Variable | Before PSM | After PSM | ||||
---|---|---|---|---|---|---|
SKN2 | Non-SKN2 | p | SKN2 | Non-SKN2 | p | |
Age | 0.358 | 0.073 | ||||
< 65 y | 76(67.9%) | 249(72.4%) | 76(67.9%) | 72(64.3%) | ||
≥ 65 y | 36(32.1%) | 95(27.6%) | 36(32.1%) | 40(35.7%) | ||
Sex | 0.002 | 0.681 | ||||
Male | 67(59.8%) | 148(43.0%) | 67(59.8%) | 62(55.4%) | ||
Female | 45(40.2%) | 196(57.0%) | 45(40.2%) | 50(44.6%) | ||
Smoking history | 0.894 | 0.383 | ||||
Smoking | 31(27.7%) | 93(27.0%) | 31(27.7%) | 43(38.4%) | ||
No smoking | 81(72.3%) | 251(72.0%) | 81(72.3%) | 69(61.6%) | ||
Visceral pleura invasion | 0.106 | 1.000 | ||||
Invaded | 36(32.1%) | 140(40.7%) | 36(32.1%) | 39(34.8%) | ||
Not invaded | 76(67.9%) | 204(59.3%) | 76(67.9%) | 73(65.2%) | ||
Vascular tumour thrombus | 0.280 | 0.067 | ||||
Yes | 21(18.8%) | 88(25.6%) | 21(18.8%) | 29(25.9%) | ||
No | 91(81.2%) | 256(74.4%) | 91(81.2%) | 83(74.1%) | ||
Nerve invasion | 0.065 | 0.811 | ||||
Yes | 9(8.0%) | 51(14.8%) | 9(8.0%) | 13(11.6%) | ||
No | 103(92.0%) | 293(85.2%) | 103(92.0%) | 99(88.4%) | ||
EGFR mutation | < 0.001 | 0.811 | ||||
Mutation | 46(41.1%) | 80(23.3%) | 46(41.1%) | 31(27.7%) | ||
No mutation | 28(25.0%) | 152(44.2%) | 28(25.0%) | 27(24.1%) | ||
No detection | 38(33.9%) | 112(32.6%) | 38(33.9%) | 54(48.2%) | ||
Size | < 0.001 | 0.410 | ||||
≤ 3 cm | 72(64.3%) | 154(44.8%) | 72(64.3%) | 59(52.7%) | ||
> 3 cm | 40(35.7%) | 190(55.2%) | 40(35.7%) | 53(47.3%) | ||
Grade | 0.071 | 0.221 | ||||
Well differentiated* | 71(63.4%) | 249(72.4%) | 71(63.4%) | 62(55.4%) | ||
Poorly | 41(36.6%) | 95(27.6%) | 41(36.6%) | 50(44.6%) | ||
Metastasis stations | 0.878 | 0.567 | ||||
1 station | 38(33.9%) | 114(33.1%) | 38(33.9%) | 34(30.4%) | ||
> 1 station | 74(66.1%) | 230(66.9%) | 74(66.1%) | 78(69.6%) |