Table 1.
Patient demographics and baseline disease characteristics.
| Patients (n = 160) | Ratio (%) | |
|---|---|---|
| Age (years) | 59.0 (25–75) | |
| Gender | ||
| Male | 126 | 78.8 |
| Female | 34 | 21.2 |
| Smoking status | ||
| Smoker | 120 | 75.0 |
| Nonsmoker | 40 | 25.0 |
| Histological findings | ||
| Squamous cell carcinoma | 50 | 31.2 |
| Adenocarcinoma | 40 | 25.0 |
| Others | 15 | 9.4 |
| Small cell carcinoma | 55 | 34.4 |
| Stages of lung cancer | ||
| I | 5 | 3.1 |
| II | 10 | 6.2 |
| II | 110 | 68.8 |
| IV | 35 | 21.9 |
| Chemotherapy | ||
| Yes | 127 | 79.4 |
| No | 33 | 20.6 |
| Types of chemotherapy | ||
| CCRT | 30 | 18.8 |
| SCRT | 20 | 12.5 |
| 110 | 68.7 | |
| GTV (cm3) | 127.54 (13.12–780.36) | |
| V20 (lung-PTV) (%) | 36 (3–75) |
CCRT: concurrent chemoradiotherapy; SCRT: sequential chemoradiotherapy; GTV: gross tumor volume; PTV = planning target volume; V20 = percentage volume of structure receiving dose of 20 Gy or more.