Table 5.

Associations of characteristics and chronic diseases with SNS^a use.

Characteristics				Visiting an SNS, AORb (95% CI)c		Sharing health information on SNSs, AOR (95% CI)c		Watching a health-related video on YouTube, AOR (95% CI)c		Writing in an online diary or blog, AOR (95% CI)c
Chronic conditions
	Cancer
		No	Reference		Reference		Reference		Reference
		Yes	0.93 (0.64-1.34)		1.35 (0.76-2.42)		0.99 (0.67-1.46)		0.84 (0.35-2.02)
	Diabetes or high blood sugar
		No	Reference		Reference		Reference		Reference
		Yes	1.02 (0.70-1.48)		1.31 (0.71-2.42)		0.78 (0.51-1.19)		1.32 (0.61-2.83)
	High blood pressure or hypertension
		No	Reference		Reference		Reference		Reference
		Yes	0.83 (0.67-1.02)		1.01 (0.70-1.45)		1.06 (0.83-1.35)		0.89 (0.54-1.49)
	Heart condition
		No	Reference		Reference		Reference		Reference
		Yes	0.98 (0.64-1.48)		0.66 (0.29-1.50)		0.80 (0.47-1.38)		0.99 (0.34-2.92)
	Cerebrovascular diseases including stroke
		No	Reference		Reference		Reference		Reference
		Yes	1.81 (0.79-4.18)		1.36 (0.31-5.96)		0.97 (0.38-2.47)		0.53 (0.03-9.85)
	Chronic lung disease
		No	Reference		Reference		Reference		Reference
		Yes	1.00 (0.72-1.38)		1.21 (0.80-1.82)		1.42 (1.05-1.93)		1.20 (0.69-2.07)
	Arthritis or rheumatism
		No	Reference		Reference		Reference		Reference
		Yes	0.90 (0.55-1.46)		1.50 (0.72-3.13)		1.16 (0.72-1.85)		3.19 (1.53-6.64)
	Depression or anxiety disorder
		No	Reference		Reference		Reference		Reference
		Yes	1.49 (1.04-2.15)		1.67 (1.13-2.46)		1.27 (0.90-1.78)		1.62 (0.98-2.68)
Sociodemographic variables and other variables
	Sex
		Men	Reference		Reference		Reference		Reference
		Women	1.32 (1.07-1.63)		0.99 (0.75-1.32)		1.14 (0.92-1.41)		1.52 (1.07-2.17)
	Age groups (years)
		20-29	Reference		Reference		Reference		Reference
		30-39	0.51 (0.32–0.83)		0.81 (0.52–1.25)		0.83 (0.58–1.21)		1.09 (0.61–1.94)
		40-49	0.25 (0.16-0.39)		0.52 (0.35-0.79)		0.48 (0.33-0.71)		0.92 (0.52-1.65)
		50-59	0.13 (0.08-0.21)		0.27 (0.17-0.44)		0.46 (0.31-0.67)		0.45 (0.23-0.89)
		60-69	0.08 (0.05-0.12)		0.17 (0.09-0.31)		0.48 (0.31-0.72)		0.42 (0.21-0.87)
		≥70	0.05 (0.03-0.08)		0.13 (0.06-0.27)		0.32 (0.20-0.52)		0.17 (0.06-0.50)
	Education status
		≤High school graduate	Reference		Reference		Reference		Reference
		Career college/junior college	1.15 (0.90-1.47)		0.92 (0.64-1.33)		1.02 (0.79-1.32)		0.77 (0.48-1.21)
		≥College graduate	1.59 (1.24-2.02)		0.96 (0.69-1.33)		1.03 (0.80-1.33)		1.51 (1.00-2.29)
	Work
		No	Reference		Reference		Reference		Reference
		Yes	0.98 (0.78-1.23)		1.13 (0.79-1.61)		0.91 (0.71-1.15)		0.92 (0.58-1.47)
	Marital status
		Not married	Reference		Reference		Reference		Reference
		Married	1.10 (0.87-1.40)		0.89 (0.65-1.21)		1.00 (0.78-1.28)		0.89 (0.60-1.33)
	Household income (million yend)
		<2	Reference		Reference		Reference		Reference
		2 to <4	1.17 (0.78-1.77)		0.96 (0.50-1.83)		0.98 (0.61-1.55)		0.53 (0.24-1.18)
		4 to <6	1.48 (0.97-2.26)		1.23 (0.63-2.41)		1.15 (0.73-1.83)		0.54 (0.24-1.19)
		6 to <8	1.49 (0.97-2.27)		1.14 (0.58-2.26)		1.02 (0.63-1.66)		0.60 (0.26-1.35)
		8 to <10	1.52 (0.95-2.43)		1.06 (0.53-2.13)		1.16 (0.68-1.98)		0.44 (0.18-1.08)
		≥10	1.79 (1.12-2.86)		1.22 (0.60-2.48)		0.77 (0.46-1.31)		0.35 (0.15-0.83)
		No answer	1.72 (0.81-3.63)		1.59 (0.58-4.41)		0.67 (0.31-1.48)		0.67 (0.21-2.14)
	Health literacy
		5-15	Reference		Reference		Reference		Reference
		16-18	1.50 (1.14-1.98)		1.05 (0.71-1.54)		1.14 (0.86-1.49)		1.52 (0.93-2.49)
		19-20	1.64 (1.25-2.17)		1.41 (0.97-2.05)		1.38 (1.04-1.81)		1.17 (0.69-1.98)
		≥21	1.99 (1.43-2.77)		2.31 (1.52-3.50)		1.41 (1.03-1.94)		2.52 (1.47-4.30)
	Self-reported health status
		Excellent, very-good, good	Reference		Reference		Reference		Reference
		Fair-poor	0.88 (0.69-1.11)		0.97 (0.70-1.34)		1.17 (0.90-1.52)		0.70 (0.44-1.10)

^aSNS: social networking site.

^bAOR: adjusted odds ratio.

^cMultivariable logistic regression model adjusted for all variables.

^dUS $1=JPY 105.9.