Total mean (SE) | Incentive mean (SE) 95% CIa | Restriction mean (SE) 95% CI | Incentive Plus Restriction mean (SE) 95% CI | Control mean (SE) 95% CI | p | |
---|---|---|---|---|---|---|
N | 252 | 66 | 60 | 63 | 63 | |
Dollars spent (average per week) | ||||||
Groceries | ||||||
Baseline | 68.5 (3.4) | 72.7 (6.7) 59.5, 85.8 | 66.1 (7.0) 52.4, 79.9 | 64.9 (6.8) 51.5, 78.3 | 70.1 (6.8) 56.6, 83.5 | |
Follow up | 101.8 (2.8) | 104.2 (5.5) 93.4, 115.0 | 94.6 (5.8) 83.2, 105.9 | 102.6 (5.6) 91.5, 113.7 | 105.3 (5.6) 94.2, 116.4 | |
Changeb | 33.3 (2.4) | 31.5 (4.7) 22.2, 40.9 | 28.5 (5.0) 18.7, 38.3 | 37.7 (4.8) 28.2, 47.3 | 35.2 (4.8) 25.7, 44.8 | .56 |
Restaurant | ||||||
Baseline | 25.1 (1.7) | 29.6 (3.4) 22.9, 36.3 | 23.7 (3.6) 16.7, 30.8 | 24.7 (3.5) 17.8, 31.6 | 22.0 (3.5) 15.2, 28.9 | |
Follow up | 18.6 (1.5) | 23.2 (2.9) 17.5, 28.9 | 13.9 (3.0) 7.9, 19.9 | 19.3 (3.0) 13.4, 25.1 | 17.6 (3.0) 11.7, 23.4 | |
Change | −6.5 (1.1) | −6.4 (2.2) −10.8, −2.1 | −9.8 (2.3) −14.4, −5.3 | −5.4 (2.3) −9.9, −0.98 | −4.5 (2.3) −8.9, −0.03 | .38 |
Fruit | ||||||
Baseline | 4.0 (0.3) | 3.6 (0.6) 2.5, 4.8 | 4.3 (0.6) 3.1, 5.6 | 3.7 (0.6) 2.5, 4.9 | 4.2 (0.6) 3.0, 5.4 | |
Follow up | 7.0 (0.4) | 7.0 (0.8) 5.4, 8.6 | 6.0 (0.9) 4.3, 7.7 | 8.5 (0.9) 6.8, 10.1 | 6.4 (0.9) 4.7, 8.0 | |
Changec | 3.0 (0.3) | 3.3 (0.6) 2.1, 4.6 | 1.7 (0.7) 0.34, 3.0 | 4.8 (0.7) 3.5, 6.0 | 2.1 (0.7) 0.86, 3.4 | .01 |
Vegetables | ||||||
Baseline | 4.2 (0.3) | 3.9 (0.6) 2.6, 5.1 | 4.6 (0.7) 3.3, 5.9 | 3.7 (0.7) 2.4, 5.0 | 4.5 (0.7) 3.3, 5.8 | |
Follow up | 7.1 (0.4) | 6.7 (0.7) 5.4, 8.1 | 6.9 (0.7) 5.4, 8.3 | 7.7 (0.7) 6.3, 9.1 | 6.9 (0.7) 5.5, 8.4 | |
Change | 2.9 (0.3) | 2.9 (0.5) 1.9, 3.9 | 2.3 (0.6) 1.2, 3.4 | 4.0 (0.5) 2.9, 5.1 | 2.4 (0.5) 1.3, 3.5 | .10 |
Sugar Sweetened Beverages | ||||||
Baseline | 3.4 (0.3) | 3.9 (0.5) 2.9, 5.0 | 3.7 (0.6) 2.6, 4.8 | 3.1 (0.5) 2.0 4.2 | 3.0 (0.5) 1.9, 4.1 | |
Follow up | 3.3 (0.2) | 4.2 (0.4) 3.3, 5,0 | 2.3 (0.4) 1.4, 3.2 | 2.3 (0.4) 1.5, 3.2 | 4.5 (0.4) 3.6, 5.3 | |
Changed | −0.1 (0.2) | 0.2 (0.4) −0.55, 1.03 | −1.4 (0.4) −2.2, −0.59 | −0.8 (0.4) −1.6, 0.01 | 1.5 (0.4) 0.69, 2.3 | .0001 |
Sweet Baked Goods | ||||||
Baseline | 2.4 (0.2) | 2.8 (0.4) 2.0, 3.6 | 2.3 (0.4) 1.5, 3.1 | 2.0 (0.4) 1.2, 2.8 | 2.5 (0.4) 1.7, 3.3 | |
Follow up | 2.6 (0.2) | 3.6 (0.3) 3.9, 4.2 | 1.6 (0.3) 0.89, 2.2 | 1.9 (0.3) 1.2, 2.5 | 3.3 (0.3) 2.7, 4.0 | |
Changee | 0.2 (0.2) | 0.8 (0.3) 0.10, 1.5 | −0.7 (0.4) −1.4, 0.01 | −0.1 (0.4) −0.78, 0.61 | 0.8 (0.4) 0.13, 1.5 | .01 |
Candy | ||||||
Baseline | 1.4 (0.1) | 1.5 (0.2) 1.0, 2.0 | 1.3 (0.3) 0.78, 1.8 | 1.2 (0.3) 0.69, 1.7 | 1.7 (0.3) 1.3, 2.2 | |
Follow up | 1.5 (0.1) | 1.7 (0.2) 1.3, 2.2 | 1.0 (0.3) 0.52, 1.5 | 1.3 (0.2) 0.78, 1.7 | 2.1 (0.2) 1.6, 2.6 | |
Change | 0.1 (0.1) | 0.2 (0.2) −0.24, 0.72 | −0.3 (0.3) −0.76, 0.23 | 0.1 (0.3) −0.41, 0.57 | 0.3 (0.3) −0.16, 0.81 | .36 |