TABLE 3.

SERUM VITAMIN D LEVELS AND CATEGORICAL MEASURES OF ALLERGY AND DISEASE SEVERITY IN COSTA RICAN CHILDREN WITH ASTHMA

	Odds Ratio* (95% CI) (P Value)
Outcome	Unadjusted	Multivariate Model†
Antiinflammatory medications‡	0.32 (0.10–1.09) (0.07)	0.21 (0.06–0.75) (0.02)
Inhaled steroid	0.20 (0.06–0.68) (0.01)	0.14 (0.04–0.50) (0.004)
PD20 ≤ 8.58 μmol of methacholine	0.17 (0.03–1.06) (0.06)	0.15 (0.02–0.96) (0.05)
Hospitalizations for asthma in the previous year	0.06 (0.004–0.74) (0.03)	0.05 (0.004–0.71) (0.03)

Boldface entries indicate significance at α < 0.05.

^*Odds ratios are for each log₁₀ increase in vitamin D level.

^†Multivariate model adjusted for age, sex, BMI z-score, and parental education for all outcomes. PD₂₀ additionally adjusted for prebronchodilator FEV₁.

^‡Defined as use of either inhaled steroid or leukotriene inhibitor.