Table 2 Risk factors associated with papular urticaria in children (1–6 years of age)
Factors | Prevalence | CI 95% for Prevalence | Relative standard error (%) | p value | OR | CI 95% OR |
|---|---|---|---|---|---|---|
Socioeconomic stratum | ||||||
1 to 3 | 21.1 | 18.9–23.6 | 5.7 | 0.004 | 1.75 | 1.20–2.56 |
4 to 6 | 13.3 | 9.7–17.9 | 15.3 | 1.00 | ||
Soil/earth floor in the living room | ||||||
Yes | 70.5 | 24.3–94.7 | 29.8 | 0.009 | 9.35 | 1.23–71.43 |
No | 20.3 | 18.1–22.7 | 5.6 | 1.00 | ||
Soil/earth floor in the main bedroom a | ||||||
Yes | 70.1 | 28.5–93.2 | 26.6 | 0.003 | 9.35 | 1.55–92.59 |
No | 20.1 | 18.0–22.4 | 5.4 | 1.00 | ||
Mattress material: Without springs b | ||||||
Yes | 24.1 | 20.0–28.8 | 9.2 | 0.025 | 1.48 | 1.05–2.10 |
No | 17.6 | 14.9–20.7 | 8.2 | 1.00 | ||
Members of the family usually bitten by fleas | ||||||
Yes | 23.0 | 19.6–26.7 | 7.8 | 0.030 | 1.34 | 1.02–1.74 |
No | 18.2 | 15.8–20.9 | 7,0 | 1.00 | ||
Presence of fleas in households | ||||||
Yes | 26.9 | 23.6–30.4 | 6.4 | < 0.001 | 1.84 | 1.42–2.38 |
No | 16.6 | 14.1–19.5 | 8.1 | 1.00 | ||
Siblings with atopic dermatitis | ||||||
Yes | 27.2 | 21.1–34.3 | 12.2 | 0.019 | 1.51 | 1.07–2.13 |
No | 19.9 | 17.7–22.2 | 5.6 | 1.00 | ||