title: Associations between parental limits, school vending machine purchases, and soft drink consumption among Kentucky middle school students.
abstract: OBJECTIVE
  To examine associations between parental limits on soft drinks and purchasing soft drinks from school vending machines and consuming soft drinks among middle school students.
  
  
  METHODS
  Secondary analysis of cross-sectional data from the middle school Youth Risk Behavior Survey.
  
  
  METHODS
  Eight public middle schools in central Kentucky.
  
  
  METHODS
  All sixth- through eighth-grade students in 7 schools and all eighth-grade students in 1 school (n = 4,049).
  
  
  METHODS
  Self-reported parental limits on soft drink intake, school vending machine soft drink purchases, soft drink consumption, and control variables.
  
  
  METHODS
  Chi-square and binary logistic regression analyses.
  
  
  RESULTS
  Compared to students with no parental limits on soft drink consumption, students with the strictest limits were less likely to purchase soft drinks from school vending machines and consume soft drinks; conversely, students with minor parental limitations were more likely to consume soft drinks. The odds of consuming soft drinks were nearly 4 times greater when students purchased soft drinks from school vending machines than when they did not.
  
  
  CONCLUSIONS
  Further research may enhance understanding of the influence of varying degrees of parental limitations. Efforts to reduce children's soft drink consumption may be augmented by policies limiting soft drink purchases in schools.
authors.affiliation: Department of Health Science, College of Human Environmental Sciences, The University of Alabama, Tuscaloosa, AL 35487-0311, USA. jnickelson@ches.ua.edu
authors.forename: Jen
authors.initials: J
authors.lastname: Nickelson
authors.forename: Mary G
authors.initials: MG
authors.lastname: Roseman
authors.forename: Melinda S
authors.initials: MS
authors.lastname: Forthofer
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior; D017195:Adolescent Nutritional Physiological Phenomena; D001294:Attitude to Health; D002253:Carbonated Beverages / Q000706:statistics & numerical data* / Q000600:supply & distribution; D016009:Chi-Square Distribution; D003430:Cross-Sectional Studies; D005260:Female; D005509:Food Dispensers, Automatic / Q000706:statistics & numerical data*; D015438:Health Behavior; D006801:Humans; D007629:Kentucky; D016015:Logistic Models; D008297:Male; D010287:Parent-Child Relations; D010290:Parents / Q000523:psychology*; D012574:Schools; D013334:Students / Q000523:psychology*