Table 1.
Cough-related clinical characteristics of chronic cough patients in the 2020 South Korea and Taiwan National Health and Wellness Survey
| South Korea (N = 101) | Taiwan (N = 259) | ||||||
|---|---|---|---|---|---|---|---|
| N | Mean | SD | N | Mean | SD | ||
| Age | 101 | 43.93 | 13.99 | 259 | 48.69 | 14.35 | |
| Years experienced CC | 71 | 3.45 | 5.13 | 167 | 5.75 | 7.28 | |
| Cough severity VAS score over the past 2 weeks | 101 | 4.50 | 2.15 | 259 | 4.46 | 1.92 | |
| Cough severity VAS score on the worst day during the past 2 weeks | 101 | 5.67 | 2.32 | 259 | 5.76 | 2.31 | |
| LCQ total score | 101 | 13.85 | 3.41 | 259 | 13.99 | 3.27 | |
| HARQ total score | 101 | 25.59 | 15.58 | 259 | 22.18 | 13.30 | |
| % | % | ||||||
| Sex | Female | 55.4% | 45.2% | ||||
| Male | 44.6% | 54.8% | |||||
| Cough more severe at a certain time of year | No | 32.4% | 53.4% | ||||
| Yes | 67.6% | 46.6% | |||||
| Cough more severe in | Spring (March, April, May) | 36.0% | 11.1% | ||||
| Summer (June, July, August) | 0.0% | 1.9% | |||||
| Fall/Autumn (September, October, November) | 0.0% | 11.1% | |||||
| Winter (December, January, February) | 64.0% | 75.9% | |||||
| How often do you cough up phlegm when coughing | Never | 6.9% | 6.6% | ||||
| Rarely | 23.8% | 37.8% | |||||
| Sometimes | 42.6% | 32.4% | |||||
| Often | 18.8% | 18.1% | |||||
| Always | 7.9% | 5.0% | |||||
| Cough start/exacerbate with cold or flu-like illness | No | 50.5% | 37.8% | ||||
| Yes | 32.7% | 38.6% | |||||
| Do not know | 16.8% | 23.6% | |||||
| Smoking status | Not smoked in the last 12 months | 56.4% | 74.1% | ||||
| Not currently smoking but smoked in last 12 months | 3.0% | 1.9% | |||||
| Currently smoking | 40.6% | 23.9% | |||||
| Experienced urinary incontinence while coughing | No | 59.4% | 82.2% | ||||
| Yes | 40.6% | 17.8% | |||||
| Experienced post-nasal drip | No | 33.7% | 27.4% | ||||
| Yes | 66.3% | 72.6% | |||||
CC chronic cough; HARQ Hull Airway Reflux Questionnaire; LCQ Leicester Cough Questionnaire; VAS visual analogue scale