Table 1 Patient characteristics
Characteristic | Level | Cohort 1 | Cohort 2 | Cohort 3 | p |
|---|---|---|---|---|---|
n | Â | 228 | 1003 | 144 | Â |
Sex (%) | Male | 122 (53.51) | 566 (56.43) | 108 (75.00) | < 0.01 |
| Â | Female | 106 (46.49) | 437 (43.57) | 36 (25.00) | Â |
Age (median [IQR]) |  | 55.00 [49.00, 60.00] | 59.00 [52.00, 65.00] | 69.00 [64.00, 76.00] | < 0.01 |
KPS (median [IQR]) |  | 90.00 [80.00, 90.00] | 90.00 [90.00, 90.00] | Not available | < 0.01 |
Smoking history | Absence | 129 (56.58) | 530 (52.84) | 22 (15.28) | < 0.01 |
| Â | Presence | 99 (43.42) | 473 (47.16) | 122 (84.72) | Â |
Tumor location | Left lung | 92 (40.35) | 457 (45.56) | 58 (40.28) | 0.22 |
| Â | Right lung | 136 (59.65) | 546 (54.44) | 86 (59.72) | Â |
Histology | non-SCC | 198 (86.84) | 824 (82.32) | 115 (79.86) | 0.16 |
| Â | SCC | 30 (13.16) | 177 (17.68) | 29 (20.14) | Â |
pT (%) | T1 | 49 (21.49) | 198 (19.74) | 74 (51.39) | < 0.01 |
| Â | T2-3 | 179 (78.51) | 805 (80.26) | 70 (48.61) | Â |
PLN (median [IQR]) |  | 4.00 [2.00, 7.00] | 5.00 [2.00, 9.00] | Not available | < 0.01 |
PORT (%) | NO | 132 (57.89) | 776 (77.37) | 132 (91.67) | < 0.01 |
| Â | YES | 96 (42.11) | 227 (22.63) | 12 (8.33) | Â |