Table 1.
Clinicopathologic characteristics of LUAD patients
| Features | Training set | Test set | Entire set |
|---|---|---|---|
| Total | 252 (100%) | 252 (100%) | 504(100%) |
| Age | |||
| >65 | 136 (54.0%) | 120 (47.6%) | 256 (50.8%) |
| ≤65 | 116 (46.0%) | 132 (52.4%) | 248 (49.2%) |
| Gender | |||
| Male | 122 (48.4%) | 112 (44.4%) | 234 (46.4%) |
| Female | 130 (51.6%) | 140 (55.6%) | 270 (53.6%) |
| Stage | |||
| I–II | 204 (81.0%) | 191 (75.8%) | 395 (78.4%) |
| III–IV | 48 (19.0%) | 61 (24.2%) | 109 (21.6%) |
| T Stage | |||
| T1-T2 | 216 (85.7%) | 221 (87.7%) | 437 (86.7%) |
| T3-T4 | 35 (13.9%) | 29 (11.5%) | 64 (12.7%) |
| Unknown | 1 (0.4%) | 2 (0.8%) | 3 (0.6%) |
| N | |||
| N0 | 168 (66.7%) | 157 (62.3%) | 325 (64.5%) |
| N1-N3 | 78 (30.9%) | 90 (35.7%) | 168 (33.3%) |
| Unknown | 6 (2.4%) | 5 (2.0%) | 11 (2.2%) |
| M | |||
| M0 | 172 (68.2%) | 165 (65.5%) | 337 (66.9%) |
| M1 | 11 (4.4%) | 15 (5.9%) | 26 (5.1%) |
| Unknow | 69 (27.4%) | 72 (28.6%) | 141 (28.0%) |