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Where do people purchase food? A novel approach to investigating food purchasing locations

Thornton, Lukar E., Crawford, David A., Lamb, Karen E. and Ball, Kylie 2017, Where do people purchase food? A novel approach to investigating food purchasing locations, International journal of health geographics, vol. 16, no. 1, pp. 1-13, doi: 10.1186/s12942-017-0082-z.

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Title Where do people purchase food? A novel approach to investigating food purchasing locations
Author(s) Thornton, Lukar E.ORCID iD for Thornton, Lukar E. orcid.org/0000-0001-8759-8671
Crawford, David A.ORCID iD for Crawford, David A. orcid.org/0000-0002-2467-7556
Lamb, Karen E.ORCID iD for Lamb, Karen E. orcid.org/0000-0001-9782-8450
Ball, KylieORCID iD for Ball, Kylie orcid.org/0000-0003-2893-8415
Journal name International journal of health geographics
Volume number 16
Issue number 1
Article ID 9
Start page 1
End page 13
Total pages 13
Publisher BioMed Central
Place of publication London, Eng.
Publication date 2017
ISSN 1476-072X
Keyword(s) built environment
food environment
food purchasing
geographic information system (GIS)
neighbourhood
Summary BACKGROUND: Studies exploring associations between food environments and food purchasing behaviours have been limited by the absence of data on where food purchases occur. Determining where food purchases occur relative to home and how these locations differ by individual, neighbourhood and trip characteristics is an important step to better understanding the association between food environments and food behaviours. METHODS: Conducted in Melbourne, Australia, this study recruited participants within sixteen neighbourhoods that were selected based on their socioeconomic characteristics and proximity to supermarkets. The survey material contained a short questionnaire on individual and household characteristics and a food purchasing diary. Participants were asked to record details related to all food purchases made over a 2-week period including food store address. Fifty-six participants recorded a total of 952 food purchases of which 893 were considered valid for analysis. Households and food purchase locations were geocoded and the network distance between these calculated. Linear mixed models were used to determine associations between individual, neighbourhood, and trip characteristics and distance to each food purchase location from home. Additional analysis was conducted limiting the outcome to: (a) purchase made when home was the prior origin (n. 484); and (b) purchases made within supermarkets (n. 317). RESULTS: Food purchases occurred a median distance of 3.6 km (IQR 1.8, 7.2) from participants' homes. This distance was similar when home was reported as the origin (median 3.4 km; IQR 1.6, 6.4) whilst it was shorter for purchases made within supermarkets (median 2.8 km; IQR 1.6, 5.6). For all purchases, the reported food purchase location was further from home amongst the youngest age group (compared to the oldest age group), when workplace was the origin of the food purchase trip (compared to home), and on weekends (compared to weekdays). Differences were also observed by neighbourhood characteristics. CONCLUSIONS: This study has demonstrated that many food purchases occur outside what is traditionally considered the residential neighbourhood food environment. To better understand the role of food environments on food purchasing behaviours, further work is needed to develop more appropriate food environment exposure measures.
Language eng
DOI 10.1186/s12942-017-0082-z
Field of Research 111199 Nutrition and Dietetics not elsewhere classified
1604 Human Geography
Socio Economic Objective 920411 Nutrition
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2017, The Authors
Free to Read? Yes
Use Rights Creative Commons Attribution licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30091991

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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.