Table 4 Features and spirometry parameters of subjects with and without spirometry-SAD
SAD n = 42 (20.1%) | no SAD n = 167 (79.9%) | P value | |
|---|---|---|---|
Demographics and clinical history | |||
Age (years) | 41.81 ± 12.56 | 38.95 ± 12.82 | 0.196 |
BMI (kg/m2) | 22.97 ± 3.16 | 21.86 ± 3.08 | 0.039 |
Sex: male, n (%) | 21 (50.0) | 76 (45.5) | 0.602 |
Chronic respiratory symptoms | |||
Cough, n (%) | 32 (76.2) | 145 (86.8) | 0.087 |
Sputum, n (%) | 18 (42.9) | 70 (41.9) | 0.912 |
Wheeze, n (%) | 17 (40.5) | 55 (32.9) | 0.358 |
Dyspnea, n (%) | 13 (31.0) | 32 (19.2) | 0.097 |
mMRC | 0 (0, 1) | 0 (0, 0) | 0.493 |
CAT | 7 (4, 9) | 6 (3, 8) | 0.204 |
Spirometry parameters | |||
FEV1 (% predicted) | 95.65 ± 9.57 | 106.86 ± 12.04 | < 0.001 |
FVC (% predicted) | 107.09 ± 11.25 | 105.60 ± 13.53 | 0.513 |
FEV1/FVC | 75.29 ± 3.10 | 85.92 ± 5.97 | < 0.001 |
FEF25–75% (% predicted) | 57.35 ± 6.26 | 93.80 ± 19.18 | < 0.001 |
FEF50% (% predicted) | 60.77 ± 6.11 | 98.58 ± 19.02 | < 0.001 |
FEF75% (% predicted) | 51.62 ± 10.24 | 88.85 ± 19.40 | < 0.001 |