From: Serial pulmonary function tests to diagnose COPD in chronic heart failure
All (n = 187) | No COPD (n = 127) | COPD (n = 60) | P-value | |
---|---|---|---|---|
Symptoms, n (%) | ||||
Cough | 67 (36) | 38 (30) | 29 (48) | 0.014 |
Sputum | 43 (23) | 26 (20) | 17 (28) | 0.233 |
Dyspnoea | 153 (82) | 101 (80) | 52 (87) | 0.237 |
ABHR | 55 (29) | 29 (23) | 26 (43) | 0.004 |
Questionnaires | ||||
MLHFQ | 20 ± 17 | 19 ± 17 | 21 ± 18 | 0.568 |
MRC | 1.5 ± 1.3 | 1.4 ± 1.3 | 1.7 ± 1.4 | 0.149 |
Borg | 0.9 ± 1.2 | 0.8 ± 1.2 | 1.1 ± 1.3 | 0.036 |
Laboratory data | ||||
NT-pro-BNP1, pmol/L | 201 ± 289 | 184 ± 273 | 236 ± 321 | 0.290 |
NT-pro-BNP2, pmol/L | 198 ± 308 | 179 ± 289 | 239 ± 345 | 0.250 |
Spirometry | ||||
FEV1, L | 2.5 ± 0.8 | 2.7 ± 0.8 | 2.1 ± 0.7 | 0.000 |
FEV1, % predicted | 88 ± 21 | 96 ± 15 | 72 ± 22 | 0.000 |
FVC, L | 3.7 ± 1.0 | 3.7 ± 1.0 | 3.8 ± 1.0 | 0.699 |
FVC, % predicted | 102 ± 19 | 102 ± 17 | 101 ± 23 | 0.602 |
FEV1/FVC, % | 68 ± 11 | 74 ± 5 | 55 ± 10 | 0.000 |