摘要
Objective:To assess the relationship between the severity of atopic dermatitis(AD)in children of varying weight categories and their serum 25-hydroxyvitamin D[25(OH)D]levels.Methods:The study population comprised 899 patients with AD and 854 age-and sex-matched controls.The Mann-Whitney U test and Kruskal-Wallis H tests were used to assess differences between groups,and Spearman correlation analysis was used to test correlation.Results:The 25(OH)D level in the AD group was M(Q_(25),Q_(75)),24.0(19.7,28.4)ng/mL,which was significantly lower than the control group(26.4[23.6,29.9]ng/mL;Z=-3.34,P=0.001).25(OH)D levels in children with AD were negatively correlated with body mass index(r=-0.30,P<0.001),Severity scoring of Atopic Dermatitis(SCORAD;r=-0.14,P<0.001),total immunoglobulin E(r=-0.13,P<0.001),and eosinophil(r=-0.08,P=0.017).There were statistically significant differences in 25(OH)D(H=18.46,P<0.001),total immunoglobulin E(H=9.13,P=0.010),eosinophil(H=67.17,P<0.001),and SCORAD(H=10.49,P=0.005)among groups with different body mass index classification.The 25(OH)D levels were 22.3(17.5,27.1)ng/mL in the overweight AD group and 22.3(17.6,25.7)ng/mL in the obese AD group,which were significantly lower than those in the normal-weight AD group(24.7[20.4,25.5]ng/mL;P=0.003,P=0.004).25(OH)D levels were negatively correlated with SCORAD in obese AD patients(r=-0.25,P=0.010).Conclusion:Vitamin D insufficient or deficient is obvious in children AD patients.The 25(OH)D levels in the overweight/obese AD group are significantly lower than those in the normal-weight AD group.Vitamin D level is negatively correlated with SCORAD in obese children with AD.
基金
supported by the Key Project of Social Development in Jiangsu Province(No.BE2020632)
National Natural Science Foundation of China(Nos.82073446 and 82103735)
CAMS Innovation Fund for Medical Sciences(No.2021-I2M-1-059)
Nanjing Incubation Program for National Clinical Research Center(No.2019060001)
作者简介
Corresponding author:Xu Yao,Dr.,Department of Allergy and Rheumatology,Hospital for Skin Diseases(Institute of Dermatology),Chinese Academy of Medical Sciences and Peking Union Medical College,Nanjing,Jiangsu 210042,China.E-mail:dryao_xu@126.com.
