Table 1 General data results of patients
Variables | Total | training group | validation group |
|---|---|---|---|
(n = 702) | (n = 510) | (n = 192) | |
Sex/No.(%) | |||
 male | 181 (25.8) | 144 (28.2) | 37 (19.3) |
 female | 521 (74.2) | 366 (71.8) | 155 (80.7) |
Smoking/No.(%) | |||
 Former/Current | 133 (18.9) | 116 (22.7) | 34 (17.7) |
 Never | 569 (81.1) | 394 (77.3) | 158 (82.3) |
Age/No.(%) | |||
  < 60 | 577 (82.2) | 410 (80.4) | 167 (87.0) |
  ≥ 60 | 125 (17.8) | 100 (19.6) | 25 (13.0) |
Nodule characteristics* | |||
 pGGN | 217 (29) | 165 (29.7) | 52 (26.9) |
 PSN | 531 (71) | 390 (70.3) | 141 (73.1) |
Location*(%) | |||
 Right upper lobe | 213 (28.5) | 157 (28.3) | 56 (29.0) |
 Right middle lobe | 46 (6.2) | 38 (6.8) | 8 (4.2) |
 Right lower lobe | 152 (20.3) | 111 (20.0) | 41 (21.2) |
 Left upper lobe | 209 (27.9) | 158 (28.5) | 51 (26.4) |
 Left lower lobe | 128 (17.1) | 91 (16.4) | 37 (19.2) |
Pathological subtype*(%) | |||
 AIS | 90 (12) | 81 (14.6) | 9 (4.7) |
 MIA | 322 (43) | 229 (41.3) | 93 (48.2) |
 IAC | 336 (45) | 245 (44.1) | 91 (47.1) |