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Table 1 Socio-demographic characteristics of the pre-tax (2017) and post-tax samples (2018) in low-income neighbourhoods of Barcelona (intervention) and Madrid (control)

From: Impact of an excise tax on the consumption of sugar-sweetened beverages in young people living in poorer neighbourhoods of Catalonia, Spain: a difference in differences study

NPre-taxp-value aPost-taxp-value a
BarcelonaMadridBarcelonaMadrid
536450488455
Age, years
 Mean (SD)27.9 (7.8)26.7 (7.9)0.01529.8 (7.2)30.5 (7.2)0.109
Women, %52.247.20.12141.058.5< 0.001
Nationality, %  0.535  < 0.001
 Spanish77.278.8 81.652.1 
 Other22.821.2 18.447.9 
Educational level, %(n = 278)(n = 449)0.086(n = 488)(n = 454)< 0.001
 Less than primary5.410.9 3.16.6 
 Primary38.537.2 19.145.8 
 Secondary38.936.1 45.337.4 
 University17.315.8 32.610.1 
Occupational status, %(n = 531)(n = 449)0.009(n = 486) < 0.001
 Gainfully employed39.950.6 68.159.3 
 Unemployed16.414.7 10.320.2 
 Housework5.84.9 3.15.9 
 Student37.829.8 18.514.5 
  1. a Student’s t test for age and Pearson’s Chi2 test for the remaining variables