Journal article
Short-term Temporal Stability in Observed Retail Food Characteristics
Journal of nutrition education and behavior, Vol.42(1), pp.26-32
2010
DOI: 10.1016/j.jneb.2009.01.005
PMCID: PMC2913966
PMID: 20129186
Abstract
Use of direct observation to characterize neighborhood retail food environments is increasing, but to date most studies have relied on a single observation. If food availability, prices, and quality vary over short time periods, repeated measures may be needed to portray these food characteristics. This study evaluated short-term (2-week), within-season temporal stability in retail food availability, prices, and quality.
In-person observations of retail food stores at 2 time points, 2 weeks apart.
Southwest Chicago, IL.
157 food stores.
Availability and prices of food items selected from the following food groups: fruit, vegetables, grains, meats and beans, and dairy, as well as fresh produce quality.
Temporal stability was tested for availability using a McNemar test and for price and quality using a Wilcoxon signed-rank test.
Measures of food availability and prices as well as fresh produce quality at stores were generally stable at the 2 time points.
This study suggests that a single observation may be sufficient to accurately characterize within-season food availability, food prices, and fresh produce quality.
Details
- Title: Subtitle
- Short-term Temporal Stability in Observed Retail Food Characteristics
- Creators
- Shannon N. Zenk - University of Illinois at ChicagoDiana S. Grigsby-Toussaint - University of Illinois Urbana-ChampaignSusan J. Curry - University of IowaMichael Berbaum - University of Illinois at ChicagoLinda Schneider - University of Illinois at Chicago
- Resource Type
- Journal article
- Publication Details
- Journal of nutrition education and behavior, Vol.42(1), pp.26-32
- Publisher
- Elsevier Inc
- DOI
- 10.1016/j.jneb.2009.01.005
- PMID
- 20129186
- PMCID
- PMC2913966
- ISSN
- 1499-4046
- eISSN
- 1878-2620
- Language
- English
- Date published
- 2010
- Academic Unit
- Health Management and Policy; Community and Behavioral Health
- Record Identifier
- 9984366286702771
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