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Table 2 Baseline characteristics of the studied patients according to steroid therapy responsiveness

From: Assessment of the role of fractional exhaled nitric oxide as a predictor of airway eosinophilia and corticosteroid responsiveness in patients with chronic cough

Parameter Steroid responders Steroid non-responders p
N = 45(64.3%) N = 25(35.7%)
Age(years) (means ± SD) 47.711 ± 11.885 45.04 ± 9.104 0.333
Male gender n (%) 20 (44.4%) 9 (36%) 0.492
BMI(kg/m2) (means ± SD) 30.044 ± 3.275 30.36 ± 2.856 0.688
CSS 8.3 ± 1.4 7.9 ± 1.6 0.394
FVC % pred. (means ± SD) 96.295 ± 2.12 94.80 ± 3.149 0.06
FEV1, % pred. (means ± SD) 83.533 ± 2.801 91.00 ± 3.606 < 0.001
FEV1/FVC (means ± SD) 85.556 ± 2.312 95.00 ± 1.607 < 0.001
FeNO (ppb) (means ± SD) 48.333 ± 11.576 20.16 ± 8.452 < 0.001
Sputum eosinophils % (means ± SD) 9.062 ± 4.496 1.780 ± 0.847 < 0.001
  1. BMI body mass index, FeNO fractional exhaled nitric oxide, FVC forced vital capacity, FEV1 forced expiratory volume in 1 s, CSS cough symptom score