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Titre : | Evidence That Changes in Community Food Environments Lead to Changes in Childrens Weight: Results from a Longitudinal Prospective Cohort Study (2021) |
Auteurs : | Punam Ohri-Vachaspati ; Francesco Acciai ; Kristen Lloyd ; David Tulloch ; Robin S. De Weese ; Derek De Lia ; Michael Todd ; Michael J. Yedidia |
Type de document : | Article |
Dans : | Journal of the academy of nutrition and dietetics (Vol. 121, n° 3, March 2021) |
Article en page(s) : | p. 419-434.e9 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Commerce ; Enfant (6-12 ans) ; Études de cohortes ; Etudes longitudinales ; Indice de masse corporelle ; Magasin ; Obésité ; Obésité pédiatrique |
Résumé : |
Background
Strategies to improve the community food environment have been recommended for addressing childhood obesity, but evidence substantiating their effectiveness is limited. Objective Our aim was to examine the impact of changes in availability of key features of the community food environment, such as supermarkets, small grocery stores, convenience stores, upgraded convenience stores, pharmacies, and limited service restaurants, on changes in childrens body mass index z scores (zBMIs). Design We conducted a longitudinal cohort study. Participants/setting Two cohorts of 3- to 15-year-old children living in 4 low-income New Jersey cities were followed during 2- to 5-year periods from 2009 through 2017. Data on weight status were collected at 2 time points (T1 and T2) from each cohort; data on food outlets in the 4 cities and within a 1-mile buffer around each city were collected multiple times between T1 and T2. Main outcome measures We measured change in childrens zBMIs between T1 and T2. Statistical analysis Changes in the food environment were conceptualized as exposure to changes in counts of food outlets across varying proximities (0.25 mile, 0.5 mile, and 1.0 mile) around a childs home, over different lengths of time a child was exposed to these changes before T2 (12 months, 18 months, and 24 months). Multivariate models examined patterns in relationships between changes in zBMI and changes in the food environment. Results Increased zBMIs were observed in children with greater exposure to convenience stores over time, with a consistent pattern of significant associations across varying proximities and lengths of exposure. For example, exposure to an additional convenience store over 24 months within 1 mile of a childs home resulted in 11.7% higher odds (P = 0.007) of a child being in a higher zBMI change category at T2. Lower zBMIs were observed in children with increased exposure to small grocery stores selling an array of healthy items, with exposure to an additional small grocery store within 1 mile over 24 months, resulting in 37.3% lower odds (P Conclusions Increased availability of small grocery stores near childrens homes may improve childrens weight status, whereas increased availability of convenience stores is likely to be detrimental. |
Disponible en ligne : | Oui |
En ligne : | https://login.ezproxy.vinci.be/login?url=https://www.sciencedirect.com/science/article/pii/S2212267220313873 |