Supermarket access, transport mode and BMI: The potential for urban design and planning policy across socio-economic areas

Maureen Murphy*, Mohammad Javad Koohsari, Hannah Badland, Billie Giles-Corti

*この研究の対応する著者

研究成果: Article査読

16 被引用数 (Scopus)

抄録

Objective To investigate dietary intake, BMI and supermarket access at varying geographic scales and transport modes across areas of socio-economic disadvantage, and to evaluate the implementation of an urban planning policy that provides guidance on spatial access to supermarkets. Design Cross-sectional study used generalised estimating equations to investigate associations between supermarket density and proximity, vegetable and fruit intake and BMI at five geographic scales representing distances people travel to purchase food by varying transport modes. A stratified analysis by area-level disadvantage was conducted to detect optimal distances to supermarkets across socio-economic areas. Spatial distribution of supermarket and transport access was analysed using a geographic information system. Setting Melbourne, Australia. Subjects Adults (n 3128) from twelve local government areas (LGA) across Melbourne. Results Supermarket access was protective of BMI for participants in high disadvantaged areas within 800 m (P=0·040) and 1000 m (P=0·032) road network buffers around the household but not for participants in less disadvantaged areas. In urban growth area LGA, only 26 % of dwellings were within 1 km of a supermarket, far less than 80-90 % of dwellings suggested in the local urban planning policy. Low public transport access compounded disadvantage. Conclusions Rapid urbanisation is a global health challenge linked to increases in dietary risk factors and BMI. Our findings highlight the importance of identifying the most appropriate geographic scale to inform urban planning policy for optimal health outcomes across socio-economic strata. Urban planning policy implementation in disadvantaged areas within cities has potential for reducing health inequities.

本文言語English
ページ(範囲)3304-3315
ページ数12
ジャーナルPublic Health Nutrition
20
18
DOI
出版ステータスPublished - 2017 12 1

ASJC Scopus subject areas

  • 医学(その他)
  • 栄養および糖尿病
  • 公衆衛生学、環境および労働衛生

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