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Table 3 Descriptive statistics for total food purchases, and environmental and nutritional outcomes per household per week for the total population and the control and experimental conditions in the virtual supermarket

From: Less meat in the shopping basket. The effect on meat purchases of higher prices, an information nudge and the combination: a randomised controlled trial

  Total population (n = 533) Control condition (n = 153) Price condition (n = 133) Information nudge condition (n = 126) Combination condition (n = 121)
Purchases
 Purchased food items (n) 39·7 16·4 40·5 15·5 37·6 14·7 41·8 17·3 38·6 15·7
of which meat (n) 3·6 2·8 4·3 3·1 3·7 2·4 4·2 2·8 3·2 2·4
Environmental impact
 Greenhouse gas emission (kg CO2-eq) 58·9 26·8 62·3 29·3 56·3 24·3 61·9 26·6 54·4 25·6
 Land use (m2/year) 38·3 19·6 39·6 21·4 37·1 18·5 40·1 17·5 36·2 20·2
 Blue water consumption (m3) 1·70 1·07 1·72 1·02 1·59 1·01 1·76 1·05 1·74 1·21
Nutritional outcomes
 Energy (kcal) 32,054 16,164 33,043 18,007 30,710 14,050 33,750 16,072 30,517 15,896
 Protein, En% 12·8 3·6 12·7 3·5 12·8 3·4 13·0 3·8 12·8 3·9
 Carbohydrates, En% 47·5 10·3 47·7 10·7 47·1 10·8 46·9 9·6 48·2 10·0
 Mono- and disaccharides, En% 20·9 8·0 21·8 8·7 20·2 7·8 20·3 7·5 20·9 7·8
 Fatty acids, En% 35·7 11·6 35·6 11·0 35·9 11·9 36·3 11·1 35·0 12·3
 Saturated fatty acids, En% 11·6 3·7 11·7 3·3 11·5 4·2 11·7 3·5 11·2 3·8
 Fibre, En% 2·3 0·8 2·2 0·8 2·3 0·8 2·3 0·8 2·5 0·9
 Salt (g) (median (IQR)) 81·2 65·4 82·9 64·8 79·5 60·0 89·0 64·9 73·9 66·2
  1. Data are n(%), mean (SD) or median (IQR). CO2-eq CO2 equivalents, En% Energy percentage