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ORIGINAL RESEARCH

Small Food Stores and Availability of Nutritious Foods: A Comparison of Database and In-Store Measures, Northern California, 2009

Store type County
Alameda Contra Costa Marin Sacramento San Francisco Santa Clara Total
Large grocery store 1 0 1 1 0 1 4
Small grocery store 2 5 4 4 0 2 17
Convenience store 11 5 0 4 21 6 47
Specialty store 7 1 1 5 1 4 19
Not found or not a food store 4 2 1 2 3 3 15
Total 25 13 7 16 25 16 102

Figure 1. Spatial distribution of food stores surveyed, by store type and county, San Francisco Bay Area and Sacramento, California, 2009.

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Distinguishing criteria Store type
Grocery Convenience Specialty
In-store survey (a)
Variety of vegetables ≥7 and area ≥179 sq ft 17 0 0
Variety of vegetables ≥7 and area <179 sq ft 2 3 4
Variety of vegetables <7 and nutritious food score ≥6 1 42 3
Variety of vegetables <7 and nutritious food score <6 1 2 12
Sociodemographic variables (b)
Population density ≥13,850 per sq mi 2 27 3
Population density <13,850 per sq mi and Asian population ≥40% 0 1 6
Population density <13,850 per sq mi, Asian population <40%, and white population <60% 8 15 3
Population density <13,850 per sq mi, Asian population <40%, white population ≥60%, and black population ≥20% 9 2 1
Population density <13,850 per sq mi, Asian population <40, white population ≥60%, and black population <20% 2 2 6

Figure 2. Classification and regression tree results based on a) in-store survey and b) sociodemographic variables.

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