Covariates | Total | Train | Test | chi | P |
---|---|---|---|---|---|
Age | |||||
 <=65 | 160(39.41%) | 83(40.69%) | 77(38.12%) | 0.280 | 0.597 |
 >65 | 246(60.59%) | 121(59.31%) | 125(61.88%) |  |  |
Gender | |||||
 Female | 107(26.35%) | 62(30.39%) | 45(22.28%) | 3.444 | 0.063 |
 Male | 299(73.65%) | 142(69.61%) | 157(77.72%) |  |  |
Grade | |||||
 High | 383(94.33%) | 191(93.63%) | 192(95.05%) | 0.780 | 0.377 |
 Low | 20(4.93%) | 12(5.88%) | 8(3.96%) |  |  |
 unknow | 3(0.74%) | 1(0.49%) | 2(0.99%) |  |  |
Smoked | |||||
 NO | 109(26.85%) | 63(30.88%) | 46(22.77%) | 3.790 | 0.052 |
 YES | 284(69.95%) | 133(65.2%) | 151(74.75%) |  |  |
 unknow | 13(3.2%) | 8(3.92%) | 5(2.48%) |  |  |
Stage | |||||
 I-II | 131(32.27%) | 68(33.33%) | 63(31.19%) | 0.214 | 0.644 |
 III-IV | 273(67.24%) | 135(66.18%) | 138(68.32%) |  |  |
 unknow | 2(0.49%) | 1(0.49%) | 1(0.5%) |  |  |
T | |||||
 T0/X | 2(0.49%) | 0(0%) | 2(0.99%) | 2.683 | 0.221 |
 T1-2 | 121(29.8%) | 66(32.35%) | 55(27.23%) |  |  |
 T3-4 | 251(61.82%) | 123(60.29%) | 128(63.37%) |  |  |
 unknow | 32(7.88%) | 15(7.35%) | 17(8.42%) |  |  |
M | |||||
 M0/X | 392(96.55%) | 196(96.08%) | 196(97.03%) | 0.088 | 0.766 |
 M1 | 11(2.71%) | 6(2.94%) | 5(2.48%) |  |  |
 unknow | 3(0.74%) | 2(0.98%) | 1(0.5%) |  |  |
N | |||||
 N0/X | 272(67%) | 140(68.63%) | 132(65.35%) | 0.507 | 0.477 |
 N1-3 | 128(31.53%) | 61(29.9%) | 67(33.17%) |  |  |
 unknow | 6(1.48%) | 3(1.47%) | 3(1.49%) |  |  |