From: The importance of the lepidic component as a prognostic factor in stage I pulmonary adenocarcinoma
Stage I | Stage IIA | p valueb | |||||
---|---|---|---|---|---|---|---|
Total | Group 1 | Group 2 | Group 3 | p valuea | (n = 23) | ||
(n = 217) | (n = 73) | (n = 75) | (n = 53) | ||||
Age, years (±SD) | 64.0 (±9.3) | 64.5 (±10.3) | 65.2 (±9.4) | 61.8 (±7.4) | 0.121 | 61.0 (±7.5) | 0.131 |
Sex | <0.001 | 0.518 | |||||
Female, n (%) | 117 (58.2 %) | 29 (39.7 %) | 59(78.7 %) | 29(54.7 %) | 15 (65.2) | ||
Male, n (%) | 84 (41.8 %) | 44 (60.3 %) | 16 (21.3 %) | 24 (45.3 %) | 8 (34.8) | ||
Smoking, pack years (±SD) | 8.6 (±15.6) | 14.2 (±19.1) | 3.8 (±10.9) | 7.3 (±13.3) | <0.001 | 5.7 (±14.7) | 0.424 |
Laterality | 0.469 | 0.038 | |||||
Right, n (%) | 137 (68.2 %) | 47 (64.4 %) | 55 (73.3 %) | 35 (66.0 %) | 10 (43.5 %) | ||
Left, n (%) | 64 (31.8 %) | 26 (35.6 %) | 20 (26.7 %) | 18 (34.0 %) | 13 (56.5 %) | ||
SUVmax (±SD) | 3.6 (±3.2) | 4.5 (±3.8) | 3.7 (±3.0) | 2.0 (±1.8) | <0.001 | 8.8 (±3.7) | <0.001 |
Extent of operation | 0.416 | 0.273 | |||||
Wedge resection, n (%) | 17 (8.5 %) | 8 (11.0 %) | 5 (6.7 %) | 4 (7.5 %) | 0 | ||
Segmentectomy, n (%) | 10 (5.0 %) | 2 (2.7 %) | 6 (8.0 %) | 2 (3.8 %) | 0 | ||
Lobectomy, n (%) | 170 (84.6 %) | 62 (84.9 %) | 61 (81.3 %) | 47 (88.7 %) | 22 (95.7 %) | ||
Bilobectomy, n (%) | 4 (2.0 %) | 1 (1.4 %) | 3 (4.0 %) | 0 | 1 (4.3 %) | ||
Surgical approach | 0.475 | 0.692 | |||||
VATS, n (%) | 178 (88.6 %) | 62 (84.9 %) | 68 (90.7 %) | 48 (90.6 %) | 21 (91.3 %) | ||
Thoracotomy, n (%) | 21 (11.4 %) | 11 (15.1 %) | 7 (9.3 %) | 5 (9.4 %) | 2 (8.7 %) | ||
Sampled lymph node, n (±SD) | 13.5 (±9.5) | 14.0 (±10.7) | 14.0 (±9.2) | 12.3(±7.9) | 0.537 | 17.7 (±8.5) | 0.043 |