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Table 1 Baseline characteristics of the studied patients with chronic cough and the healthy control group

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 The studied patients with chronic cough (n = 70) The healthy control group N = (20) p
Age (years) (means ± SD) 46.75 ± 10.89 43.68 ± 12.89 0.132
Male gender n (%) 29 (41.4%) 9 (36%) 0.4
BMI(kg/m2) (means ± SD) 30.15 ± 3.11 31.236 ± 5.17 0.137
FVC % pred. (means ± SD) 95.75 ± 2.62 95.98 ± 2.84 0.371
FEV1, % pred. (means ± SD) 86.2 ± 4.74 86.67 ± 3.89 0.523
FEV1/FVC (means ± SD) 88.92 ± 5.001 86.67 ± 3.89 0.22
FeNO (ppb) (means ± SD) 38.27 ± 18.01 18.37 ± 5.82 < 0.001
Sputum eosinophils % 6.46 ± 4.07 1.20 ± 0.34 < 0.001
  1. BMI body mass index, FeNO fractional exhaled nitric oxide, FVC forced vital capacity, FEV1 forced expiratory volume in 1 s