title: Vitamin D status of type 2 diabetic patients compared with healthy subjects in the Islamic Republic of Iran.
abstract: An inverse relationship has been shown between vitamin D deficiency and type 2 diabetes mellitus (DM). In this cross-sectional study in Tehran, Islamic Republic of Iran, a country with a high prevalence of vitamin D deficiency, we determined the prevalence of vitamin D deficiency among 90 type 2 DM patients and 90 healthy subjects. Based on serum levels of 25-hydroxyvitamin D, the rates of deficiency (< 50 nmol/L) and insufficiency (50-75 nmol/L) were 59.0% and 27.0% respectively in patients with type 2 DM, and 47.0% and 24.0% respectively in healthy subjects. Using the national cut-offs for vitamin D deficiency, 64.0% women with DM and 47.4% of healthy women were suffering from different degrees of vitamin D deficiency. The prevalence of vitamin D deficiency in men with type 2 DM and healthy men were 42.7% and 22.2% respectively. None of the differences between the 2 groups was statistically significant.
authors.affiliation: Department of Nutrition and Biochemistry, School of Public Health, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran.
authors.forename: M
authors.initials: M
authors.lastname: Djalali
authors.affiliation: Department of Nutrition and Biochemistry; Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran.
authors.forename: E
authors.initials: E
authors.lastname: Taheri
authors.affiliation: Department of Nutrition and Biochemistry, School of Public Health, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran.
authors.forename: A
authors.initials: A
authors.lastname: Saedisomeolia
authors.affiliation: Department of Nutrition and Biochemistry, School of Public Health, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran.
authors.forename: A
authors.initials: A
authors.lastname: Djazayeri
authors.affiliation: Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran.
authors.forename: A
authors.initials: A
authors.lastname: Rahemi
authors.affiliation: Tehran Naft Industry Hospital, Tehran, Islamic Republic of Iran.
authors.forename: M
authors.initials: M
authors.lastname: Hashemi
authors.affiliation: Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran.
authors.forename: B
authors.initials: B
authors.lastname: Larijani