title: Association of Serum Vitamin D Levels with Level of Control of Childhood Asthma.
abstract: OBJECTIVE
  To study the association between serum vitamin D levels and levels of asthma control in children aged 5-15 years.
  
  
  METHODS
  Children with physician-diagnosed asthma who were under follow-up for at least 6 months were enrolled. Participants were categorized into three asthma control groups as per standard guidelines, and their serum 25-hydroxy vitamin D levels and pulmonary function tests were compared.
  
  
  RESULTS
  Out of 105 children with asthma enrolled in the study, 50 (47.6%) were controlled, 32 (30.5%) were partly controlled and 23 (21.9%) were uncontrolled. Median (IQR) serum vitamin D levels in these three groups were 9.0 (6.75, 15) ng/mL, 10 (6.25, 14.75) ng/mL and 8 (5, 10) ng/mL (P=0.24), respectively.
  
  
  CONCLUSIONS
  We did not observe any association of serum 25-hydroxy vitamin D levels with the level of control of childhood asthma.
authors.affiliation: Departments of Pediatrics and *Endocrinology, AIIMS, Ansari Nagar, New Delhi, India. Correspondence to: Dr Rakesh Lodha, Professor, Department of Pediatrics, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110 029, India. rakesh_lodha@hotmail.com.
authors.forename: T K
authors.initials: TK
authors.lastname: Kavitha
authors.forename: Nandita
authors.initials: N
authors.lastname: Gupta
authors.forename: Sushil K
authors.initials: SK
authors.lastname: Kabra
authors.forename: Rakesh
authors.initials: R
authors.lastname: Lodha
mesh_terms: D000293:Adolescent; D001249:Asthma / Q000097:blood / Q000150:complications / Q000453:epidemiology*; D002648:Child; D003430:Cross-Sectional Studies; D005500:Follow-Up Studies; D006801:Humans; D007194:India / Q000453:epidemiology; D014807:Vitamin D / Q000097:blood*; D014808:Vitamin D Deficiency / Q000097:blood / Q000150:complications / Q000453:epidemiology*
chemical_list: D014807:Vitamin D