Mean age in years (range) | 65.9 (46-81) |
Gender | Male:38; Female:1 |
Race | Caucasian:32; African-American:7 |
Mean years since diagnosis (range) | 12.5(0-54) |
Smoking status on enrollment | Current: 13; Ex-smokers:26 |
Mean smoking pack years (range) | 76.3(10-175) |
Mean FEV1 in liters (range) | 1.62(0.47- 4.07) |
Mean FEV1% predicted (range) | 47.4(15-99) |
GOLD severity (number in each group) | 0 = 2; 1 = 1; 2 = 12; 3 = 18; 4 = 6 |