Table 1 Baseline characteristics of the patients in training and validation cohorts
Characteristic | Training cohort (n = 456) | Validation cohort (n = 232) | P value |
|---|---|---|---|
Gender (male/female) | 327/129 | 179/53 | 0.126 |
Age (≤ 55/ > 55,years) | 352/104 | 188/44 | 0.246 |
Smoke (no/yes) | 278/178 | 130/102 | 0.213 |
Drink (no/yes) | 415/41 | 202/30 | 0.108 |
WHO pathological type (I/II/III) | 0/32/424 | 3/14/215 | 0.061 |
T stage (T1-T2/T3-T4) | 179/277 | 104/128 | 0.160 |
N stage (N0-N1/N2-N3) | 202/254 | 105/127 | 0.811 |
TNM stage (I-II/III-IVa) | 95/361 | 52/180 | 0.633 |