Table 2.
Patient Characteristics
| Characteristic | Nonsmokers (n = 22) | Healthy Smokers (n = 26) | COPD (n = 34) | PTB (n = 31) |
|---|---|---|---|---|
| Age, y | 52 ± 11 | 53 ± 8 | 59 ± 8 | 51 ± 12 |
| Sex, F (M) | 6 (16) | 7 (19) | 10 (24) | 9 (22) |
| Pack-y | 0 ± 0 | 31 ± 18 | 36 ± 22 | 0 ± 0 |
| Smoking status, current (former) | 0 | 21 (5) | 18 (16) | 0 |
| FEV1, L | 2.4 ± 0.7 | 2.5 ± 0.5 | 1.9 ± 0.8a,b | 2.1 ± 0.9 |
| FEV1, % predicted | 99.5 ± 12.9 | 101.5 ± 21.2 | 58.1 ± 11.5c,d | 89.5 ± 22.9 |
| FEV1/FVC, % | 78.4 ± 5.6 | 76.1 ± 6.9 | 56.1 ± 12.7c,d | 71.2 ± 16.9 |
| Sao2, % | 98.2 ± 1.5 | 98.5 ± 0.9 | 95.8 ± 1.5e,f | 97.7 ± 0.8 |
| Taking inhaled steroids | 0 | 0 | 0 | 0 |
Data are presented as mean ± SD unless otherwise indicated. F = female; M = male; PTB = pulmonary TB; Sao2 = oxygen saturation.
a
P < .01 when compared with nonsmokers.
b
P < .01 when compared with healthy smokers.
c
P < .001 when compared with nonsmokers.
d
P < .001 when compared with healthy smokers.
e
P < .05 when compared with nonsmokers.
f
P < .05 when compared with healthy smokers.