Table 1 Patient & tumor characteristics
Gender | Â |
 Female | 53 (66%) |
 Male | 42 (44%) |
Age at Treatment Outset | Â |
 Median (years) | 75 |
 Range (years) | 51–92 |
Smoking History | Â |
 Former | 59 (62%) |
 Current | 29 (31%) |
 Never | 7 (7%) |
Pack-Years Smoking | Â |
 Median (pack-years) | 50 |
 Range (pack-years) | 0.75–210 |
AJCC Stage | Â |
 IA | 67 (71%) |
 IB | 27 (28%) |
 IIA | 1 (1%) |
Gross Tumor Volume | Â |
 Median (cm3) | 9.4 |
 Range (cm3) | 1.3–193.5 |
Longest Tumor Dimension | Â |
 Median (cm) | 2.3 |
 Range (cm) | 1.0–5.4 |
Charlson Comorbidity Index (non-age factored) | Â |
 Median | 4 |
 Range | 2–8 |
NSCLC Histology | Â |
 Squamous | 29 (31%) |
 Adenocarcinoma | 35 (37%) |
 Bronchial Alveolar Cell | 2 (2%) |
 Poorly Differentiated | 4 (4%) |
 Atypical | 25 (26%) |