title: Social ecological predictors of the transition to overweight in youth: results from the Teens Eating for Energy and Nutrition at Schools (TEENS) study.
abstract: OBJECTIVE
  To explore the social ecological predictors of the transition to overweight in youth, as shown in results from the Teens Eating for Energy and Nutrition at Schools study.
  
  
  METHODS
  Longitudinal data from a school-based intervention trial.
  
  
  METHODS
  Adolescents who were involved in the Teens Eating for Energy and Nutrition at Schools intervention study who reported a healthful weight at baseline in 1998 (n=1,728).
  
  
  METHODS
  Transition to overweight status (body mass index > or =85th percentile) at follow-up in eighth grade.
  
  
  METHODS
  Generalized linear mixed model regression.
  
  
  RESULTS
  Factors in the social, environmental, individual, and behavioral domains had significant unadjusted relationships with a transition to overweight status. In the multivariate analysis, adolescents who perceived themselves to be overweight at baseline were 2.3 times more likely to be overweight at follow-up compared to those with a normal weight self-perception. Compared to nondieters, current dieters were 2.6 times more likely to be overweight at follow-up, and boys were nearly three times more likely to transition to overweight status at follow-up compared with girls.
  
  
  CONCLUSIONS
  Individual factors, primarily related to a self-perception of being overweight, were the strongest predictors of transitioning to overweight as adolescents progressed from seventh through eighth grade. A better understanding of the relationship between weight concern and transition to overweight is needed.
authors.affiliation: Division of Epidemiology and Community Health, University of Minnesota School of Public Health, Minneapolis, MN 55454, USA. klei0289@umn.edu <klei0289@umn.edu>
authors.forename: Elizabeth G
authors.initials: EG
authors.lastname: Klein
authors.forename: Leslie A
authors.initials: LA
authors.lastname: Lytle
authors.forename: Vincent
authors.initials: V
authors.lastname: Chen
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior; D017195:Adolescent Nutritional Physiological Phenomena; D015992:Body Mass Index; D001835:Body Weight / Q000502:physiology; D002149:Energy Intake / Q000502:physiology; D004777:Environment; D001068:Feeding and Eating Disorders / Q000453:epidemiology / Q000209:etiology / Q000523:psychology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D015999:Multivariate Analysis; D050177:Overweight / Q000453:epidemiology* / Q000209:etiology / Q000523:psychology*; D012307:Risk Factors; D012649:Self Concept; D012737:Sex Factors; D012919:Social Behavior