title: [Ankle-brachial index and albuminuria correlation in diabetic patients with normal blood pressure].
abstract: BACKGROUND
  both, the ankle-brachial index < 0.9, and microalbuminuria are considered markers of endothelial dysfunction. Our objective was to evaluate if there is a correlation between the ankle-brachial index (ABI) and the degree of albuminuria in diabetic normotensive patients.
  
  
  METHODS
  we included 32 diabetic normotensive patients and measured their ABI, and their 24-h urinary albumin excretion by nephelometry; the ABI and albuminuria were correlated with the Spearman correlation coefficient.
  
  
  RESULTS
  we did not find overall correlation between the ABI and albuminuria (r = 0.21, 95 % CI = -0.14-0.52, p = 0.12); However, when we measured the correlation of an ABI < 0.9 with any degree of albuminuria, we found a significant correlation (r = -0.32 ± 0.11, 95 % CI = 0.027 to -0.6, p = 0.03); and when the correlation of ABI with albuminuria > 300 mg, we also found a significant correlation (r = -0.45 ± 0.11, 95 % CI = -0.015 to -0.76, p = 0.3).
  
  
  CONCLUSIONS
  our results suggest that ABI < 0.9 is a useful marker to estimate microalbuminuria in diabetic normotensive patients.
authors.affiliation: Servicio de Medicina Interna, Hospital General Ticomán, Secretaría de Salud del Distrito Federal, México.
authors.forename: Luis Javier
authors.initials: LJ
authors.lastname: Pale-Torres
authors.forename: José Juan
authors.initials: JJ
authors.lastname: Lozano-Nuevo
authors.forename: Alberto Francisco
authors.initials: AF
authors.lastname: Rubio-Guerra
mesh_terms: D000419:Albuminuria / Q000150:complications* / Q000503:physiopathology*; D055109:Ankle Brachial Index; D001794:Blood Pressure; D048909:Diabetes Complications / Q000503:physiopathology*; D003920:Diabetes Mellitus / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged