title: [Vitamin D deficiency associated with insulin resistance in medical residents].
abstract: BACKGROUND
  Several studies have reported a correlation between vitamin D deficiency and insulin resistance; however, other clinical trials show that vitamin D supplementation do not normalize glucose and insulin levels. We designed a study to show if there is a correlation between serum vitamin D and the homeostatic model assessment 2 (HOMA 2).
  
  
  METHODS
  It was designed a cross-sectional, descriptive, and analytical study, which included medical residents. They answered a questionnaire to record the time of sun exposure. We took anthropometric measurements, such as weight, height, and waist circumference, as well as some serum levels: serum vitamin D, serum insulin, fasting blood glucose, triglycerides and high-density lipoprotein-cholesterol. The correlation between serum vitamin D and HOMA 2 was determined by the correlation of Pearson; it was considered significant a p < 0.05.
  
  
  RESULTS
  The decreased serum vitamin D levels did not correlate with high concentrations of HOMA 2 (r = -0.11, p = 0.34). A negative correlation between vitamin D levels and index size waist was observed (r = -0.27, p = 0.025). HOMA 2 was positively correlated with waist size index (r = 0.23, p = 0.05) and triglycerides (r = 0.61, p = 0.01) and negatively with high density lipoprotein-cholesterol (r = -0.26, p = 0.02).
  
  
  CONCLUSIONS
  We couldn't show the correlation between vitamin D deficiency and insulin resistance.
authors: Departamento de Medicina Interna, Hospital de Especialidades, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Ciudad de México, México. mnoyola.g@gmail.com.
authors: Maura Estela
authors: ME
authors: Noyola-García
authors: Alberto
authors: A
authors: Díaz-Romero
authors: Mariana
authors: M
authors: Arce-Quiñones
authors: Blanca Alicia
authors: BA
authors: Chong-Martínez
authors: Juan Carlos
authors: JC
authors: Anda-Garay
mesh_terms: D000328:Adult; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D007333:Insulin Resistance; D008297:Male; D008800:Mexico; D013337:Students, Medical; D014808:Vitamin D Deficiency / Q000175:diagnosis / Q000503:physiopathology*
keywords: Insulin resistance; Vitamin D deficiency