Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8693581 | Preventive Medicine | 2018 | 6 Pages |
Abstract
This study examined cross-sectional and prospective associations between typologies of neighbourhood food environment and dietary patterns among 10-12â¯year-old children. Baseline data were collected in 2003 and follow-up data in 2006 from children in Melbourne or Geelong. Parents completed a food frequency questionnaire at both time points. 'Healthful' and 'energy-dense' dietary pattern scores were computed. A Geographic Information System was used to determine the presence or absence of food outlets (cafés/restaurant; fast food; supermarkets/grocery stores; convenience store; greengrocer; and butcher, seafood or poultry retailer) within an 800â¯m road network buffer of home. Three typologies were identified: 1-variety of food outlets, including those selling core/fresh foods (nâ¯=â¯96); 2-café/restaurant and convenience (nâ¯=â¯160); 3-few types of outlets (nâ¯=â¯208). Latent class analysis was used to identify underlying unobservable typologies of neighbourhood food outlet availability. Linear mixed models were fitted to determine cross-sectional (nâ¯=â¯439) and longitudinal (nâ¯=â¯173) associations between the three identified neighbourhood typologies and each (log-transformed) dietary pattern, accounting for clustering within families and schools. There was little evidence of cross-sectional associations. The longitudinal analyses showed that compared to those with a variety of food outlets, those with few types had 25% lower scores for the healthful dietary pattern (pâ¯<â¯0.05) three years later. For optimal dietary patterns, availability of a variety of food outlets close to home, particularly those where core/fresh foods are available, may be important.
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Authors
Anna Timperio, David Crawford, Rebecca M. Leech, Karen E. Lamb, Kylie Ball,