Skip to main content

Table 1 Population characteristics for control and experimental conditions

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)
Sex
 Male 253 47·5% 75 49·0% 67 50·4% 58 46·0% 53 43·8%
 Female 278 52·2% 78 51·0% 65 48·9% 67 53·2% 68 56·2%
 Other 2 0·4% 0 0·0% 1 0·8% 1 0·8% 0 0·0%
Age (years) 48·3 16·2 48·6 16·3 48·4 15·9 46·9 16·7 49·3 15·8
Household size 2·3 1·2 2·3 1·3 2·2 1·1 2·4 1·3 2·4 1·2
% persons > 13 y 29·1 28·4 28·5 26·8 29·7 29·7 28·4 28·7 29·9 29·0
Educational level
 Low 83 15·6% 20 13·1% 23 17·3% 23 18·3% 17 14·0%
 Moderate 180 33·8% 45 29·4% 41 30·8% 42 33·3% 52 43·0%
 High 270 50·7% 88 57·5% 69 51·9% 61 48·4% 52 43·0%
BMI (kg/m2) 26·5 5·8 27·5 6·0 25·9 5·5 26·7 5·9 25·6 5·5
Weight statusa
 Normal weight < 25 243 45·6% 65 42·5% 64 48·1% 58 46·0% 56 46·3%
 Overweight (≥25–30) 171 32·1% 50 32·7% 39 29·3% 38 30·2% 44 36·4%
 Obese (> 30) 107 20·1% 37 24·2% 25 18·8% 28 22·2% 17 14·0%
Meat consumption (frequency/week)
 0 34 6·4% 9 5·9% 8 6·0% 6 4·8% 11 9·1%
  < 1 8 1·5% 3 2·0% 2 1·5% 1 0·8% 2 1·7%
 1–2 71 13·3% 22 14·4% 18 13·8% 15 11·9% 16 13·2%
 3–4 179 33·6% 38 24·8% 51 38·3% 42 33·3% 48 49·7%
 5–7 241 45·2% 81 52·9% 54 40·6% 62 49·2% 44 36·4%
Type of (meat) consumer
 Vegan 7 1·3% 0 0·0% 4 3·0% 1 0·8% 2 1·7%
 Vegetarian 20 3·8% 8 5·2% 3 2·3% 4 3·2% 5 4·1%
 Pescatarian 5 0·9% 1 0·7% 1 0·8% 1 0·8% 2 1·7%
 Flexitarian 20 35·3% 48 31·4% 46 34·6% 45 35·7% 49 40·5%
 Meat consumer 313 58·7% 96 62·7% 79 59·4% 75 59·5% 63 52·1%
Purchased meat
 Yes 471 88·4% 138 90·2% 117 88·0% 114 90·5% 102 84·3%
 No 62 11·6% 15 9·8% 16 12·0% 12 9·5% 19 15·7%
Grocery responsibility
 Entirely 337 63·2% 99 64·7% 87 65·4% 78 61·9% 73 60·3%
 Largely 196 36·8% 54 35·3% 46 34·6% 48 38·1% 48 49·7%
Household monthly income (gross in €)
 Low (0–2000) 136 25·5% 38 24·8% 34 25·6% 26 20·6% 38 31·4%
 Moderate (2000–3000) 135 25·3% 37 24·2% 41 30·8% 33 26·2% 24 19·8%
 High (3000+) 262 49·2% 78 51·0% 58 43·6% 67 53·2% 59 48·8%
Household weekly food expenditures (in €)
 0–59 170 31·9% 52 34·0% 42 31·6% 40 31·7% 36 29·8%
 60–99 205 38·5% 55 35·9% 49 36·8% 53 42·1% 48 39·7%
  ≥ 100 158 39·6% 46 30·1% 42 31·6% 33 26·2% 37 30·6%
Changed purchases due to COVID-19
 No 442 82·9% 124 81·0% 112 84·2% 99 78·6% 107 88·4%
 Yes 91 17·1% 29 19·0% 21 15·8% 27 21·4% 14 11·6%
Shopping budget in virtual supermarket (in €) 87·10 31·69 87·11 34·37 85·05 30·28 89·33 34·52 87·02 26·34
 % of budget spent 83·4 21·7 84·2 19·8 84·6 21·4 83·4 22·3 81·3 23·6
Total expenditure (€) 71·24 28·23 72·28 30·40 70·29 26·37 72·58 27·78 69·58 28·06
Appreciation of shopping budget
 More than usual 165 31·0% 49 32·0% 32 24·1% 47 37·3% 37 30·6%
 Same as usual 256 48·0% 71 46·2% 67 50·4% 62 49·2% 56 46·3%
 Less than usual 112 21·0% 33 21·6% 34 25·6% 17 13·5% 28 23·1%
Price awarenessb 4·0 1·6 3·9 1·6 4·1 1·6 3·8 1·7 4·1 1·6
Understanding virtual supermarketc 4·6 0·6 4·5 0·6 4·6 0·6 4·5 0·6 4·6 0·7
Comparability to real-life purchasesd 4·1 0·8 4·0 0·8 4·1 0·8 4·1 0·8 4·0 0·8
  1. Data are n (%) or mean (SD). BMI Body Mass Index
  2. a12 missing values
  3. bMeasured by one item “The program was easy to understand” indicated on a five-point Likert scale ranging from 1 “strongly disagree” to 5 “strongly agree”
  4. cMeasured by two items “To what extent did you notice prices in the virtual supermarket?” and “To what extent did prices influence your choices in the virtual supermarket?” indicated on a seven-point Likert scale ranging from 1 “not at all” to 7 “extremely”
  5. dMeasured by one item “The products I have purchased in the virtual supermarket are comparable to my regular food purchases in real-life” indicated on a five-point Likert scale ranging from 1 “strongly agree” to 5 “strongly agree”