Geographic Clustering of Fast-Food Restaurants Around Secondary Schools in Hong Kong

Details

• Journal Article:
  Preventing Chronic Disease (PCD)
• Personal Author:
  Cheung, Jason Tsz Him ; Tang, Ka Chung ; Koh, Keumseok
• Description:
  Introduction
  
  Clustering of fast-food restaurants around schools facilitates fast-food consumption among students, which may cause obesity. We examined the prevalence of fast-food restaurants and identified the clusters of fast-food restaurants near secondary schools in Hong Kong.
  
  Methods
  
  We collected data of Western fast-food chain restaurants and 490 secondary schools in Hong Kong. Descriptive statistics and buffer analysis identified the prevalence of fast-food restaurants around the secondary schools within 400-m and 800-m buffers. Additional analyses compared schools stratified by the 3 main regions in Hong Kong, district-level population density, and median monthly household income. We used Getis-Ord GI* hot spot analysis to measure spatial clusters of fast-food restaurants around schools and Global Moran’s I to measure the spatial autocorrelation based on each school and the number of fast-food restaurants within the 400-m buffer.
  
  Results
  
  The average number of fast-food restaurants within 400 m and 800 m of a school was 2.0 and 6.3, respectively. Seven in 10 secondary schools had at least 1 fast-food restaurant within 400 m. The number of schools with no fast-food restaurants was higher in Hong Kong Island, considered the “rich region” in Hong Kong. Hot spots of clusters were significantly located in the high-density downtown areas. We observed significant spatial autocorrelation between fast-food restaurants and secondary schools in the areas with high density, low income, and high income (P < .001, z > 2.58).
  
  Conclusion
  
  Fast-food restaurants were substantially clustered around secondary schools in Hong Kong. Territory-wide studies about the health effect of fast-food clusters around schools on children and adolescents are warranted in Hong Kong.
  
  
• Subjects:
  Child Health Fast Foods Restaurants Schools
• Source:
  Prev Chronic Dis. 2021; 18
• ISSN:
  1545-1151
• Pubmed ID:
  34081576
• Pubmed Central ID:
  PMC8220948
• Document Type:
  Journal Article
• Place as Subject:
  Hong Kong
• Location:
  Asia
• Volume:
  18
• Collection(s):
  Preventing Chronic Disease
• Main Document Checksum:
  urn:sha-512:51e23373dd93b585ab6323989b2b6e681141c97695528e01686aa451aa31b9068d2e85e42f5573ea9cc08e82172700bcc7e9b492ae14b1209c8a3069e4f83ed6
• Download URL:
  https://stacks.cdc.gov/view/cdc/107761/cdc_107761_DS1.pdf
• File Type:
  [PDF - 610.87 KB ]