Published online May 31, 2014.
https://doi.org/10.4168/aard.2014.2.2.114
Correlation between serum 25-hydroxyvitamin D levels and severity of atopic dermatitis in children
Abstract
Purpose
Vitamin D deficiency has been suggested to play a role in the pathogenesis of atopic dermatitis. In addition, inverse correlationship between serum 25-hydroxyvitamin D concentration and severity of atopic dermatitis has been suggested.
Methods
Clinical and laboratory parameters including serum 25-hydroxyvitamin D level and serum total IgE of 251 patients with atopic dermatitis who were 13 months to 18 years were measured. Severity of atopic dermatitis was assessed with SCORing Atopic Dermatitis (SCORAD) index. Statistical analysis was performed using Pearson correlation coefficient, one-way analysis of variance test and chi-square test.
Results
Among 251 patients, vitamin D deficiency (25-hydroxyvitamin D<20 ng/mL, group 1) was present in 76 subjects (30.3%), vitamin D insufficiency (25-hydroxyvitamin D 20-29 ng/mL, group 2) was present in 101 (40.2%), and vitamin D sufficiency (25-hydroxyvitamin D≥30 ng/mL, group 3) was present in 74 (29.5%). There was a statistically significant inverse correlation between serum concentration of 25-hydroxyvitamin D and values of SCORAD index (R=-0.24, P<0.000). Serum concentration of 25-hydroxyvitamin D were inversely correlated with total IgE (R=-0.29, P<0.000), and age (R=-0.49, P<0.000).
Conclusion
The results from this study indicate that serum concentration of 25-hydroxyvitamin D is inversely correlated with clinical severity of atopic dermatitis in children.
Fig. 1
Correlation of 25-hydroxyvitamin D with age (A), SCORing Atopic Dermatitis (SCORAD) index (B), total immunoglobulin E (IgE) (C), and C-reactive protein (CRP) (D). P<0.05 is statistically significant.
Fig. 2
Serum immunoglobulin E (IgE) (A), age (B), SCORing Atopic Dermatitis (SCORAD) index (C) according to the groups (group 1, 25-hydroxyvitamin D<20 ng/mL; group 2, 25-hydroxyvitamin D, 20-29 ng/mL; group 3, 25-hydroxyvitamin D≥30 ng/mL). Horizontal lines indicate mean values. P<0.05 is statistically significant.
Table 1
Clinical characteristics and laboratory findings of all patients
Table 2
Comparison of characteristics and laboratory findings in study groups
Table 3
25-Hydroxyvitamin D and SCORAD index according to the seasons
References
-
Nam SY, Yoon HS, Kim WK. Prevalence of allergic disease in kindergarten age children in Korea. Pediatr Allergy Respir Dis 2005;15:439–445.
-
-
Hanifin JM, Raika G. Diagnostic features of atopic dermatitis. Acta Derm Venereol Suppl (Stockh) 1980;92:44–47.
-
-
Choi EY. 25(OH)D status and demographic and lifestyle determinants of 25(OH)D among Korean adults. Asia Pac J Clin Nutr 2012;21:526–535.
-
-
Vähävihu K, Ylianttila L, Kautiainen H, Viljakainen H, Lamberg-Allardt C, Hasan T, et al. Narrowband ultraviolet B course improves vitamin D balance in women in winter. Br J Dermatol 2010;162:848–853.
-
-
Kim YH, Lee ES, Kim JS, Kim MJ, Jung JA, Yang S, et al. The effect of skin-colonizing Staphylococcus aureus and Its exotoxins on childhood atopic dermatitis. Pediatr Allergy Respir Dis 2006;16:162–170.
-
-
Hata TR, Audish D, Kotol P, Coda A, Kabigting F, Miller J, et al. A randomized controlled double-blind investigation of the effects of vitamin D dietary supplementation in subjects with atopic dermatitis. J Eur Acad Dermatol Venereol. 2013 May 03;[Epub]. http://dx.doi.org/10.1111/jdv.12176.
-