Table 3.
Logistic regression analysis
| OR | 95% CI (confidence interval) | p value | ||
|---|---|---|---|---|
|
| ||||
| Gender | Male | 1 | ||
| Female | 1.42 | 1.04–1.95 | p=0.015 | |
| Room sharing | Single | 1 | ||
| Sharing room with one or more people | 1.24 | 0.89–1.73 | p=0.197 | |
| House type | Others | 1 | ||
| Apartment | 2.17 | 1.16–4.05 | p=0.015 | |
| Smoking habits of parents | None | 1 | ||
| Only mother | 1.34 | 0.93–1.91 | p=0.116 | |
| Only father | 1.17 | 0.62–2.22 | p=0.634 | |
| Both parents are smokers | 1.93 | 1.23–3.03 | p=0.0024 | |
| Heating device used in the house | Floor heating | 1 | ||
| Central system | 0.84 | 0.57–1.25 | p=0.395 | |
| Wood stove | 0.69 | 0.41–1.17 | p=0.168 | |
| Coal stove | 1.15 | 0.74–1.81 | p=0.534 | |
| Room heater (with electric) | 1.08 | 0.39–3.00 | p=0.880 | |
| Owning pets | None | 1 | ||
| Pet owner | 1.06 | 0.65–1.73 | p=0.816 | |
| Owner of only cat/dog/bird | 1.05 | 0.71–1.55 | p=0.822 | |
Constant: −2.93; OR: odds ratio