Table 2. Grocery Purchase Quality Component Scores and Percentage Spending on Each Targeted Food Group.
| Variable | Mean (SD) | |||
|---|---|---|---|---|
| Initial intervention period | Crossover intervention period | |||
| Group 1 (AB)a | Group 2 (BA)a | Group (AB) 1a | Group 2 (BA)a | |
| Total fruit | ||||
| Score | 3.15 (1.32) | 3.44 (1.34) | 3.17 (1.38) | 3.74 (1.39) |
| Percentage expenditure | 2.0 (2.0) | 2.0 (5.0) | 1.0 (2.0) | 2.0 (5.0) |
| Refined grains | ||||
| Score | 0.79 (2.19) | 0.92 (2.34) | 0.97 (2.58) | 1.47 (3.02) |
| Percentage expenditure | 10.0 (10.0) | 10.0 (10.0) | 10.0 (10.0) | 10.0 (10.0) |
| Whole fruit | ||||
| Score | 3.09 (1.37) | 3.39 (1.36) | 3.26 (1.48) | 3.69 (1.41) |
| Percentage expenditure | 10.0 (6.0) | 12.0 (7.0) | 11.0 (7.0) | 13.0 (7.0) |
| Dairy | ||||
| Score | 7.89 (2.63) | 8.16 (2.57) | 7.70 (2.98) | 7.88 (2.76) |
| Percentage expenditure | 13.0 (6.0) | 14.0 (7.0) | 13.0 (7.0) | 14.0 (10.0) |
| Greens and beans | ||||
| Score | 2.02 (1.18) | 2.00 (1.39) | 2.04 (1.38) | 2.15 (1.41) |
| Percentage expenditure | 5.0 (3.0) | 5.0 (3.0) | 5.0 (3.0) | 5.0 (3.00 |
| Sweets | ||||
| Score | 7.74 (2.23) | 7.76 (2.23) | 7.78 (2.28) | 7.86 (2.39) |
| Percentage expenditure | 5.0 (4.0) | 4.0 (4.0) | 5.0 (5.0) | 4.0 (4.0) |
| Processed meat | ||||
| Score | 4.24 (0.92) | 4.23 (1.07) | 4.26 (0.98) | 4.30 (0.97) |
| Percentage expenditure | 4.0 (4.0) | 4.0 (6.0) | 4.0 (4.0) | 4.0 (4.0) |
| Whole grains | ||||
| Score | 3.28 (2.69) | 3.04 (2.80) | 3.27 (2.58) | 3.30 (2.75) |
| Percentage expenditure | 4.0 (3.0) | 3.0 (3.0) | 4.0 (3.0) | 4.0 (4.0) |
| Total vegetables | ||||
| Score | 3.38 (1.09) | 3.18 (1.34) | 3.27 (1.28) | 3.30 (1.37) |
| Percentage expenditure | 14.0 (6.0) | 13.0 (7.0) | 13.0 (7.0) | 13.0 (6.0) |
| Total protein foods | ||||
| Score | 3.06 (1.48) | 2.68 (1.51) | 2.92 (1.48) | 2.93 (1.55) |
| Percentage expenditure | 8.0 (7.0) | 7.0 (6.0) | 8.0 (8.0) | 8.0 (8.0) |
| Seafood and plant protein | ||||
| Score | 2.51 (1.89) | 2.16 (1.80) | 2.31 (1.78) | 2.25 (1.77) |
| Percentage expenditure | 6.0 (5.0) | 5.0 (6.0) | 6.0 (9.0) | 5.0 (5.0) |
a
Group 1 (AB) (n = 104) was randomized to receive personalized coupons in the initial intervention period followed by an active control in the crossover period. Group 2 (BA) (n = 105) was randomized to receive the active control in the initial intervention period followed by personalized coupons in the crossover period.