Table 1.
Baseline characteristics (n = 76).
| Characteristic | n (%) or median (range) |
|---|---|
| Sex | |
| Female | 29 (38.16) |
| Male | 47 (61.84) |
| Age at diagnosis (years) | 72 (40–89) |
| Karnofsky performance status score | |
| ≥80 | 55 (72.37) |
| <80 | 21 (27.63) |
| Smoking status | |
| Positive | 32 (42.11) |
| Negative | 44 (57.89) |
| Underlying respiratory system disease | |
| Yes | 45 (59.21) |
| No | 31 (40.79) |
| Tumor diameter (mm) | 23.00 (9.00–48.00) |
| Gross tumor volume (cm3) | 10.61 (0.64–85.37) |
| Tumor location | |
| Central | 20 (26.32) |
| Peripheral | 56 (73.68) |
| SUVmax | 5.10 (1.00–24.00) |
| Tumor histology | |
| Adenocarcinoma | 39 (51.32) |
| Squamous | 19 (25.00) |
| Unknown | 18 (23.68) |
| SBRT dose and fractionation | |
| 50 Gy in 5 fractions | 26 (34.21) |
| 60 Gy in 10 fractions | 50 (65.79) |
SUVmax, maximum standardized uptake value; SBRT, stereotactic body radiation therapy.