Table 1.
Patients characteristics (n = 310).
| Characteristics | Number (%) |
|---|---|
| Age | |
| Mean ± SD | 65.7 ± 8.4 |
| ≤60 | 80 (25.8) |
| >60 | 230 (74.2) |
| Male gender | 169 (54.5) |
| Body mass index-kg/m2 | |
| Normal (18.5–24.9) | 137 (44.2) |
| Underweight (<18.5) | 13 (4.2) |
| Overweight (25.0–29.9) | 113 (36.5) |
| Obese (≥30) | 47 (15.2) |
| Smoking | |
| Never/Former | 174 (56.1) |
| Current | 136 (43.9) |
| Performance status | |
| 0 | 123 (39.7) |
| 1 | 160 (51.6) |
| 2–3 | 27 (8.7) |
| TNM_T | |
| 0/X/1/2/3 | 171 (55.2) |
| 4 | 139 (44.8) |
| TNM_N | |
| 0–1 | 38 (12.3) |
| 2 | 210 (67.7) |
| 3 | 62 (20.0) |
| Stage | |
| IIIA | 160 (51.6) |
| IIIB | 150 (48.4) |
| Histology | |
| Squamous-cell | 116 (37.4) |
| Non-Squamous-cell | 194 (62.6) |
| Chemoradiotherapy | |
| Concurrent | 277 (89.4) |
| Sequential | 33 (10.6) |
| Type of radiation | |
| OD | 205 (66.1) |
| TD/TD+OD | 105 (33.9) |
| Total dose (Gy) | |
| ≤66 | 226 (72.9) |
| >66 | 84 (27.1) |
| Adjuvant immunotherapy | 84 (27.1) |
| GTV (cm3) | |
| Median (range) | 71.2 (4.3–1252.8) |
| <35.2 | 78 (25.2) |
| 35.2–115.2 | 153 (49.4) |
| >115.2 | 79 (25.5) |
| GTVn (cm3) | |
| Median (range) | 16.4 (0–244.1) |
| <6 | 78 (25.2) |
| 6–36.4 | 154 (49.7) |
| >36.4 | 78 (25.2) |
| GTVp (cm3) | |
| Median (range) | 41.4 (0–1195.6) |
| <9.8 | 78 (25.2) |
| 9.8–89 | 154 (49.7) |
| >89 | 78 (25.2) |
Abbreviations: GTV, gross tumor volume; GTVp, gross tumor volume-primary lung tumor; GTVn, gross tumor volume-metastatic lymph nodes; SD, standard deviation.