Journal of Environmental and Public Health / 2012 / Article / Tab 1

Research Article

Measuring the Food Environment: A Systematic Technique for Characterizing Food Stores Using Display Counts

Table 1

Mean number of separate displays, by food group and store type, New Orleans, 2007-2008.

SupermarketMidsizedSmall storeConven1Drug storeGenl merch2
Food group ( 𝑛 = 8 )( 𝑛 = 8 )( 𝑛 = 6 3 )( 𝑛 = 6 9 ) ( 𝑛 = 1 6 )( 𝑛 = 8 )
MeanSDMeanSDMeanSDMeanSDMeanSDMeanSD

All fruits and vegetables320.1a9.99.1b6.55.8c3.92.7d2.63.1d2.75.1cd4.4
 Fresh fruits and vegetables12.86.83.82.72.42.10.91.30.10.51.13.2
 Fresh fruits6.12.22.01.81.21.10.50.80.10.50.51.4
 Fresh vegetables6.64.91.81.01.21.20.40.80.00.00.61.8
 Can/froz fruits and vegetables7.43.95.44.23.42.31.81.62.92.44.02.6
 Canned fruits2.51.82.42.51.41.00.80.81.92.02.00.8
 Canned vegetables3.52.52.11.71.71.30.90.81.00.62.02.3
 Frozen vegetables1.40.50.90.40.40.60.10.30.00.00.00.0

All energy-dense snack foods379.8a51.321.8bc5.717.3c6.116.8c7.324.5b10.729.3b12.2
 Candy18.313.05.42.63.11.62.91.68.85.19.33.5
 Salty snack foods22.914.16.53.34.32.24.42.65.42.97.44.7
 Cookies and crackers14.411.03.32.13.21.52.91.74.42.45.01.9
 Doughnuts and pastries12.58.82.81.52.41.42.71.61.81.43.01.6
 Carbonated beverages11.88.13.91.74.32.03.92.04.21.64.62.4

1, 2“Conven” refers to convenience stores, and “Genl merch” refers to general merchandise stores.
3Analysis of variance (ANOVA) was used to study the difference by store type in the total number of displays of fruits and vegetables. The overall ANOVA was significant ( 𝑃 < 0 . 0 5 ). The LSD test was used post hoc to test the difference between pairs of stores. Store types sharing a common superscript (e.g., convenience, drug, and general merchandise stores) were not significantly different from each other on number of displays of this food group. A separate ANOVA was done and found to be significant ( 𝑃 < 0 . 0 5 ) for differences in energy-dense snack foods by store type. Within each store type, paired sample t-tests showed significantly ( 𝑃 < 0 . 0 5 ) more energy-dense snack displays than fruit and vegetable displays.

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