Table 2. Prevalence of allergic diseases of the subjects.
| Allergic disease | Category | No. (%) | 95% CI* |
|---|---|---|---|
| Asthma | Symptom, ever | 432 (12.92) | 11.82–14.10 |
| Symptom, recent 1 yr | 195 (5.83) | 5.09–6.68 | |
| Diagnosis, ever | 264 (7.89) | 7.03–8.86 | |
| Treatment, recent 1 yr | 92 (2.75) | 2.25–3.36 | |
| Allergic rhinitis | Symptom, ever | 1466 (43.84) | 42.17–45.53 |
| Symptom, recent 1 yr | 1309 (39.14) | 37.5–40.81 | |
| Diagnosis, ever | 1176 (35.17) | 33.57–36.80 | |
| Treatment, recent 1 yr | 876 (26.20) | 24.73–27.71 | |
| Allergic rhinitis | Symptom, ever | 735 (21.98) | 20.61–23.41 |
| Symptom, recent 1 yr | 443 (13.25) | 12.14–14.44 | |
| Diagnosis, ever | 987 (29.52) | 27.99–31.08 | |
| Treatment, recent 1 yr | 411 (12.29) | 11.22–13.45 | |
| Food allergy | Symptom, ever | 501 (14.98) | 13.81–16.23 |
| Symptom, recent 1 yr | 156 (4.67) | 4.00–5.43 | |
| Diagnosis, ever | 182 (5.44) | 4.72–6.26 | |
| Treatment, recent 1 yr | 63 (1.88) | 1.48–2.40 |
CI, confidence interval; AR, allergic rhinitis; AD, atopic dermatitis; FA, food allergy.
*95% Confidence interval (CI) of prevalence was computed by Wilson's binomial method.