Table 1. Patient demographics.
| Patient characteristics | Number | (%) |
|---|---|---|
| Total number of patients | 173 | 100 |
| Age (years) | ||
| Median | 67 | |
| Range | 35–76 | |
| Gender | ||
| Male | 116 | 67 |
| Female | 57 | 33 |
| Smoking habits | ||
| Nonsmoker | 65 | 38 |
| Smoker | 108 | 62 |
| ECOG performance status | ||
| 0 | 83 | 48 |
| 1 | 74 | 43 |
| 2 | 16 | 9 |
| Histology | ||
| Adenocarcinoma | 101 | 58 |
| Squamous cell carcinoma | 58 | 34 |
| Large-cell carcinoma | 14 | 8 |
| Pathological stage | ||
| I | 97 | 56 |
| II | 17 | 10 |
| III | 59 | 34 |
| Method of surgical resection | ||
| Pneumonectomy | 16 | 9 |
| Lobectomy | 133 | 77 |
| Segmentectomy | 3 | 2 |
| Wedge resection | 21 | 12 |
| Chemotherapy | ||
| MVP | 76 | 44 |
| Neoadjuvant therapy | 49 | 28 |
| Postoperative adjuvant therapy | 27 | 16 |
| UFT | 107 | 62 |
| Radiotherapy | 18 | 10 |
ECOG=Eastern Cooperative Oncology Group; MVP=mitomycin/vinblastin/cisplatin; UFT=a combination of tegafur and uracil.