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Decreased circulatory levels of Vitamin D in Vitiligo: a meta-analysis
Varikasuvu, Seshadri Reddy; Aloori, Sowjanya; Varshney, Saurabh; Bhongir, Aparna Varma.
  • Varikasuvu, Seshadri Reddy; All India Institute of Medical Sciences. Department of Biochemistry. Deoghar. IN
  • Aloori, Sowjanya; Telangana State Residential School & College. Department of Health Education. Choutuppal. IN
  • Varshney, Saurabh; All India Institute of Medical Sciences. Deoghar. IN
  • Bhongir, Aparna Varma; All India Institute of Medical Sciences. Department of Biochemistry. Bibinagar. IN
An. bras. dermatol ; 96(3): 284-294, May-June 2021. tab, graf
Article in English | LILACS | ID: biblio-1285081
ABSTRACT
Abstract

Background:

The serum Vitamin D status in patients with vitiligo is ambiguous when compared to controls. A systematic review and updated meta-analysis were conducted to evaluate the association between Vitamin D and vitiligo.

Methods:

Relevant studies were identified by searching PubMed and other databases. The random effects model was used to obtain standardized mean differences and pooled correlation coefficients. Meta-regression and sub-group analyses were conducted to explore heterogeneity. The presence of publication bias and the study robustness were tested using funnel plot and sensitivity analyses, respectively.

Results:

This meta-analysis finally included 31 studies. Compared with controls, vitiligo patients showed significantly decreased serum Vitamin D levels (standardized mean difference = −1.03; p < 0.0001). The sub-group analysis showed that vitiligo patients with indoor/urban work had a significantly lower Vitamin D level when compared to their outdoor/rural counterparts (standardized mean differences = −0.45; p = 0.03). The sensitivity analysis indicated that no single study had a significant influence on the overall outcome, suggesting the robustness of this meta-analysis. Study

limitations:

Varied sample sizes and heterogeneous study populations from different countries are the limitations of this study. However, the between-study heterogeneity has been addressed by the random-effects model with meta-regression and sensitivity analyses.

Conclusions:

This meta-analysis showed significantly decreased Vitamin D level in vitiligo, and its association with indoor/outdoor type of work of vitiligo patients. This study highlights the need to assess Vitamin D status for improving its level in vitiligo.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Vitamin D Deficiency / Vitiligo Type of study: Systematic reviews Limits: Humans Language: English Journal: An. bras. dermatol Journal subject: Dermatology Year: 2021 Type: Article Affiliation country: India Institution/Affiliation country: All India Institute of Medical Sciences/IN / Telangana State Residential School & College/IN

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Full text: Available Index: LILACS (Americas) Main subject: Vitamin D Deficiency / Vitiligo Type of study: Systematic reviews Limits: Humans Language: English Journal: An. bras. dermatol Journal subject: Dermatology Year: 2021 Type: Article Affiliation country: India Institution/Affiliation country: All India Institute of Medical Sciences/IN / Telangana State Residential School & College/IN