| Median age | 75.5 |
| Gender | 19 females vs. 20 males |
| Stage | Stage III inoperable NSCLC |
| Median tumor diameter | 3.7 cm |
| Median tumor volume | 26.1 cm3 |
| Location (upper/middle/lower) | 13/17/9 |
| Treatment modality | 6 IMRT and 33 VMAT |