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Table 3 Regression analyses for proportional pricing on size choice, kcals ordered and money spent for the three food outlets

From: The impact of calorie labelling and proportional pricing on out of home food orders: a randomised controlled trial study using a virtual food and drink delivery app

 

Estimate

Std. error

Sig.

Odds ratio

95% CI

Lower

95% CI Upper

Size choice1

Coffee shop beverage size

Pseudo R2

0.067

     

Pricing condition (proportional)

-0.54

0.13

< 0.001

0.58

0.45

0.75

Sandwich size

Pseudo R2

0.156

     

Pricing condition (proportional)

-0.23

0.14

0.098

0.79

0.60

1.04

Fast food meal size

Pseudo R2

0.124

     

Pricing condition (proportional)

-0.07

0.13

0.584

0.93

0.72

1.20

Kcals ordered2

Coffee shop

Adjusted R2

0.097

     

Pricing condition (proportional)

-13.75

7.26

0.058

 

-27.99

0.48

Sandwich shop

Adjusted R2

0.119

     

Pricing condition (proportional)

-1.77

20.62

0.932

 

-42.23

38.70

Fast food outlet

Adjusted R2

0.178

     

Pricing condition (proportional)

51.25

16.13

0.002

 

19.59

82.90

Money spent3

Coffee shop spend

Adjusted R2

0.082

     

Pricing condition (proportional)

0.21

0.04

< 0.001

 

0.13

0.29

Sandwich shop spend

Adjusted R2

0.112

     

Pricing condition (proportional)

0.78

0.19

< 0.001

 

0.41

1.16

Fast food outlet spend

Adjusted R2

0.138

     

Pricing condition (proportional)

0.57

0.07

< 0.001

 

0.43

0.70

  1. 1Estimates indicate the average change in the log odds of the response variable associated with a one unit increase in each predictor variable, 2 Estimates are in kcals, 3 Estimates in pound sterling