Document Detail


Spatial accessibility and availability measures and statistical properties in the food environment.
MedLine Citation:
PMID:  21499528     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Spatial accessibility is of increasing interest in the health sciences. This paper addresses the statistical use of spatial accessibility and availability indices. These measures are evaluated via an extensive simulation based on cluster models for local food outlet density. We derived Monte Carlo critical values for several statistical tests based on the indices. In particular we are interested in the ability to make inferential comparisons between different study areas where indices of accessibility and availability are to be calculated. We derive tests of mean difference as well as tests for differences in Moran's I for spatial correlation for each of the accessibility and availability indices. We also apply these new statistical tests to a data example based on two counties in South Carolina for various accessibility and availability measures calculated for food outlets, stores, and restaurants.
Authors:
E Van Meter; A B Lawson; N Colabianchi; M Nichols; J Hibbert; D Porter; A D Liese
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural    
Journal Detail:
Title:  Spatial and spatio-temporal epidemiology     Volume:  2     ISSN:  1877-5853     ISO Abbreviation:  Spat Spatiotemporal Epidemiol     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2012-08-30     Completed Date:  2013-03-05     Revised Date:  2013-06-30    
Medline Journal Info:
Nlm Unique ID:  101516571     Medline TA:  Spat Spatiotemporal Epidemiol     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  35-47     Citation Subset:  IM    
Affiliation:
Division of Biostatistics and Epidemiology, College of Medicine, Medical University of South Carolina, Charleston, SC 29425, USA. EmilyVanMeter@gmail.com
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MeSH Terms
Descriptor/Qualifier:
Cluster Analysis
Computer Simulation
Food Industry / statistics & numerical data
Food Supply / statistics & numerical data*
Humans
Models, Statistical*
Monte Carlo Method
Restaurants / statistics & numerical data
South Carolina / epidemiology
Spatial Analysis*
Grant Support
ID/Acronym/Agency:
R21 CA132133-01/CA/NCI NIH HHS; R21CA132133/CA/NCI NIH HHS
Comments/Corrections

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