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  • Title: Prevalence and Risk Factors of Hypovitaminosis-D in Children with Cognitive and Movement Disorders.
    Author: George AS, Mathew MC, Mathew A, Jacob SS, Raj JM.
    Journal: Indian J Pediatr; 2019 Sep; 86(9):777-783. PubMed ID: 31020592.
    Abstract:
    OBJECTIVES: To document the prevalence of hypovitaminosis-D in children with intellectual and movement disorders and to identify the risk factors in vitamin D deficient children. METHODS: This is a cross-sectional study on 90 children with neurodevelopmental disabilities. The prevalence of hypovitaminosis-D and the risk factors such as sun exposure, age-appropriate mobility, diet, skin color and anti-epileptic medications were examined in children with cognitive disorders and movement disorders. RESULTS: The mean serum vitamin D level in children with cognitive disability (n = 46) was found to be 26.7 ± 16.3 ng/L and in the children with movement disability (n = 44) it was 27.9 ± 10.5 ng/L. Though the risk factors were found in greater numbers in children in the deficient group (vitamin D < 30 ng/L), the difference between the two groups was not significant. Of the 90 children, 86 (95.5%) had at least one sign of vitamin D deficiency. Lowest levels of vitamin D were seen in autistic spectrum disorder and learning disabilities in the Cognitive Disability group and hemiplegia in the Movement Disability group. CONCLUSIONS: The prevalence of vitamin D deficiency in children with neurodevelopmental disabilities was 72.2%, with 76.1% in the cognitive disability group and 68.2% in the movement disability group. The risk factors were more common in vitamin D deficient children.
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