Table 1 Characteristics of patients with stage IA non–small-cell lung cancer ≤1 cm
Characteristic | Lobectomy (N = 1768) | Segmentectomy (N = 182) | Wedge resection (N = 995) | P |
|---|---|---|---|---|
Age | < 0.001 | |||
< 60 y | 484 (27) | 30 (16) | 188 (19) | |
60–74 y | 1012 (57) | 109 (60) | 588 (59) | |
≥ 75y | 272 (16) | 43 (24) | 219 (22) | |
Gender | 0.877 | |||
Male | 675 (38) | 73 (40) | 381 (38) | |
Female | 1093 (62) | 109 (60) | 614 (62) | |
Race | ||||
White | 1470 (83) | 155 (85) | 812 (82) | 0.890 |
Black | 133 (7) | 12 (7) | 80 (8) | |
Hispanic | 68 (4) | 6 (3) | 39 (4) | |
Asian | 82 (5) | 9 (5) | 54 (5) | |
Other | 15 (1) | 0 (0) | 10 (1) | |
Side | < 0.001 | |||
Left | 647 (37) | 93 (51) | 412 (41) | |
Right | 1121 (63) | 89 (49) | 583 (59) | |
Location | 0.003 | |||
Upper | 1135 (64) | 113 (62) | 650 (65) | |
Middle | 126 (7) | 2 (1) | 52 (5) | |
Lower | 507 (29) | 67 (37) | 293 (30) | |
Grade | 0.090 | |||
Grade I | 521 (29) | 52 (28) | 310 (31) | |
Grade II | 705 (40) | 78 (43) | 340 (34) | |
Grade III | 338 (19) | 31 (17) | 206 (21) | |
Grade IV | 17 (1) | 3 (2) | 17 (2) | |
Unknow | 187 (11) | 18 (10) | 122 (12) | |
Histology | 0.153 | |||
sq | 330 (19) | 29 (16) | 191 (19) | |
ad | 1053 (59) | 119 (65) | 570 (57) | |
BAC | 228 (13) | 19 (10) | 121 (12) | |
Large cell | 37 (2) | 7 (4) | 25 (3) | |
Other | 120 (7) | 8 (4) | 88 (9) | |