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Table 2 Baseline characteristics of pupils: intervention group and control group

From: A primary-school-based study to reduce the prevalence of childhood obesity – the EdAl (Educació en Alimentació) study: a randomized controlled trial

  Intervention group (n = 1,222) Control group (n = 717)
  Total (%) Total (%)
Ethnicity   
Western European 76.2 80.4
Eastern Europeana 4.2 4.3
Latin American 7.4 10.7
North African (Arab origin) 10.6 2.7
Sub-Sahara African 0.4 0.1
East Asian (Chinese origin) 1.1 1.3
Indian 0.1 0.4
North American 0.0 0.1
Breastfeeding b   
0–1 month 66.5 65.2
1–3 months 7.9 6.9
3–6 months 12.5 12.7
>6 months 13.1 15.3
Father’s education level b   
Less than high school 3.3 1.2
High school 42.3 36.5
Technical training 36.5 38.9
Non-university higher education 1.3 1.4
University degree 16.6 22.1
Mother’s education level b   
Less than high school 3.1 1.6
High school 38.7 31.6
Technical training 37.1 39.6
Non-university higher education 1.1 2.2
University degree 20.1 24.9
  1. aEastern European includes Russia and newly independent states (former USSR). bData on maternal breastfeeding were solicited as this could be a possible confounding variable, as was the level of parental education.