Table 2.
Odds ratios (95% confidence intervals) for the associations between aeroallergen sensitization and atopic dermatitis symptoms in the previous 12 months by quintile levels of urinary propyl-paraben.
| Urinary propyl-paraben level | OR (95% CI) | P value | aOR* (95% CI) | P value |
|---|---|---|---|---|
| Aeroallergen sensitization | ||||
| 1st Quintile | Ref | Ref | ||
| 2nd Quintile | 1.142 (0.636–2.049) | 0.657 | 1.248 (0.685–2.276) | 0.469 |
| 3rd Quintile | 1.979 (1.086–3.609) | 0.026 | 2.083 (1.127–3.849) | 0.019 |
| 4th Quintile | 1.979 (1.086–3.609) | 0.026 | 1.902 (1.028–3.517) | 0.040 |
| 5th Quintile | 1.913 (1.048–3.495) | 0.035 | 2.021 (1.093–3.738) | 0.025 |
| Atopic dermatitis symptoms in the previous 12 months | ||||
| 1st Quintile | Ref | Ref | ||
| 2nd Quintile | 1.442 (0.656–3.171) | 0.362 | 1.442 (0.656–3.171) | 0.362 |
| 3rd Quintile | 1.011 (0.439–2.329) | 0.980 | 1.011 (0.439–2.329) | 0.980 |
| 4th Quintile | 0.800 (0.336–1.907) | 0.615 | 0.800 (0.336–1.907) | 0.615 |
| 5th Quintile | 1.479 (0.673–3.249) | 0.330 | 1.479 (0.673–3.249) | 0.330 |
aOR adjusted odd ratio, CI confidence interval, OR odds ratio, Ref. reference group.
Numbers in bold indicate a significant difference (P < .05).
*Logistic regression analysis was performed with adjustment for confounding factors, including age, gender, body mass index z-score, the presence of visible mold at home, and exposure to environmental tobacco smoke.