Table 2.

Univariate and multivariate logistic regression analysis for risk factors for asthma occurrence.

Parameters	OR	95% CI	P-value	OR	95% CI	Adjusted p-value
	Univariate analysis			Multivariate analysis
Age (years)	1.015	0.974–1.059	0.474	0.992	0.950–1.037	0.727
Sex	1.000	0.847–1.180	1.000	0.961	0.810–1.140	0.648
Household smoker	1.261	1.041–1.528	0.018	1.167	0.959–1.419	0.124
Body mass index (kg/m2)	1.034	1.021–1.047	<0.001	1.032	1.018–1.046	<0.001
Hispanic ethnicity
Mexican American	Referent
Other Hispanic	1.231	0.882–1.718	0.222	1.317	0.940–1.846	0.109
Non-Hispanic White	1.393	1.083–1.792	0.010	1.437	1.109–1.862	0.006
Non-Hispanic Black	1.654	1.288–2.123	<0.001	1.614	1.250–2.086	<0.001
Other Race	1.088	0.817–1.449	0.564	1.196	0.893–1.601	0.229
Dietary fiber (g)	0.991	0.981–1.001	0.069	0.997	0.987–1.008	0.584
Vitamin D (μg)	0.983	0.969–0.999	0.049	0.990	0.972–1.009	0.296

Abbreviations: OR, odds ratio; 95% CI, 95% confidence interval.