Table 2.

Sample Characteristics (N = 1694)

				Age 5 years			Age 7 years
Description		n	%	n	%	Mean (SD)	n	%	Mean (SD)
Child gender	Boy	868	51.2
	Girl	826	48.8
Questionnaire completer	Mother			1652	97.5		1619	95.6
	Father			38	2.2		40	2.4
	Unknown/other/NA			4	0.3		35	2.1
Partner questionnaire completer	Mother			33	1.9		39	2.3
	Father			1492	88.1		1436	84.8
	Unknown/other/NA			169	9.9		219	12.9
Working hours questionnaire completer						21.25 (9.25)
Working hours partner questionnaire completer						36.71 (12.84)
Education level (highest in household)	Low Medium High			72 472 1145	4.3 27.9 67.8
Birth country female caregiver	Netherlands			1634	96.9
	Other			52	3.1
Birth country male caregiver	Netherlands			1622	96.3
	Other			62	3.7
Recruitment channel	Conventional Alternative	1372 322	81.0 19.0
Total physical activity (minutes per week)				1676		610.81 (394.25)	1623		904.48 (375.42)
Active transport to school (minutes per week)				1679		45.10 (53.11)	1659		108.99 (106.12)
Sports (minutes per week)				1694		42.94 (50.82)	1655		127.62 (110.23)
Playing outside (minutes per week)				1677		522.42 (385.30)	1661		669.08 (319.46)
Total sedentary screen-based behavior (minutes per week)				1679		363.16 (292.19)	1659		553.08 (351.69)
Television watching (minutes per week)				1679		315.71 (258.45)	1671		417.06 (263.44)
Computer playing (minutes per week)				1681		47.39 (91.23)	1665		137.26 (163.50)
Body Mass Index z-scores				1585		−0.26 (0.99)	1446		−0.32 (0.91)
Weight categories	Underweight			132	8.3		102	7.1
	Normal-weight			1312	82.8		1251	86.5
	Overweight			97	6.1		67	4.6
	Obesity			44	2.8		26	1.8

Missings educational level 5, missings BMI (5 years) 109, missings BMI (7 years) 248, missings physical activity (5 years) 18, missing physical activity (7 years) 71, missing sedentary screen-based behavior (5 years) 15, missings sedentary screen-based behavior (7 years) 35, missings birth country female caregiver 8, missings birth country male caregiver 10