Table 1.
Characteristics of the patients.
| Characteristics | No. (%) | ||
|---|---|---|---|
| Sex (%) | |||
| Male | 27 (64) | ||
| Female | 15 (36) | ||
| Age (years) | |||
| Median | 78 | ||
| Range | 58–92 | ||
| Tumor histological type | |||
| Adenocarcinoma | 21 (50) | ||
| Squamous cell carcinoma | 9 (21) | ||
| NOS | 2 (5) | ||
| Sarcomatoid | 1 (2) | ||
| Unproven | 9 (21) | ||
| Tumor location | |||
| Central | 11 (26) | ||
| 2 cm within proximal bronchial tree | 1 (2) | ||
| 2 cm within mediastinum | 10 (24) | ||
| Peripheral | 9 (21) | ||
| Peripheral but 1 cm within chest wall | 22 (52) | ||
| Close to brachial plexus | 1 (2) | ||
| Close to chest wall | 21 (50) | ||
| T stage | |||
| T1a | 16 (38) | ||
| T1b | 17 (41) | ||
| T2a | 9 (21) | ||
| Total dose/fractions, (BED10 *) | |||
| 60 CGE/4 fx (150) | 11 | ||
| 50 CGE/4 fx (112.5) | 22 | ||
| 70 CGE/10 fx (119) | 6 | ||
| 60 CGE/10 fx (96) | 3 | ||
| PTV (cm3) | |||
| Median | 34.55 | ||
| Range | 9.6–84 | ||
* BED10, biologically effective dose using α/β ratio of 10. NOS, not otherwise specified; CGE, cobalt gray equivalent; fx, fraction; PTV, planning target volume; cm3, cubic centimeter.