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Table 5 Prices of initially selected items, swaps offered and price difference for those offered swaps only

From: Strategies to reduce the energy content of foods pre-ordered for lunch in the workplace: a randomised controlled trial in an experimental online canteen

 

Initially selected

£ mean ± SD

Swaps offered

£ mean ± SD

Price difference

£ mean (95% CIs)

Mains (n = 572)

4.38 ± 0.22

3.03 ± 0.82

-1.36 (-1.43 to -1.29)

Jacket potatoes (n = 368)

2.06 ± 0.39

1.45 ± 0.27

-0.61 (-0.65 to -0.58)

Sandwiches (n = 563)

2.86 ± 0.26

2.32 ± 0.47

-0.54 (-0.57 to -0.51)

Sweet snacks (n = 537)

1.45 ± 0.41

1.23 ± 0.33

-0.22 (-0.25 to -0.19)

Savoury snacks (n = 434)

0.74 ± 0.23

1.02 ± 0.19

0.28 (0.25 to 0.31)

Drinks (n = 462)

1.35 ± 0.14

0.91 ± 0.21

-0.44 (-0.46 to -0.42)

  1. Note, For price difference, negative values reflect a cheaper swap offered and positive values a more expensive swap offered. SD , standard deviation; 95% CIs, 95% confidence intervals
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International Journal of Behavioral Nutrition and Physical Activity

ISSN: 1479-5868

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