Table 2. Risk factors for current AR in preschool children.

Risk factors	OR (95% CI)	P value	aOR* (95% CI)	P value
Genetic factors
Parental asthma	3.22 (1.71–6.07)	<0.001	2.10 (1.08–4.08)	0.028
Parental AR	2.88 (2.01–4.14)	<0.001	2.25 (0.92–5.52)	0.077
Parental AD	1.49 (0.91–2.43)	0.115	0.93 (0.54–1.61)	0.800
Past history
Past history of asthma diagnosis	3.44 (2.10–5.63)	<0.001	2.96 (1.73–5.08)	<0.001
Wheezing, last 12 months	1.89 (1.13–3.16)	0.015	2.09 (1.21–3.59)	0.008
Past history of AD diagnosis	1.74 (1.23–2.47)	0.002	1.61 (1.11–2.34)	0.012
History of bronchiolitis before 2 years of age	1.39 (0.91–2.12)	0.132	1.18 (0.74–1.89)	0.479
Breast milk feeding >6 months	1.27 (0.84–1.95)	0.262	1.24 (0.80–1.94)	0.338
Use of antibiotics in infancy (>3 days)	1.95 (1.36–2.80)	<0.001	1.97 (1.33–2.90)	<0.001
Cesarean-section delivery	1.35 (0.95–1.92)	0.100	1.37 (0.94–2.00)	0.099
Environmental tobacco smoking	1.09 (0.77–1.53)	0.127	1.15 (0.79–1.67)	0.460
Current pet ownership	0.63 (0.19–2.12)	0.451	0.66 (0.19–2.29)	0.508
Pet ownership in infancy	0.85 (0.37–1.94)	0.323	0.80 (0.34–1.86)	0.600
Dog ownership in infancy	0.96 (0.42–2.21)	0.928	0.90 (0.38–2.12)	0.810
Cat ownership in infancy	1.17 (0.13–10.51)	0.891	1.00 (0.11–9.30)	0.996
Day care attendance before 1-year-old	0.84 (0.48–1.48)	0.551	0.97 (0.53–1.76)	0.908
Having an older sibling	0.56 (0.39–0.79)	<0.001	0.52 (0.35–0.75)	0.001
Having a younger sibling	1.09 (0.76–1.57)	0.633	1.11 (0.77–1.64)	0.561
History of remodeling, currently	0.92 (0.57–1.48)	0.736	0.82 (0.48–1.39)	0.452
Indoor mold exposure during infancy	1.69 (1.18–2.40)	0.004	1.67 (1.15–2.43)	0.007
Indoor mold exposure during previous last 12 months	1.18 (0.84–1.67)	0.347	1.09 (0.75–1.58)	0.646

AR, allergic rhinitis; OR, odds ratio; aOR, adjusted odds ratio; CI, confidence interval; AD, atopic dermatitis; BMI, body mass index.

^*Adjusted by age, sex, BMI, parental history of allergic diseases, and maternal education levels.