Table 5 Sputum induction and peripheral blood result for the patients
Variables | FeNO ≥ 32 ppb (n = 45) | FeNO < 32 ppb (n = 30) | p-value |
|---|---|---|---|
Age, years | 58 (49, 65.5) | 63.5 (58.5, 75.3) | 0.386 |
Males, n (%) | 26 (57.8) | 16 (53.3) | 0.704 |
Mean body mass index, kg/m2 | 22.62 (3.35) | 24.07 (3.86) | 0.396 |
Smokers, n (%) | 21 (46.7) | 11 (36.7) | 0.391 |
Postbronchodilator FEV1% predicted | 82.38 (12.68) | 80.86 (10.64) | 0.71 |
Postbronchodilator FEV1 (L) | 2.12 (0.56) | 1.78 (0.52) | 0.875 |
Postbronchodilator FEV1/FVC (%) | 68.22 (8.7) | 68.5 (8.44) | 0.953 |
Eosinophil (%) in sputum | 9.89 (3.65, 20.53) | 2.44 (0.59, 4.05) | < 0.001 |
Neutrophil (%) in sputum, mean (SD) | 74.15 (18.56) | 84.9 (12.83) | 0.076 |
White blood cell (×109/L) | 7.6 (6.3, 10.3) | 7.5 (6.4, 9.6) | 0.841 |
Eosinophil (%) in peripheral blood | 1.8 (0.3, 4.8) | 1.3 (0.5, 2.93) | 0.97 |
Eosinophil count in peripheral blood (×109/L) | 0.1 (0, 0.3) | 0.1 (0.08, 0.23) | 0.889 |