Subject characteristics
| Characteristic | Chronic coughers (n=17) | Controls (n=15) | p Value |
| Male (n, %) | 6 (35) | 7 (47) | 0.720 |
| Age (years) | 55±16 | 47±21 | 0.317 |
| BMI (kg/m2) | 28±7 | 24±1 | 0.101 |
| FEV1 (% predicted) | 96±17 | 100±17 | 0.541 |
| FVC (% predicted) | 107±18 | 108±20 | 0.855 |
| FEV1/FVC (%) | 75±7 | 78±8 | 0.301 |
| Duration of cough (months) | 34 (24–85) | – | – |
Data presented as mean±SD, median (IQR) or n (%).
BMI, body mass index; FEV1, forced expiratory volume in 1 s; FVC, forced vital capacity.