Variable | Cases | Controls | p |
---|---|---|---|
n | 315 | 314 | |
Age, (mean ± SD) year | 71.9 ± 10.1 | 71.2 ± 6.8 | 0.307 |
Gender (male/female), n | 239/76 | 237/77 | 0.926 |
Smoking (current/former/never/unavailable), n | 83/64/166/2 | 34/18/118/114 | |
BMI, (≤ 24 kg/m2/ > 24 kg/m2/unavailable), n | 251/29/35 | 67/78/169 | |
COPD with complication (yes/no/unavailable), n | 93/174/48 | ||
COPD with wheezing | 153/123/39 | ||
COPD with dyspnea | 115/166/34 | ||
COPD with chest distress | 102/179/34 | ||
respiratory rate, times/min | 22.3 ± 2.5 | ||
pulse rate, times/min | 86.3 ± 11.7 | ||
FVC, L | 2.0 ± 0.7 | ||
FEV1, L | 1.1 ± 0.6 | ||
FEV1/FVC, % | 51.4 ± 11.8 | ||
GOLD spirometric grade, n (%) | |||
1 | 34 (10.8%) | ||
2 | 107 (46.7%) | ||
3 | 102 (32.4%) | ||
4 | 32 (10.2%) |