Abstract
OBJECTIVES: To measure the prevalence of vitamin D deficiency (through the 25-hydroxyvitamin D metabolite) in pediatric patients using antiepileptic drugs. SOURCE OF DATA: Meta-analysis of studies identified through search in the PubMed, Embase, LILACS, and Cochrane Library databases, on February 19, 2019. SUMMARY OF DATA: A total of 748 articles were identified, 29 of which were relevant to the objectives of this study. The prevalence of vitamin D deficiency found was 0.32 (95% CI=0.25-0.41; I(2)=92%, p<0.01). In the subgroup analyses, the most significant results were observed in the group of patients using cytochrome P450-inducing antiepileptic drugs, with a prevalence of 0.33 (95% CI=0.21-0.47; I(2)=86%, p<0.01) and, considering the study design, in the subgroup of cohort studies, with a prevalence of 0.52 (95% CI=0.40-0.64; I(2)=76%, p<0.01). CONCLUSIONS: Taking into account the deleterious effects of vitamin D deficiency on the bone health of individuals using antiepileptic drugs, it is suggested to include in their care 25-hydroxyvitamin D monitoring, cholecalciferol supplementation, and treatment of the deficiency, when present.