title: Thinness, overweight and obesity in indigenous youth in Oaxaca, 1970 and 2007.
abstract: OBJECTIVE
  To evaluate change in body mass index (BMI) and weight status of indigenous youth in Oaxaca between the 1970s and 2007.
  
  
  METHODS
  Heights and weights were measured in cross-sectional samples of school children 6-14 years in the 1970s (2 897) and 2007 (4 305); BMI was calculated. International Obesity Task Force cutoffs for weight status were used. BMI and prevalence of severe and moderate thinness, overweight and obesity were compared by year.
  
  
  RESULTS
  BMI increased significantly across time. Primary change in weight status occurred in overweight, 1970s, <2%; 2007, 7 to 12%. Little change occurred in thinness (<2%) and obesity (≤ 1%) in both surveys, except in children 6-9 years (obesity=4% in 2007).
  
  
  CONCLUSIONS
  BMI and prevalence of overweight increased across all ages from the 1970s to 2007, but children 6-9 years appeared to be more at risk for obesity than youth 10-14 years. Prevalence of thinness was unchanged.
authors.affiliation: Department of Kinesiology and Health Education, University of Texas, Austin, Tx, USA.
authors.forename: Robert M
authors.initials: RM
authors.lastname: Malina
authors.forename: María Eugenia
authors.initials: ME
authors.lastname: Peña-Reyes
authors.forename: Guillermo
authors.initials: G
authors.lastname: Bali-Chávez
authors.forename: Bertis B
authors.initials: BB
authors.lastname: Little
mesh_terms: D000293:Adolescent; D015992:Body Mass Index; D002648:Child; D005260:Female; D006801:Humans; D007198:Indians, North American; D008297:Male; D008800:Mexico / Q000453:epidemiology; D009765:Obesity / Q000453:epidemiology*; D050177:Overweight / Q000453:epidemiology*; D015995:Prevalence; D013851:Thinness / Q000453:epidemiology*; D013997:Time Factors