Table 1.
Demographic Features According to the Presence of Asthma in Korean Adults Aged 19–64 Years
| Asthma | |||
|---|---|---|---|
| Without (n=19,175) | With (n=484) | P value | |
| Age (years) | 40.4±0.1 | 39.9±0.8 | .4770 |
| BMIa (kg/m2) | 23.6±0.1 | 24.2±0.2 | .0031 |
| Sex | |||
| Male | 7615 (50.8) | 172 (48.8) | .4984 |
| Female | 11,560 (49.2) | 312 (51.2) | |
| Educationa | .0017 | ||
| Less than high school | 5033 (21.2) | 180 (27.8) | |
| High school | 7714 (43.8) | 179 (45.2) | |
| College and more | 6376 (35.1) | 123 (27.0) | |
| Residential area | .0515 | ||
| Urban | 15,276 (82.6) | 386 (86.2) | |
| Rural | 3899 (17.4) | 98 (13.8) | |
| Smoking statusa | .2494 | ||
| Current smoker | 4185 (28.2) | 90 (23.8) | |
| Ex-smoker | 3281 (19.1) | 88 (19.5) | |
| Nonsmoker | 11,710 (52.7) | 305 (56.8) | |
| Exercisea | .5366 | ||
| <1 day/week | 12,430 (61.9) | 304 (59.6) | |
| 1–3 days/week | 4737 (27.3) | 120 (27.5) | |
| 4–7 days/week | 1964 (10.8) | 58 (12.8) | |
Values are weighted mean±standard error or n (%); N=19,659.
a
Data availability was limited in the following categories: BMI [without asthma (n=19,088); with asthma (n=483)], education [without asthma (n=19,123); with asthma (n=482)], smoking status [without asthma (n=19,149); with asthma (n=483)], and exercise [without asthma (n=19,131); with asthma (n=482)].
BMI, body mass index.