期刊
HEALTH & PLACE
卷 18, 期 6, 页码 1341-1347出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.healthplace.2012.06.016
关键词
Residence characteristics; Validity; Reliability; Food; Geography; Environment
资金
- National Heart, Lung, and Blood Institute at the National Institutes of Health [2R01 HL071759]
Access to healthy foods has received increasing attention due to growing prevalence of obesity and diet-related health conditions yet there are major obstacles in characterizing the local food environment. This study developed a method to retrospectively characterize supermarkets for a single historic year, 2005, in 19 counties in 6 states in the USA using a supermarket chain-name list and two business databases. Data preparation, merging, overlaps, added-value amongst various approaches and differences by census tract area-level socio-demographic characteristics are described. Agreement between two food store databases was modest: 63%. Only 55% of the final list of supermarkets were identified by a single business database and selection criteria that included industry classification codes and sales revenue >=$2 million. The added-value of using a supermarket chain-name list and second business database was identification of an additional 14% and 30% of supermarkets, respectively. These methods are particularly useful to retrospectively characterize access to supermarkets during a historic period and when field observations are not feasible and business databases are used. (C) 2012 Elsevier Ltd. All rights reserved.
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