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Serum Vitamin D Profiles of Children with Asthma in Southwest Saudi: A Comparative Cross-Sectional Study. | LitMetric

Serum Vitamin D Profiles of Children with Asthma in Southwest Saudi: A Comparative Cross-Sectional Study.

Int J Gen Med

Department of Child Health, King Khalid University, Abha, 62529, Saudi Arabia.

Published: December 2024

AI Article Synopsis

Article Abstract

Background: Evidence suggests a strong association between vitamin D status and asthma, with individuals exhibiting vitamin D deficiency demonstrating increased prevalence and severity of asthma symptoms. This study aimed to determine the prevalence of vitamin D deficiency among asthmatic children, assess the association between vitamin D status and asthma severity/control, and identify potential predictors of vitamin D deficiency in this population.

Patients And Methods: This comparative cross-sectional, hospital-based study was conducted at Abha Maternity and Children's Hospital, a tertiary care and teaching institution in southwestern Saudi Arabia, between January 2023 and May 2024.

Results: A total of 331 asthmatic children and 101 non-asthmatic children were analyzed. Children with asthma had significantly lower serum vitamin D levels than those without asthma (21.5 ± 8.8 ng/mL vs 33.3 ± 13.2 ng/mL, p < 0.001). Significantly higher proportions of asthmatic children exhibited vitamin D deficiency (51.1%) and insufficiency (34.7%) compared to non-asthmatic children (19.8% and 29.7%, respectively). Serum vitamin D levels among asthmatic children showed significant negative correlations with age (r = -0.332, p < 0.001), weight (r = -0.292, p < 0.001), height (r = -0.298, p < 0.001), and BMI (r = -0.274, p < 0.001). These findings were further supported by univariate linear regression analysis. Multivariable analysis additionally confirmed age (β = -0.66, p < 0.001) and BMI (β = -0.25, p = 0.05) as independent predictors of vitamin D status, with older age and higher BMI associated with lower vitamin D levels. For each additional year of age, serum vitamin D decreased by an average of 0.66 ng/mL (p < 0.001) and a one-unit increase in BMI was associated with a decrease of 0.25 ng/mL in serum vitamin D (p = 0.05).

Conclusion: This study found a strikingly high prevalence of vitamin D deficiency among asthmatic children in southwestern Saudi Arabia, significantly exceeding rates in controls. These findings underscore the need for widespread vitamin D screening and supplementation in this population, particularly among older, overweight asthmatic children.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11663989PMC
http://dx.doi.org/10.2147/IJGM.S503293DOI Listing

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