Table 1.
Clinical information of patients in training and testing dataset and chi-square test between two groups.
| Covariates | Total | Training dataset | Testing dataset | p-value | |
|---|---|---|---|---|---|
| Survival status, no (%) | Alive | 340(69.25) | 258(68.44) | 82(71.93) | 0.55 |
| Dead | 151(30.75) | 119(31.56) | 32(28.07) | ||
| Age, no (%) | <=65 | 328(66.8) | 251(66.58) | 77(67.54) | 0.94 |
| >65 | 163(33.2) | 126(33.42) | 37(32.46) | ||
| Gender, no(%) | Female | 168(34.22) | 133(35.28) | 35(30.7) | 0.43 |
| Male | 323(65.78) | 244(64.72) | 79(69.3) | ||
| Grade, no(%) | G1 | 10(2.04) | 9(2.39) | 1(0.88) | 0.73 |
| G2 | 212(43.18) | 159(42.18) | 53(46.49) | ||
| G3 | 196(39.92) | 150(39.79) | 46(40.35) | ||
| G4 | 67(13.65) | 54(14.32) | 13(11.4) | ||
| Gx | 6(1.22) | 5(1.33) | 1(0.88) | ||
| Stage, no(%) | Stage I | 246(50.1) | 188(49.87) | 58(50.88) | 0.45 |
| Stage II | 53(10.79) | 39(10.34) | 14(12.28) | ||
| Stage III | 111(22.61) | 82(21.75) | 29(25.44) | ||
| Stage IV | 78(15.89) | 66(17.51) | 12(10.53) | ||
| Stage x | 3(0.61) | 2(0.53) | 1(0.88) | ||
| T group, no(%) | T1 | 252(51.32) | 193(51.19) | 59(51.75) | 0.65 |
| T2 | 65(13.24) | 47(12.47) | 18(15.79) | ||
| T3 | 165(33.6) | 129(34.22) | 36(31.58) | ||
| T4 | 9(1.83) | 8(2.12) | 1(0.88) | ||
| Metastasis, no(%) | M0 | 390(79.43) | 296(78.51) | 94(82.46) | 0.08 |
| M1 | 75(15.27) | 64(16.98) | 11(9.65) | ||
| Mx | 26(5.3) | 17(4.51) | 9(7.89) |