title: Association of vitamin D deficiency and coronary artery disease with cardiovascular risk factors.
abstract: BACKGROUND
  Vitamin D deficiency is a prevalent condition in many countries. The aim of this study is to elucidate whether deficient vitamin D status is associated with coronary artery disease considering cardiovascular risk factors.
  
  
  METHODS
  We measured 25 (OH) D serum levels in 57 patients that were diagnosed with coronary artery disease upon coronary angiography and 62 individuals in the control group who were matched for age and sex with the patients and examined the association between serum 25 (OH) D and coronary artery disease with regard to cardiovascular risk factors.
  
  
  RESULTS
  The odds ratio of being affected by coronary artery disease in individuals with vitamin D deficiency (25 (OH) D < 30 ng/ml) was 5.8 (1.77 - 18.94) after adjustment with cardiovascular risk factors, i.e., blood pressure, diabetes, smoking, obesity, physical activity and high blood cholesterol in comparison with the control group.
  
  
  CONCLUSIONS
  Low levels of 25 (OH) D are associated with prevalent coronary artery disease independent of cardiovascular risk factors. Further investigations could demonstrate the need for vitamin D supplementations in order to prevent atherosclerosis.
authors.affiliation: Department of Community Medicine, Isfahan Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran.
authors.forename: Zahra Dana
authors.initials: ZD
authors.lastname: Siadat
authors.forename: Keyvan
authors.initials: K
authors.lastname: Kiani
authors.forename: Masoumeh
authors.initials: M
authors.lastname: Sadeghi
authors.forename: Amir Sina
authors.initials: AS
authors.lastname: Shariat
authors.forename: Ziba
authors.initials: Z
authors.lastname: Farajzadegan
authors.forename: Maryam
authors.initials: M
authors.lastname: Kheirmand
keywords: Cardiovascular disease; coronary artery disease; risk factor; vitamin D deficiency