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

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

  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