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

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

				Odds ratio		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

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

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