Table 5. Univariate and multivariate analyses of association between each domain of HBV/HCV knowledge and attitudes toward HBV/HCV infection (n=3,129).

		Odds ratio (95% confidence interval)
		Worrying about transmission		Avoiding contact with infected colleagues		Having prejudiced opinions about infected colleagues
		Univariate model	Multivariate modelab	Univariate model	Multivariate modelab	Univariate model	Multivariate modelab
Ensuring daily activities not to be infected
Lowc	(0–3)	ref	ref	ref	ref	ref	ref
Moderate	(4–5)	0.72 (0.65–0.80)	0.74 (0.66–0.81)	0.75 (0.68–0.82)	0.76 (0.69–0.83)	0.88 (0.82–0.94)	0.90 (0.84–0.96)
High	(6)	0.59 (0.53–0.65)	0.60 (0.54–0.66)	0.63 (0.58–0.69)	0.64 (0.58–0.70)	0.85 (0.80–0.90)	0.87 (0.81–0.91)
Test for linear trendd		p<0.001	p<0.001	p<0.001	p<0.001	p<0.001	p<0.001
Risk of infection
Lowc	(0–2)	ref	ref	ref	ref	ref	ref
Moderate	(3–4)	0.89 (0.80–0.97)	0.91 (0.83–1.00)	0.89 (0.81–0.96)	0.76 (0.68–0.83)	0.93 (0.87–0.99)	0.95 (0.89–1.01)
High	(5)	0.79 (0.72–0.86)	0.82 (0.75–0.89)	0.82 (0.76–0.88)	0.54 (0.48–0.60)	0.91 (0.85–0.96)	0.92 (0.87–0.97)
Test for linear trendd		p<0.001	p<0.001	p<0.001	p<0.001	p<0.001	p=0.002
Characteristics of HBV/HCV hepatitis
Lowc	(0)	ref	ref	ref	ref	ref	ref
Moderate	(1-3)	0.72 (0.65–0.80)	0.92 (0.85–0.99)	0.87 (0.80–0.93)	0.88 (0.81–0.94)	0.92 (0.87–0.97)	0.93 (0.88–0.98)
High	(4-8)	0.59 (0.53–0.65)	0.80 (0.73–0.86)	0.77 (0.71–0.83)	0.79 (0.73–0.85)	0.87 (0.82–0.92)	0.89 (0.83–0.94)
Test for linear trendd		p<0.001	p<0.001	p<0.001	p<0.001	p<0.001	p<0.001

a Each domain was entered into multivariate model separately

b Adjusted for sex, age, education, occupation, healthy status, individual income

c Reference category

d Test for linear trends were performed by modeling the group scores of HBV/HCV knowledge (1, 2, 3) as one variable.