title: Multiple sociodemographic and socioenvironmental characteristics are correlated with major patterns of dietary intake in adolescents.
abstract: BACKGROUND
  Few studies have used dietary pattern analysis, a useful method to summarize dietary intake, in adolescents.
  
  
  OBJECTIVE
  Examine sociodemographic and socioenvironmental correlates of habitual dietary patterns.
  
  
  METHODS
  Data for this cross-sectional/prospective analysis were drawn from Project EAT (Eating Among Teens), a population-based study.
  
  
  METHODS
  Project EAT-I (Time 1), collected data on 4,746 adolescents in 1998-1999. Project EAT-II (Time 2) resurveyed 53% (n=2,516) of the original cohort 5 years later in 2003-2004. Dietary intake was assessed using the Youth/Adolescent Food Frequency Questionnaire. MAIN OUTCOME MEASURES/STATISTICAL ANALYSIS PERFORMED: Factor analysis identified four dietary patterns at Time 1 (vegetable, fruit, starchy food, and snack food) and Time 2 (vegetable and fruit, fast food, starchy food, and snack food). Linear regression was used to examine the relationship of Time 1 socioeconomic status and race (mutually adjusted) on factor scores for each dietary pattern, and then of Time 1 socioenvironmental characteristics (adjusted for socioeconomic status and race) on these factor scores.
  
  
  RESULTS
  In prospective analyses, socioeconomic status, family meal frequency, and home availability of healthy food were positively associated with the vegetable and fruit and starchy food patterns and inversely associated with the fast food pattern. Home availability of unhealthy food was inversely associated with the vegetable and fruit and starchy food patterns and positively associated with the fast food and snack food patterns. Maternal, paternal, and peer support for healthy eating were positively associated with the vegetable and fruit pattern and inversely associated with the fast food pattern. Similar associations were seen in cross-sectional analyses.
  
  
  CONCLUSIONS
  Multiple correlates of dietary patterns were identified. Health professionals should target these factors to improve the dietary quality of habitual eating practices in adolescents by encouraging parents to decrease home availability of unhealthy food while increasing availability of healthy food, family meal frequency, and parental support for healthy eating.
authors.affiliation: Minnesota Department of Health, St Paul, MN, USA. cutle007@umn.edu
authors.forename: Gretchen J
authors.initials: GJ
authors.lastname: Cutler
authors.forename: Andrew
authors.initials: A
authors.lastname: Flood
authors.forename: Peter
authors.initials: P
authors.lastname: Hannan
authors.forename: Dianne
authors.initials: D
authors.lastname: Neumark-Sztainer
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior; D017195:Adolescent Nutritional Physiological Phenomena; D002648:Child; D015331:Cohort Studies; D003430:Cross-Sectional Studies; D004032:Diet / Q000592:standards / Q000706:statistics & numerical data*; D004034:Diet Surveys; D005006:Ethnicity / Q000523:psychology; D005163:Factor Analysis, Statistical; D005191:Family Characteristics; D005247:Feeding Behavior / Q000523:psychology*; D005260:Female; D005523:Food Supply; D015438:Health Behavior; D006801:Humans; D016014:Linear Models; D008297:Male; D010287:Parent-Child Relations; D010290:Parents / Q000523:psychology; D011446:Prospective Studies; D012923:Social Class; D012931:Social Environment; D012944:Social Support; D012959:Socioeconomic Factors; D011795:Surveys and Questionnaires