Table 1. Characteristics of participants.

	Non-native	Native	P value*
Greece
N (%)	108 (10.0)	975 (90.0)
Age (mean, SD)	11.4	11.3	0.190
Gender (% males)	45.4	46.1	0.018
Parental education level (%)
Low	71.2	46.3	<0.001
High	28.8	53.7
BMI (mean, SD)	19.5 (3.7)	20.5 (3.8)	0.009
WC (mean, SD)	68.1 (9.6)	70.8 (9.8)	0.008
Netherlands
N	75 (8.2)	844 (91.8)
Age (mean, SD)	11.9	11.7	0.055
Gender (% males)	50.7	49.5	0.036
Parental education level (%)
Low	66.7	20.8	0.001
High	33.3	79.2
BMI (mean, SD)	19.8 (3.8)	18.3 (3.0)	<0.001
WC (mean,SD)	66.3 (8.9)	63.0 (7.3)	<0.001

^*Student’s t-test (age, BMI, weight) and Pearson Chi-Square (% males, % parental education).