TABLE 1.
Baseline characteristics of study participants (n=341)
| Age years | 55.5±15.1 |
| Female sex | 66.6 |
| Smoking status | |
| Never-smoker | 74.4 |
| Ever-smoker | 25.6 |
| Cough duration months | 60 (18–120) |
| Cough-related complications | |
| Fatigue | 34.8 |
| Incontinence | 20.7 |
| Headache | 14.6 |
| Chest pain | 11.2 |
| Syncope | 0.0 |
| Hernia | 0.0 |
| Others | 5.0 |
| Number of cough-related complications | 1 (0–1) |
| FEV1 % of predicted | 89.8±17.4 |
| FVC % of predicted | 88.1±16.0 |
| FEV1/FVC ratio % | 79.5±7.6 |
| FENO ppb | 20 (12–28) |
| Abnormal chest radiograph | 10.2 |
| Cough control rating (1–5) | 3.6±1.1 |
| Cough severity VAS (0–100) | 34.9±25.8 |
| Throat sensation VAS (0–100) | 32.4±28.6 |
| LCQ total score (3–23) | 14.1±3.9 |
| LCQ physical domain score | 5.0±1.1 |
| LCQ psychological domain score | 4.5±1.5 |
| LCQ social domain score | 4.6±1.6 |
| CHQ total score (0–22) | 7.5±4.5 |
| CHQ laryngeal sensation score | 2.8±1.7 |
| CHQ cough trigger score | 4.7±3.2 |
| EQ-5D index (0–1.00) | 0.87±0.12 |
| EQ-VAS (0–100) | 70.8±15.9 |
Data are presented as %, mean±sd or median (IQR). FEV1: forced expiratory volume in 1 s; FVC: forced vital capacity; FENO: exhaled nitric oxide fraction; VAS: Visual Analogue Scale; LCQ: Leicester Cough Questionnaire; CHQ: Cough Hypersensitivity Questionnaire; EQ-5D: EuroQoL 5-dimension.