Table 1 Patient clinicopathologic features and surgical procedures
Elderly group (n = 285) | Younger group (n = 1055) | p | |
|---|---|---|---|
Median age, years (range) | 73 (70–86) | 58 (20–69) | <0.001* |
Sex, male, n (%) | 201 (70.5) | 642 (60.9) | 0.003** |
Pathologic stage, n (%) | <0.001** | ||
Stage IA | 119 (41.7) | 527 (59.4) | |
Stage IB | 166 (58.3) | 428 (40.6) | |
Histologic subtype, n (%) | <0.001** | ||
Adenocarcinoma | 171 (60) | 824 (78.1) | |
Squamous cell carcinoma | 105 (36.8) | 211 (20) | |
Large cell neuroendocrine carcinoma | 9 (3.2) | 20 (1.9) | |
Extent of resection, n (%) | 0.280** | ||
Sublobar resection | 23 (8.1) | 82 (7.8) | |
Lobectomy | 250 (87.7) | 947 (89.7) | |
Bilobectomy | 12 (4.2) | 26 (2.5) | |
Type of operation, n (%) | <0.001** | ||
Video-assisted thoracoscopic surgery | 127 (44.6) | 656 (62.2) | |
Thoracotomy | 158 (55.4) | 399 (37.8) |