ArticleThe open respiratory medicine journal2026
Rickets, Vitamin D Deficiency and Tuberculosis in Children of St. Petersburg and its Region.
Article in The open respiratory medicine journal, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Introduction: Given the widespread prevalence of vitamin D insufficiency and its clinical manifestations (such as rickets and compromised immune status) in children, this study aimed to assess the likelihood of tuberculosis (TB) diagnosis in children with TB infection and positive ESAT-6/CFP-10 test results, alongside signs of vitamin D deficiency (clinical rickets and/or low serum vitamin D levels). Method: A total of 98 children aged 1-14 years were examined at the TB department of St. Petersburg Children's Infectious Diseases Hospital No. 3 (2022-2024). Inclusion criteria were a positive ATP test and/or IGRA result. Exclusion criteria included immunodeficiency disorders and hereditary diseases. Diagnostic evaluation for TB and vitamin D status ( Result: Rickets-related changes were observed in 70.4±4.6% of cases. Vitamin D insufficiency was detected in 21.4±4.4%, moderate deficiency in 36.7±5.1%, and severe deficiency in 33.7±5.0%. A significantly higher probability of active TB diagnosis was found in children with: • Rickets signs: OR=4.009 (95% CI 1.609-9.987), RR=1.872 (1.148-3.054), φ=0.310. • Vitamin D deficiency: OR=10.411 (3.762-28.809), RR=3.182 (1.648-6.145), φ=0.493. • Either factor: OR=41.167 (10.699-158.404), RR=27.986 (2.720-23.443), φ=0.677 (strong association). Discussion: The low vitamin D levels in children require not only special attention from TB specialists to patients with tuberculosis infection who test positive in immunological tests for ESAT-6 and CFP-10 antigens and show signs of rickets and/or vitamin D deficiency, but also increased vigilance from pediatricians in the timely diagnosis and treatment of rickets. Rickets often manifests early, has a prolonged course, and can lead to impaired immune status, which is significant for the progression from latent tuberculosis infection to active disease. Conclusion: Vitamin D deficiency and rickets should prompt heightened TB monitoring in high-risk children, emphasizing early pediatric intervention to prevent immunodeficiency and TB progression.
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