. 2023 Jul 6;6:e44920. doi: 10.2196/44920

Table 2.

Lifestyle characteristics of respondents by quartile of the duration of gameplay at enrollment. Values in the same row or category not sharing the same superscript are significantly different at P<.05 in the 2-sided test of equality for column proportions. Values with no superscript letters were not included in the test. Tests assume equal variances. Tests are adjusted for all pairwise comparisons within the rows in each subcategory using Bonferroni correction.

			Quartile of the duration of video game played per week							P value
			1		2		3		4
Ate dairy products yesterday										<.001
	Did not eat	19.3^a		14.3^b		12.8^b		15.0 ^b
	Ate once	35.0^a		26.9^b		31.5^a,b		30.3^a,b
	Ate twice or more	45.6^a		58.8^b		55.7^b		54.6^b
Ate fruit or fruit juice yesterday										.03
	Did not eat	23.6^a		17.4^b		20.8^a,b		20.1^a,b
	Ate once	30.3^a		32.6^a		32.6^a		30.9^a
	Ate twice or more	46.2^a		50.0^a		46.5^a		49.0^a
Ate vegetables yesterday										.08
	Did not eat	32.5^a		26.8^b		31.4^a,b		30.2^a,b
	Ate once	39.1^a		44.0^a		37.5^a		40.9^a
	Ate twice or more	28.4^a		29.2^a		31.1^a		28.9^a
Ate bread, pasta, or rice yesterday										.004
	Did not eat	8.9^a		6.7^a,b		7.1^a,b		5.1^b
	Ate once	31.2^a		27.4^a		29.6^a		30.0^a
	Ate twice or more	59.9^a		65.9^b		63.3^a,b		65.0^a,b
Ate pastry products yesterday										<.001
	Did not eat	50.7^a		42.0^b		40.6^b		41.7^b
	Ate once	30.6^a		36.5^b		37.2^b		32.7^a,b
	Ate twice or more	18.7^a		21.6^a,b		22.2^a,b		25.6^b
Regular cigarette smoking			22.0^a		15.0^b		16.8^b		17.6^a,b	<.001
Drink alcohol >2-3 times			59.4^a		49.0^b		50.1^b		48.6^b	<.001
Drug use			29.0^a		22.2^b		22.5^b		23.5^b	<.001
Participation in any sports-related clubs at school			100.0		100.0		100.0		100.0	N/A^c
Days or week of physical education classes										.07
	0 days	43.7^a		36.7^a,b		34.57^a,b		33.9^b
	1 day	1.5^a		2.7^a,b		4.4^b		1.6^a,b
	2 days	5.4^a		7.0^a		6.8^a		4.4^a
	3 days	9.6^a		9.4^a		8.4^a		10.4^a
	4 days	1.7^a		1.2^a		1.2^a		2.0^a
	5 days	38.0^a		43.0^a,b		44.6^a,b		47.8^b

^cN/A: not applicable.