Table 3.

Comparisons of characteristics of SNS^a use.

Characteristics				Visiting an SNS					Sharing health information on SNSs					Watching a health-related video on YouTube					Writing in an online diary or blog
				%b		P valuec		%b			P valuec		%b			P valuec		%b				P valuec
Chronic conditions
	Cancer
		No	56.9		<.001		13.2			.12		27.0			.16		6.8				.08
		Yes	35.1				9.0					22.2					3.5
	Diabetes or high blood sugar
		No	56.7		<.001		13.1			.24		27.2			.03		6.7				.51
		Yes	35.8				9.7					19.3					5.3
	Hypertension or high blood pressure
		No	60.8		<.001		14.3			<.001		27.7			.03		7.4				.005
		Yes	38.2				8.5					23.2					4.0
	Heart diseases
		No	56.1		<.001		13.1			.07		26.9			.15		6.6				.55
		Yes	34.9				6.8					20.4					5.1
	Cerebrovascular diseases including stroke
		No	46.9		.42		11.3			.81		23.2			.69		3.2				.44
		Yes	55.3				12.9					26.6					6.6
	Chronic lung diseases
		No	55.5		.57		12.6			.23		25.9			.02		6.4				.38
		Yes	53.5				15.4					32.9					7.9
	Arthritis or rheumatism
		No	55.9		.001		12.9			.88		26.6			.77		6.4				.03
		Yes	38.2				12.3					27.9					11.9
	Depression or anxiety disorder
		No	54.3		.002		12.2			.001		26.1			.03		6.2				.01
		Yes	67.0				20.8					33.3					11.3
Sociodemographic and other variables
	Sex
		Men	52.8		.01		12.7			.79		25.1			.10		5.5				.03
		Women	57.9				13.1					28.2					7.7
	Age groups (years)
		20-29	85.1		<.001		24.5			<.001		38.4			<.001		10.2				<.001
		30-39	75.6				19.1					34.1					9.6
		40-49	61.6				13.9					23.4					7.9
		50-59	45.4				8.2					22.4					4.0
		60-69	30.9				5.0					23.7					4.1
		≥70	18.4				3.7					17.7					1.8
	Education status
		≤High school graduate	46.4		<.001		12.0			.48		25.7			.74		5.8				.04
		Career college/junior college	57.3				12.6					27.5					5.3
		≥College graduate	62.8				13.9					27.0					8.2
	Work
		No	45.5		<.001		10.1			.02		26.6			.99		6.3				.73
		Yes	58.7				13.8					26.6					6.7
	Marital status
		Not married	62.2		<.001		16.8			<.001		30.1			.01		8.3				.02
		Married	51.9				11.0					25.0					5.7
	Household income (million yend)
		<2	43.9		<.001		11.6			.27		27.0			.26		10.1				.31
		2 to <4	44.2				9.9					24.9					5.6
		4 to <6	55.2				13.7					29.2					6.6
		6 to <8	59.7				13.7					27.4					7.8
		8 to <10	60.2				12.7					29.4					5.9
		≥10	64.6				14.6					22.2					5.1
		No answer	64.8				19.7					22.2					9.7
	Health literacy
		5-15	48.5		<.001		10.9			<.001		24.2			.19		5.0				<.001
		16-18	55.9				10.7					25.2					6.9
		19-20	54.8				12.5					28.0					5.1
		≥21	64.0				20.6					29.6					11.3
	Self-reported health status
		Excellent, very-good, good	57.6		<.001		13.3			.24		26.5			.76		6.9				.17
		Fair-poor	46.0				11.3					27.2					5.1

^aSNS: social networking site.

^bResults were weighted to be representative of the adult population of internet users in Japan.

^cChi-square test.

^dUS $1=JPY 105.9.