Characteristic N=99   Number (%)
Age Average Age 63 (17-88)  
Sex Male 56 57%
Female 43 43%
History of smoking Yes 75 76%
No 24 24%
Race White 54 55%
Hispanic 22 22%
Native American 4 4%
African American 3 3%
Other/Unknown 16 16%
COPD: Yes 26 26%
No 61 62%
Unknown 12 12%
Cancer type Non-small cell lung 50 51%
Esophagus 11 11%
Small Cell lung 6 6%
Other 22 22%
Metastases to lung 10 10%
Chemotherapy None 30 30%
Neoadjuvant 9 9%
Concurrent 47 47%
Previous (unspecified) 10 10%
Unknown 3 3%
Clinical RP Grade 0 47 47%
1 41 41%
2 6 6%
3 3 3%
4 1 1%
5 1 1%
Mean Lung Dose 9.68 Gy    
Mean Total Lung Volume 3290 cc    
Abbreviations: COPD: Chronic Obstructive Pulmonary Disease; RP: Radiation Pneumonitis; CC: Cubic Centimeter
Table 2: Patient Characteristics.