Table 1. General Characteristics by Allergic Rhinitis, Asthma, and Atopic Dermatitis.
| Characteristics | Allergic Rhinitis | Asthma | Atopic Dermatitis | ||||||
|---|---|---|---|---|---|---|---|---|---|
| No | Yes | P-value | No | Yes | P-value | No | Yes | P-value | |
| Number (n‡, %) | 2,369 (77.9) | 671 (22.1) | 2,858 (94.0) | 182 (6.0) | 2,569 (84.5) | 471 (15.5) | |||
| Age (year, mean, SD) | 8.8 ± 0.1 | 9.0 ± 0.1 | 0.237 | 8.9 ± 0.1 | 8.3 ± 0.3 | 0.031* | 8.9 ± 0.1 | 8.7 ± 0.2 | 0.505 |
| Sex (n, %)‡ | 0.05 | 0.009† | 0.109 | ||||||
| Male | 1,234 (50.6) | 375 (56.1) | 1,488 (51.1) | 121 (62.7) | 1,365 (52.5) | 244 (47.4) | |||
| Female | 1,135 (49.4) | 296 (43.9) | 1,370 (48.9) | 61 (37.3) | 1,204 (47.5) | 227 (52.3) | |||
| BMI (kg/m2, n, %)‡ | 0.153 | 0.679 | 0.357 | ||||||
| Underweight | 103 (4.3) | 30 (2.8) | 128 (4.1) | 5 (2.8) | 109 (3.8) | 24 (5.2) | |||
| Healthy | 1,629 (69.4) | 482 (71.4) | 1,991 (70.0) | 120 (67.2) | 1,792 (70.3) | 319 (67.0) | |||
| Overweight | 383 (16.2) | 107 (17.8) | 457 (16.4) | 33 (18.2) | 410 (16.1) | 80 (18.9) | |||
| Obesity | 254 (10.2) | 52 (8.0) | 282 (9.6) | 24 (11.9) | 258 (9.9) | 48 (8.9) | |||
| Household (N, mean, SD) | 4.3 ± 0.0 | 4.2 ± 0.1 | 0.071 | 4.3 ± 0.0 | 4.3 ± 0.1 | 0.634 | 4.3 ± 0.0 | 4.3 ± 0.1 | 0.575 |
| Income (n, %)‡ | 0.004† | 0.284 | 0.574 | ||||||
| Lowest | 201 (11.7) | 40 (8.7) | 224 (11.0) | 17 (12.4) | 209 (11.5) | 32 (8.7) | |||
| Low Middle | 710 (32.9) | 160 (25.5) | 813 (31.4) | 57 (31.1) | 740 (31.2) | 130 (31.9) | |||
| Upper Middle | 812 (31.6) | 260 (39.8) | 1,023 (33.9) | 49 (26.0) | 900 (33.0) | 172 (35.5) | |||
| Highest | 646 (23.7) | 211 (26.1) | 798 (28.3) | 59 (30.5) | 720 (24.3) | 137 (23.9) | |||
| Region (n, %)‡ | 0.586 | 0.427 | 0.196 | ||||||
| Urban | 1,690 (70.1) | 479 (71.7) | 2,038 (70.3) | 131 (73.8) | 1,829 (69.8) | 340 (73.9) | |||
| Rural | 679 (29.9) | 192 (28.3) | 820 (29.7) | 51 (26.2) | 740 (30.2) | 131 (26.1) | |||
* Mean difference using a linear regression analysis with complex sampling. Significance at P < 0.05.
† Chi-square test with Rao-Scott correction and complex sampling. Significance at P < 0.05.
‡ The number of participants was described as unweighted values; Rate (%) was described as weighted values.