title: The dependency of vitamin d status on anthropometric data.
abstract: BACKGROUND
  Hypovitaminosis D appears to parallel several cardiovascular and pulmonary diseases. However, previous findings cannot be considered conclusive, since the association may have been confounded by different anthropometric variables that were not accounted for. The present cross-sectional study was conducted to investigate the association between important explanatory variables and circulation levels of vitamin D.
  
  
  METHODS
  A total of 553 individuals attending the metabolic and medical lifestyle management clinic of the Burdwan district of India were selected from 1289 people by simple random sampling, and information regarding relevant variables and their blood was obtained. Serum 25-hydroxyvitamin (OH) D level and forced expiratory volume in 1 second were measured. Associations between different explanatory variables and circulatory 25(OH) D were analysed in linear regression models.
  
  
  RESULTS
  Of the population studied, 53% had insufficient vitamin D levels, while approximately 9% were vitamin D deficient. Variables that significantly associated with lower 25(OH)D levels were obesity, current smoking, forced expiratory volume 1 and depression.
  
  
  CONCLUSIONS
  Lower serum levels of vitamin D were associated with different variables that should be explored in several diseases before a conclusion of hypovitaminosis D is drawn.
authors.affiliation: Department of Biochemistry, Burdwan Medical College, West Bengal University of Health Sciences, West Bengal, Pin-713101 India.
authors.forename: Subinay
authors.initials: S
authors.lastname: Datta
authors.affiliation: Department of Biochemistry, Burdwan Medical College, West Bengal University of Health Sciences, West Bengal, Pin-713101 India.
authors.forename: Mrinal
authors.initials: M
authors.lastname: Pal
authors.affiliation: Department of Biochemistry, Malda Medical College, West Bengal University of Health Sciences, West Bengal, Pin-713101 India.
authors.forename: Anshuman
authors.initials: A
authors.lastname: DE
keywords: 25(OH)D; confounding variables; obesity; vitamin D; vitamin D deficiency