Table 2.
Associations between the prevalence of asthma and the variables of interest
| Variable | OR (95% CI) |
|---|---|
| Sex | |
| Boy | 1.00 (reference) |
| Girl | 1.01 (0.93, 1.09) |
| Age | |
| For 1 y old | 1.13 (1.12, 1.15) |
| Parents’ history1 | |
| No | 1.00 (reference) |
| Yes | 2.39 (2.18, 2.62) |
| Monthly household income (106 KRW) | |
| Low (≤2) | 1.00 (reference) |
| Medium (2-4) | 1.01 (0.88, 1.17) |
| High (≥4) | 0.85 (0.75, 0.96) |
| Parents’ education level | |
| Middle school | 1.00 (reference) |
| Highschool | 0.74 (0.44, 1.26) |
| College | 0.72 (0.43, 1.21) |
| Graduate | 0.74 (0.43, 1.26) |
OR, odds ratio; CI, confidence interval; KRW, Korean won.
1
History of allergic disease of either parent.