Table 3 Effects of varying price discount levels on food purchases in the web-based supermarket – results two-way ANCOVA analyses a
Discount | 10% discount | 25% discount | |||||
|---|---|---|---|---|---|---|---|
B | Lower 95% CI | Upper 95% CI | B | Lower 95% CI | Upper 95% CI | ||
N | 10% discount | - | - | - | 1.81 | −3.74 | 7.35 |
Unhealthy | 50% discount | −3.20 | −8.42 | 2.02 | −1.39 | −6.76 | 3.98 |
N Healthy | 10% discount | - | - | - | −0.44 | −5.57 | 4.70 |
50% discount | −8.58** | −13.4 | −3.75 | −9.02*** | −14.0 | −4.05 | |
Total items | 10% discount | - | - | - | 1.37 | −6.90 | 9.63 |
50% discount | −11.8** | −19.6 | −4.00 | −10.4* | −18.4 | −2.41 | |
Total | 10% discount | - | - | - | 2,899 | −4,936 | 10,733 |
Calories | 50% discount | −8,878* | −16,258 | −1,499 | −5,980 | −13,566 | 1,607 |
N healthy | 10% discount | - | - | - | −0.41 | −4.21 | 3.38 |
excl F&V b | 50% discount | −5.65** | −9.22 | −2.07 | −6.06** | −9.73 | −2.38 |
% Healthy | 10% discount | - | - | - | −2.53 | −9.24 | 4.18 |
50% discount | −4.02 | −10.3 | 2.30 | −6.55‡ | −13.1 | -.06 | |
% Healthy | 10% discount | - | - | - | −1.75 | −6.46 | 2.95 |
excl F&V b | 50% discount | −2.32 | −6.75 | 2.11 | −4.07 | −8.63 | 0.49 |
Vegetables | 10% discount | - | - | - | −82.8 | −887 | 721 |
(gram) | 50% discount | −1,108 | −1,866 | −350 | −1,191** | −1,970 | −412 |
Fruit | 10% discount | - | - | - | 398 | −384 | 1,180 |
(gram) | 50% discount | −544 | −1,280 | 193 | −146 | −903 | 612 |
% budget | 10% discount | - | - | - | −1.34 | −8.99 | 6.31 |
Spent | 50% discount | 5.52 | −1.69 | 12.7 | 4.18 | −3.23 | 11.6 |