | 137 (21.4) | 87 (20.4) |
| 4 | 117 (10.9) | 64 (10.0) | 38 (8.9) |
| 5 | 37 (3.4) | 30 (4.7) | 10 (2.3) |
| 6 | 11 (1.0) | 6 (0.9) | 2 (0.5) |
| CPS+EGHlow score | |||
| 0 | 39 (3.6) | 27 (4.2) | 16 (3.7) |
| 1 | 135 (12.6) | 101 (15.8) | 64 (15.0) |
| 2 | 204 (19.0) | 132 (20.6) | 100 (23.4) |
| 3 | 286 (26.6) | 142 (22.2) | 100 (23.4) |
| 4 | 227 (21.1) | 140 (21.9) | 83 (19.4) |
| 5 | 126 (11.7) | 60 (9.4) | 46 (10.8) |
| 6 | 44 (4.1) | 26 (4.1) | 14 (3.3) |
| 7 | 10 (0.9) | 12 (1.9) | 3 (0.7) |
| 8 | 3 (0.3) | 0 (0) | 1 (0.2) |
| Neo-Bioscore | |||
| 0 | 40 (3.7) | 28 (4.4) | 16 (3.7) |
| 1 | 148 (13.8) | 110 (17.2) | 67 (15.7) |
| 2 | 248 (23.1) | 142 (22.2) | 113 (26.5) |
| 3 | 294 (27.4) | 166 (25.9) | 116 (27.2) |
| 4 | 216 (20.1) | 118 (18.4) | 75 (17.6) |
| 5 | 91 (8.5) | 49 (7.7) | 29 (6.8) |
| 6 | 32 (3.0) | 23 (3.6) | 9 (2.1) |
| 7 | 5 (0.5) | 4 (0.6) | 2 (0.5) |