Table 1.

Matched study sample characteristics.

	t1 a		t2 b		Total
	n	%	n	%	n	%
Gender
Girl	481	80.3	477	79.6	958	80
Boy	118	19.7	122	20.4	240	20
Migration background
No	491	82.0	488	81.5	979	81.7
Yes	108	18.0	111	18.5	219	18.3
Region
Northeast	380	63.4	379	63.3	759	63.4
Southeast	171	28.5	172	28.7	343	28.6
West	48	8	48	8	96	8
Age M (SD)	16.64 (1.46)		16.66 (1.48)		16.65 (1.47)

^a t1: sample from February 2021; ^b t2: sample from April to May 2022.