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Table 2 Socio-demographic characteristics of the study population

From: The effects of nudging and pricing on healthy food purchasing behavior in a virtual supermarket setting: a randomized experiment

Sociodemographic characteristics 25% price increase arm
(N = 128)
25% price discount arm
(N = 136)
25% price increase and discount arm
(N = 136)
Total sample
(N = 400)
Median age in years (IQR) 32.5 (25.0) 39.5 (24.5) 30.0 (23.0) 30.0 (24.0)
Sex (% female) 59.4% 58.8% 65.4% 61.2%
Mean BMI (SD)a 24.6 (4.8) 24.6 (4.9) 25.1 (4.7) 24.7 (4.8)
Overweight status (% overweight or obese)a 34.9% 35.8% 41.2% 37.3%
Educational level (% highly educated) 49.2% 42.7% 44.1% 45.3%
Income (% high income)b,c 40.9% 26.1% 31.9% 32.8%
Employment situation
% Full time job 29.7% 22.8% 22.8% 25.0%
% Part time job 25.8% 25.0% 25.7% 25.6%
% Student 20.3% 26.5% 29.4% 25.5%
% Unemployedd 22.7% 22.8% 17.7% 21.0%
% Entrepreneur or other 2.4% 3.0% 4.4% 2.3%
Household composition
Mean number of adults in the household 1.9 (0.8) 1.9 (1.1) 1.9 (0.8) 1.9 (0.9)
Mean number of children in the household 0.5 (0.9) 0.5 (0.9) 0.5 (1.0) 0.5 (0.9)
  1. Abbreviations: IQR Interquartile range, SD Standard Deviation
  2. a9 Missing values
  3. b4 missing values
  4. cCalculated using the OECD-modified scale and the median cut-off value was €1743
  5. dIncludes those who are retired, unemployed, unable to work and/or receiving social benefits, and housewives/men