Table 1

Socio-demographic characteristics of study participants by gender
Boys Girls All
N % N % N %
Age 11 y 10600 37.4 10128 34.1 20728 35.7
13 y 10244 34.0 10417 35.2 20661 34.6
15 y 8459 28.6 9080 30.7 17539 29.7
Total 29303 100 29625 100 58928 100
Geographicarea of residence North 11823 34.2 11954 33.4 23777 33.8
Centre 6451 17.4 6110 15.8 12561 16.6
South 11029 48.4 11561 50.8 22590 49.6
Total 29303 100 29625 100 58928 100
Parental education attainment┬░ Less than high school 7169 33.1 8264 38.0 15433 35.6
High school diploma 8906 36.4 9038 36.5 17944 36.4
University degree 7305 30.5 6472 25.5 13777 28.0
Total 23380 100 23774 100 47154 100
Missing 5923 20.6 5851 19.0 11774 19.8
Daily 15487 51.4 13707 44.1 29194 47.8
Breakfast Less than daily 13603 48.6 15717 55.9 29320 52.2
Total 29090 100.0 29424 100.0 58514 100.0
Missing 213 0.7 201 0.6 414 0.6
Underweight 403 1.7 796 3.0 1199 2.4
Normal-weight 17715 72.1 20200 81.4 37915 76.7
BMI Overweight 4337 21.5 2857 13.6 7194 17.5
Obese 849 4.8 426 2.0 1275 3.4
Total 23304 100.0 24279 100.0 47583 100.0
Missing 5999 20.9 5346 19.2 11345 20.0

┬░ Higher educational level between mother and father.

Lazzeri et al.

Lazzeri et al. Nutrition Journal 2014 13:69   doi:10.1186/1475-2891-13-69

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