Table 1 Baseline characteristics of the COPD and control subjects.
From: ADAM33 gene polymorphisms in chronic obstructive pulmonary disease
All COPD | Stable COPD | Unstable COPD | Control | |
|---|---|---|---|---|
Number | 150 | 60 | 90 | 152 |
Age | 62.6 ± 11.4 | 61.6 ± 11.7 | 63.4 ± 11.2 | 63.4 ± 18.2 |
Gender (F/M) | 50/100 | 20/40 | 30/60 | 107/45 |
Pack/years | 31.1 ± 22.9 | 28.6 ± 15.3 | 32.8 ± 26.1 | 18.7 ± 8.4 |
Smokers | 73 (49%) | 33 (55%) | 40 (44%) | 47 (31%) |
Non-Smokers | 13 (9%) | 2 (3%) | 11 (12%) | 12 (8%) |
Ex-Smokers | 64 (43%) | 25 (42%) | 39 (43%) | 93 (61%) |
FEV1 (% pred) | 52.4 ± 21.1 | 59.2 ± 19.4 | 47.9 ± 21.0 | 81.6 ± 21.5 |
FEV1/FVC | 58.6 ± 14.9 | 60.3 ± 14.7 | 57.4 ± 14.9 | 94.0 ± 12.7 |
GOLD I | 19 | 7 | 12 | |
GOLD II | 38 | 16 | 22 | |
GOLD III | 80 | 33 | 47 | |
GOLD IV | 13 | 4 | 9 |