Table 1.
Patient characteristics
| Characteristics | Number of patients (%)
|
P value | |
|---|---|---|---|
| < 75 years (n=442) |
≥ 75 years (n=330) |
||
| Mean age, years | 67.0 | 80.8 | |
| Median age, years (range) | 68.5 (46-74) | 80.1 (75.0-91.8) | |
| Sex | 0.212 | ||
| Male | 229 (51.8) | 156 (47.3) | |
| Female | 213 (48.2) | 174 (52.7) | |
| Tumor stage* | 0.219 | ||
| T1 | 376 (85.1) | 266 (80.6) | |
| T2 (T2a: ≤5 cm, pleural invasion) | 60 (13.6) | 60 (18.2) | |
| T3 (with satellite nodule) | 6 (1.4) | 4 (1.2) | |
| Histology | 0.961 | ||
| Adenocarcinoma | 234 (52.9) | 171 (51.8) | |
| Squamous | 149 (33.7) | 119 (36.1) | |
| Other | 11 (2.5) | 8 (2.4) | |
| NSC NOS | 43 (9.7) | 29 (8.8) | |
| No pathology | 5 (1.1) | 3 (0.9) | |
*
The IASLC Lung Cancer Staging Project: Proposals for the revision of the TNM stage groupings in the forthcoming (seventh) edition of the TNM classification of malignant tumors. J Thorac Oncol 2007;2:706-714.