Table 1

Characteristics (in %) of the study population
Total (n = 51856) Boys (n = 25326) Girls (n = 26529) Vocational education (n = 25426) Higher secondary education (n = 26408)
Mean age (SD) * 14.4 (1.2) 14.5 ( 1.3) 14.4 (1.2) 14.6 (1.2) 14.3 (1.3)
Gender (boys) 49 - - 50 48
Educational level††
  Vocational 49 50 48 - -
  Higher secondary education 51 50 52 - -
Ethnicity
  Dutch 86 86 86 84 88
  Non-Dutch 14 15 14 16 12
Weight status *
  Underweight 11 9 13 10 12
  Normal weight 80 81 80 79 82
  Overweight 8 9 6 10 6
  Obesity 1 1 1 1 1
Physically abused 6 6 6 7 5
Sexually abused * 7 5 8 8 5
Mentally abused * 18 16 20 20 16
Good parental communication * 73 77 69 72 75

* Significant difference between boys and girls and between vocational and higher secondary education (p < 0.05).

Significant difference only between vocational and higher secondary education (p < 0.05).

†† Significant difference only between boys and girls (p < 0.05).

Veldwijk et al.

Veldwijk et al. BMC Public Health 2012 12:840   doi:10.1186/1471-2458-12-840

Open Data