Table IV.

Relationship between serum vitamin D/cyp24a expression by PBMC and vitamin D/corticosteroid response markers in asthmatic children

Predictor	Outcome	Asthma, children
		6–12yrs, n=37		13–17yrs, n=16
		Rsq	p value	p value
Serum vitamin D, ng/ml	Log serum LL-37, pg/ml	0.39	0.006	0.10
	cyp24a expression by PBMC (ng cyp24a/ng 18s RNA)	0.23	0.016	0.86
	IgE, U/ml	0.21	0.023	0.056
	ICS dose, μg		0.11	0.72
cyp24a expression by PBMC (ng cyp24a/ng 18s RNA)	ICS dose, μg		0.067	0.21
	TNFα fold suppression by DEX in PBMC		0.069	0.28
	IL-13 fold suppression by DEX in PBMC		0.13	0.052