Table 1.
Baseline characteristics of the Study Subjects *
| COPD group (n = 26) | Healthy smoker group (n = 10) |
Healthy non-smoker group (n = 13) |
|
|---|---|---|---|
| Height (cm) | 164.54 ± 6.08 (165) | 167.56 ± 6.60 (170) | 169.54 ± 5.94 (169) |
| Age (year) | 63.50 ± 19.75 (71) | 52.70 ± 12.33 (51) | 54.85 ± 11.42 (54) |
| Weight (kg) | 63.31 ± 11.61 (61) | 68.50 ± 14.49 (74) | 68.00 ± 7.92 (70) |
| FVC_volume (L) | 2.68 ± 0.92 (2.36) | 4.09 ± 0.68 (4.01) | 3.92 ± 0.72 (3.82) |
| FVC% | 86 ± 20 (89) | 121 ± 21 (116) | 113 ± 21 (114) |
| FEV1_volum (L) | 1.35 ± 0.63 (1.20) | 3.34 ± 0.55 (3.38) | 3.00 ± 0.77 (2.90) |
| FEV1% | 55 ± 19 (50) | 124 ± 21 (115) | 109 ± 27 (112) |
| FEV1/FVC% | 50 ± 12 (50) | 82 ± 5 (80) | 76 ± 6 (79) |
| Smoking(pack-years) | 33.46 ± 17.19(30) | 36.5 ± 18.11(35) | 0 |
| Sex (M/F) | 21/5 | 8/2 | 9/4 |
| White blood cell counts in peripheral blood(109) | 7.12 ± 2.56(6.95) | 7.06 ± 2.44(6.90) | 6.88 ± 2.66(6.73) |
| Medication (No) | |||
| Oral corticosteroid | 0 | 0 | 0 |
| Inhaled corticosteroid | 3 | 0 | 0 |
| Short-acting beta-adrenergic-receptor agonist | 4 | 0 | 0 |
| Theophyline | 0 | 0 | 0 |
| Oxygen | 1 | 0 | 0 |
*COPD denotes chronic obstructive pulmonary disease, FEV 1 forced expiratory volume in one second, FVC forced vital capacity, pack-years the number of cigarettes smoked per day, or 20 cigarettes, multiplied by the number of years of smoking. Plus-minus values are means ± SE(Mediam)