Table I.
Characteristics of 1798 patients with lung cancer.
| Characteristic | N (%) |
|---|---|
| Age (years) | Median, 70; range, 21–96 |
| Sex | |
| Male | 1,365 (75.9) |
| Female | 433 (24.1) |
| Smoking history | |
| Never smoker | 1,459 (81.1) |
| Ex- or current smoker | 339 (18.9) |
| Performance status | |
| 0–2 | 1,529 (85.0) |
| 3–4 | 269 (15.0) |
| Clinical stage | |
| IA-IIIB | 891 (49.6) |
| IV | 907 (50.4) |
| Initial treatment | |
| Surgery | 403 (22.4) |
| Radiotherapy | 143 (8.0) |
| Chemotherapy or chemoradiotherapy | 907 (50.4) |
| Supportive care | 345 (19.2) |
| Diabetes mellitus | |
| Present | 338 (18.8) |
| Absent | 1,460 (81.2) |