title: Temporal trends in BMI in Argentina by socio-economic position and province-level economic development, 2005-2009.
abstract: OBJECTIVE
  We investigated temporal trends in BMI, and assessed hypothesized predictors of trends including socio-economic position (SEP) and province-level economic development, in Argentina.
  
  
  METHODS
  Using multivariable linear regression, we evaluated cross-sectional patterning and temporal trends in BMI and examined heterogeneity in these associations by SEP and province-level economic development with nationally representative samples from Argentina in 2005 and 2009. We calculated mean annual changes in BMI for men and women to assess secular trends.
  
  
  RESULTS
  Women, but not men, exhibited a strong cross-sectional inverse association between SEP and BMI, with the lowest-SEP women having an average BMI 2.55 kg/m(2) greater than the highest-SEP women. Analysis of trends revealed a mean annual increase in BMI of 0.19 kg/m(2) and 0.15 kg/m(2) for women and men, respectively, with slightly greater increases occurring in provinces with greater economic growth. No significant heterogeneity in trends existed by individual SEP.
  
  
  CONCLUSIONS
  BMI is increasing rapidly over time in Argentina irrespective of various sociodemographic characteristics. Higher BMI remains more common in women of lower SEP compared with those of higher SEP.
authors.affiliation: 1Department of Epidemiology,University of Michigan School of Public Health,2675 SPH I,1415 Washington Heights,Ann Arbor,MI 48109,USA.
authors.forename: Paul J
authors.initials: PJ
authors.lastname: Christine
authors.affiliation: 2Drexel University School of Public Health,Philadelphia,PA,USA.
authors.forename: Ana V
authors.initials: AV
authors.lastname: Diez Roux
authors.affiliation: 1Department of Epidemiology,University of Michigan School of Public Health,2675 SPH I,1415 Washington Heights,Ann Arbor,MI 48109,USA.
authors.forename: Jeffrey J
authors.initials: JJ
authors.lastname: Wing
authors.affiliation: 3Departamento de Salud Comunitaria,Universidad Nacional de Lanús,Lanús,Argentina.
authors.forename: Marcio
authors.initials: M
authors.lastname: Alazraqui
authors.affiliation: 3Departamento de Salud Comunitaria,Universidad Nacional de Lanús,Lanús,Argentina.
authors.forename: Hugo
authors.initials: H
authors.lastname: Spinelli
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001118:Argentina / Q000453:epidemiology; D015992:Body Mass Index; D003430:Cross-Sectional Studies; D057217:Economic Development; D005260:Female; D019456:Health Transition; D006801:Humans; D008297:Male; D008875:Middle Aged; D009749:Nutrition Surveys; D009765:Obesity / Q000191:economics / Q000453:epidemiology* / Q000208:ethnology / Q000517:prevention & control; D050177:Overweight / Q000191:economics / Q000453:epidemiology* / Q000208:ethnology / Q000517:prevention & control; D015995:Prevalence; D012737:Sex Factors; D012959:Socioeconomic Factors; D062211:Spatio-Temporal Analysis; D055815:Young Adult
keywords: Adults