. Author manuscript; available in PMC: 2014 Jul 1.

Published in final edited form as: J Am Acad Dermatol. 2013 Feb 14;69(1):40–46. doi: 10.1016/j.jaad.2013.01.010

Table II.

Multivariate analysis of factors associated with serum 25-hydroxyvitamin D concentration in 94 children with atopic dermatitis.

Variables	Mean^* serum 25(OH)D concentration	p-value
Objective SCORAD (overall)		0.60 (df=2)
Objective SCORAD (mild)	25.55	0.32
Objective SCORAD (moderate)	26.86	0.49
Objective SCORAD (severe)	28.31^†
Age <3 years	31.07	<0.0001
Age ≥3 years	22.74^†
Non-black race	31.13	<0.0001
Black race	22.68^†
Season (overall)		0.0084 (df=3)
Winter	23.89	0.04
Spring	24.12	0.15
Summer	31.38	0.22
Fall	28.24^†

least squares mean;

^†

reference value; 25(OH)D, 25-hydroxyvitamin D; SCORAD, Severity Scoring of Atopic Dermatitis; df, degrees of freedom