Table 1.
Convenience N = 24 |
Grocery N = 14 |
Supermarket N = 9 |
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Food Group: Item | n (%) with Item | Mean Priceb | n (%) with Item | Mean Priceb | n (%) with Item | Mean Priceb |
Fresh Fruits & Vegetables: Apples | 7 (29)† | $1.69 | 6 (43)‡ | $1.16 | 9 (100) | $1.09 |
Fresh Fruits & Vegetables: Oranges | 6 (25)† | $2.07 | 7 (50)‡ | $1.17 | 9 (100) | $0.81 |
Canned or Frozen Fruits / Vegetables: French | 10 (42) | $4.07 | 8 (57) | $3.68 | 9 (100) | $3.22 |
Fries | ||||||
Breads, Cereals & Other Grains: White Bread | 15 (63) | $1.99† | 10 (71) | $2.20‡ | 9 (100) | $1.16 |
Dairy: Whole Milk | 17 (71) | $4.18† | 8 (57) | $3.91‡ | 9 (100) | $3.00 |
Meats & Protein: Eggs | 18 (75) | $2.47 | 9 (64) | $2.03 | 8 (89) | $1.99 |
Fats & Oils: Margarine | 10 (42) | $1.77 | 8 (57) | $1.84 | 8 (89) | $1.23 |
Sugars& Sweets: Granulated Sugar | 12 (50) | $4.24† | 11 (79) | $4.13‡ | 9 (100) | $3.04 |
Based on the US Department of Agriculture Food Store Survey Instrument market basket;
Price of suggested size in survey, using data collected April and May 2009.
Statistical differences between groups noted using the following symbols:
convenience vs. grocery;
convenience vs. supermarket; and,
grocery vs. supermarket. Multiple comparisons were adjusted using the Bonferroni correction method; all statistical tests are significant at P < 0.006.