Choice architecture modifies fruit and vegetable purchasing in a university campus grocery store: time series modelling of a natural experiment

Table 1 Characteristics of the data and univariate analyses of sales data per intervention period

	Mean Weekly Sales by Quantity	95% CI of Mean Weekly Sales by Quantity	Mean Weekly Sales by Money Taken (£)	95% CI of Mean Weekly Sales by Money Taken	Results of ANOVA: p value
Total Sales	93,074	91,205.38, 94,941.87	140,515	137,767.5, 143,261.4
Total Sales, baseline	91,619	89,350.98, 93,887.44	140,605	137,145.4, 144,063.7	By Quantity p = 0.002 By Money p = 0.02
Total Sales, Intervention A	90,048	86,834.36, 93,261.56	134,812	130,113.7, 139,509.5
Total Sales, Intervention B	99,372	94,456.39, 104,287.06	146,015	138,695.8, 153,333.5
Fruit and Vegetables	5564	5412.71, 5714.431	6158	5983.119, 6333.611
Fruit and Vegetables, baseline	5790	5597.108, 5983.692	6349	6113.253, 6584.247	By Quantity p = 0.003 By Money p = 0.07
Fruit and Vegetable, Intervention A	5464	5152.136, 5776.564	6005	5655.987, 6353.674
Fruit and Vegetables, Intervention B	5152	4816.497, 5488.353	5884	5485.972, 6281.095
% Fruit and Vegetables	5.97	5.853301, 6.086766	4.37	4.280872, 4.451047
% Fruit and Vegetables, baseline	6.29	6.189831, 6.397652	4.50	4.388787, 4.601919	By Quantity p < 0.001 By Money P < 0.001
% Fruit and Vegetables, Intervention A	6.07	5.77514, 6.365298	4.45	4.238621, 4.655525
% Fruit and Vegetables, Intervention B	5.23	4.996114, 5.286894	3.99	3.863621, 4.123804

ISSN: 1471-2458