Table 1: General characteristics of the total study population and by ethnic background of the child ( ).

Total ( )Dutch ( ) (reference group)Moroccan ( )Turkish ( )Surinamese ( )Dutch Antillean ( )

Child characteristics
 Gender of child
  Girl (%)48.948.949.350.746.050.0
 Age of child (years)
  Mean (SD) 5.7 (0.4)5.7 (0.4)5.8 (0.5)5.8 (0.5)5.9 (0.4)5.7 (0.5)
 Overweight child
  Overweight (obesity included) (%)8.88.219.1**27.4**4.417.2**
Characteristics of parent
 Gender of responding parent
  Woman (%)89.990.967.8**65.1**83.9**93.8
 Age of parent (years)
  Mean (SD) 36.6 (4.5)36.7 (4.4)36.1 (6.9)33.8 (4.8)**36.7 (5.6)35.6 (5.9)
 Educational level of parent
  Low (%)21.820.647.754.623.522.6
  Mid (%)45.345.441.736.950.758.4
  High (%)32.833.910.6**8.5**25.729.0
 Parental overweight
  Overweight (obesity included) (%)a31.129.948.0**56.8**40.148.4**
Family characteristics
 Family situation
  Two-parent family (%)93.394.187.591.878.159.4
  Otherwise (%)6.75.912.5**8.221.9**40.6**b
Lifestyle-related behaviors child
 Playing outside
  ≥1 hour/day (%)83.383.872.476.779.675.0
  <1 hour/day (%)5.45.46.64.89.51.6
  Missing (%)11.310.821.1**18.5*10.9
 Watching TV
  ≤2 hours/day (%)76.778.639.545.961.354.7
  >2 hours/day (%)16.214.942.837.728.528.1
  Missing (%)7.16.617.8**16.4**10.2**
 Having breakfast
  7 days/week (%)93.594.487.565.186.987.5
  <7 days/week (%) 6.55.612.5**34.9**13.1**
 Sweet beverages
  ≤4/day (%)84.084.477.684.974.570.3
  >4 day (%) 16.015.622.4*15.125.5**29.7**

SD: standard deviation.
values are for chi-squared tests (categorical factors) or one-way analysis of variance (continuous factors).
   , .
aOverweight (obesity included) = BMI ≥ 25 (kg/m2) [3].
value also based on Fisher’s exact test because of small groups.