title: Distribution of abdominal adiposity and cardiovascular risk factors in yaquis indians from sonora, méxico.
abstract: BACKGROUND
  Studies on adiposity in indigenous populations from Mexico are scarce and there are not previous reports that examine the topography of abdominal fat depot and cardiovascular risk factors. Therefore, we determined the distribution of abdominal subcutaneous adipose tissue (SAT) and visceral adipose tissue (VAT), and analyzed its relationship with cardiovascular risk factors, in Yaqui Indians.
  
  
  METHODS
  In a cross-sectional population based study, a total of 82 apparently healthy Yaqui Indians (age 44 +/- 14 years and BMI 27.9 +/- 4.2 kg/m(2)) were randomly enrolled from Vicam, Bacum, and Potam, traditional Yaqui communities from Sonora, in northwest Mexico. Anthropometric parameters, single-slice computed tomography scans at the L(2)-L(3) intervertebral space, fasting glucose, insulin, and lipid profile were assessed.
  
  
  RESULTS
  A total of 49 (59.7%) individuals were obese, showing a predominant area of abdominal SAT (319.5 +/- 118.2 cm(2)) over abdominal VAT (134.6 +/- 58.4 cm(2)). Both abdominal VAT (r = 0.54, P = .001; and r = 0.36, P = .01) and SAT (r = 0.15, P = .001; r = 0.47, P = .01) were positively correlated with age and BMI. Abdominal VAT was positively correlated with insulin (r = 0.69, P = .0001) and triglycerides levels (r = 0.42, P = .01).
  
  
  CONCLUSIONS
  Among Yaquis Indians, obesity with predominant abdominal SAT is common and hyperinsulinemia is the most frequent cardiovascular risk factor. Abdominal VAT, but not abdominal SAT, was related to hyperinsulinemia and hypertriglyceridemia.
authors: Medical Research Unit in Clinical Epidemiology, High Speciality Medical Unit of the Mexican Social Security Institute (MSSI), Sonora, Mexico.
authors: Olga
authors: O
authors: Brito-Zurita
authors: Alberto
authors: A
authors: Domínguez-Banda
authors: Víctor
authors: V
authors: Ugalde-Aguirre
authors: Ana
authors: A
authors: Cortez-Valenzuela
authors: Rosa
authors: R
authors: Villanueva-Pérez
authors: Martha
authors: M
authors: Rodríguez-Morán
authors: Fernando
authors: F
authors: Guerrero-Romero