Vitamin D Deficiency as a Factor Influencing Asthma Control in Children.

Objective: To study the association between asthma control and serum 25OH Vitamin D levels in children with moderate persistent asthma on preventer therapy.

Methods: Children aged 6-18 years, with moderate persistent asthma, on preventer therapy for ≥2 months were included. Control was categorized as good, partial or poor as per GINA guidelines.