Table 1.

Demographics by Video Game use category

Demographic characteristic	Subcategory	Less than 1 h or 1 h/week	Greater than 1–5 h/week	Greater than 5 h/week	p value
	Total sample size	(n = 1254)	(n = 1294)	(n = 636)
Age of child	Mean age	8.5	8.83	9	<0.01
	6	55.65	28.87	15.47
	7	51.92	36.66	11.43
	8	44.61	35.12	20.27
	9	41.16	38.79	20.05
	10	34.03	42.16	23.8
	11	26.29	46.52	27.19

Demographic characteristic	Subcategory	Less than 1 h or 1 h/week	Greater than 1–5 h/week	Greater than 5 h/week	p value
	Total sample size	(n = 1258)	(n = 1298)	(n = 639)
Sex of child	Girl	47.43	35.73	16.84	<0.01
	Boy	35.97	41.41	22.62

Demographic characteristic	Subcategory	Less than 1 h or 1 h/week	Greater than 1–5 h/week	Greater than 5 h/week	p value
	Total sample size	(n = 1258)	(n = 1298)	(n = 639)
Number of children in family	1	39.89	41.5	18.61	<0.01
	2 or 3	39.32	39.86	20.82
	≥4	51.65	29.89	18.46

Demographic characteristic	Subcategory	Less than 1 h or 1 h/ week	Greater than 1–5 h/ week	Greater than 5 h/ week	p value
	Total sample size	(n = 1161)	(n = 1223)	(n = 601)
Mother’s highest level of  education	College completed	66.07	25.64	8.28	<0.01
	Secondary  completed	51.19	31.15	17.65
	Some secondary	39.09	39.06	21.86
	None/primary	33.81	44.38	21.8
	Other	50.26	34.71	15.03

Demographic characteristic	Subcategory	Less than 1 h or 1 h/week	Greater than 1–5 h/week	Greater than 5 h/week	p value
	Total sample size	(n = 1253)	(n = 1298)	(n = 635)
Age of mother	Mean age	35.73	35.83	35.79	<0.01
	≤35	42.68	38.31	19.01
	>35, ≤40	38.74	39.02	22.24
	>40	41.79	40.19	18.01

Demographic characteristic	Subcategory	Less than 1 h or 1 h/week	Greater than 1–5 h/week	Greater than 5 h/week	p value
	Total sample size	(n = 1253)	(n = 1298)	(n = 635)
Maternal psychological distress	Psych distress	40.36	39.41	20.23	<0.01
	No psych distress	44.15	36.65	19.2

Demographic characteristic	Subcategory	Less than 1 h or 1 h/week	Greater than 1–5 h/week	Greater than 5 h/week	p value
	Total sample size	(n = 1210)	(n = 1256)	(n = 622)
Maternal activity	Active	37.99	41.39	20.63	<0.01
	Inactive	46.21	35.74	18.05

Demographic characteristic	Subcategory	Less than 1 h or 1 h/week	Greater than 1-5 h/week	Greater than 5 h/week	p value
	Total sample size	(n = 1205)	(n = 1270)	(n = 620)
Mother’s marital status	In couple	39.85	39.69	20.46	<0.01
	Single	46.32	36.4	17.27

Demographic characteristic	Subcategory	Less than 1 h or 1 h/week	Greater than 1-5 h/week	Greater than 5 h/week	p value
	Total sample size	(n = 1258)	(n = 1298)	(n = 639)
Country	Bulgaria	39.82	36.27	23.91	<0.01
	East Germany	53.7	40.38	5.92
	West Germany	59.4	37.05	3.55
	Lithuania	47.37	30.45	22.18
	The Netherlands	38.43	47.54	14.03
	Romania	31.03	48.87	20.1
	Turkey	45.11	43.34	11.55

Demographic characteristic	Subcategory	Less than 1 h or 1 h/week	Greater than 1-5 h/week	Greater than 5 h/week	p value
	Total sample size	(n = 1258)	(n = 1298)	(n = 639)
Region	East	41.11	38.4	20.49	<0.01
	West	47.17	43.17	9.66
Intellectual functioning	High	64.03	69.96	77.35	0.000
	Low/average	35.97	30.04	22.65
School achievement	High	53.15	60.28	68.72	0.000
	Low/average	46.85	39.72	31.28