Table 5

Factors associated with intention to undertake hepatitis B-related behaviours and actual behaviours of migrant workers

Variables	Intention to undertake hepatitis B-related behaviours						Actual hepatitis B-related behaviours
		Block I^a		Block II^b		Block III^c		Block I^a		Block II^b		Block III^c
	OR	95% CI	OR	95% CI	OR	95% CI	OR	95% CI	OR	95% CI	OR	95% CI
Gender
Men	Ref				Ref		Ref				Ref
Women	0.61	(0.39 to 0.95)*			0.97	(0.58 to1.61)	0.91	(0.66 to 1.24)			1.14	(0.82 to 1.57)
Age group
51+	Ref				Ref		Ref				Ref
18–30	3.49	(1.91 to 6.39)***			2.77	(1.41 to 5.43)**	1.39	(0.91 to 2.13)			1.48	(0.94 to 2.33)
31–40	2.06	(1.13 to 3.77)*			1.92	(0.96 to 3.82)	0.90	(0.55 to 1.48)			0.94	(0.56 to 1.58)
41–50	1.54	(0.91 to 2.61)			1.60	(0.88 to 2.81)	1.05	(0.65 to 1.68)			1.02	(0.62 to 1.67)
Education background
College and above	Ref				Ref
Primary school or below	1.46	(0.74 to 2.88)			0.67	(0.31 to 1.46)	–	–			–	–
Junior middle school	2.16	(1.25 to 3.73)**			1.49	(0.80 to 2.76)	–	–			–	–
High school	1.37	(0.84 to 2.24)			1.00	(0.57 to 1.76)	–	–			–	–
Live together with spouse/partner
No	Ref				Ref
Yes	0.93	(0.62 to1.40)			1.00	(0.64 to1.58)	–	–			–	–
Accommodation
Self-renting room/self-purchased house	Ref				Ref
Corenting room/dormitory	1.34	(0.90 to 2.01)			1.36	(0.87 to 2.13)	–	–			–	–
Type of work
Secondary industry	Ref				Ref
Tertiary industry	1.08	(0.71 to 1.63)			0.91	(0.56 to 1.49)	–	–			–	–
Working hours per day
≤8 hours	Ref				Ref		Ref				Ref
>8 hours	1.25	(0.85 to 1.82)			1.39	(0.90 to 2.13)	1.22	(0.92 to 1.64)			1.25	(0.93 to 1.69)
Monthly personal income (RMB)
>4000	Ref				Ref		Ref				Ref
<2500	0.92	(0.54 to 1.54)			0.87	(0.49 to 1.55)	0.86	(0.60 to 1.22)			0.77	(0.54 to 1.12)
2501–4000	1.16	(0.76 to 1.76)			1.03	(0.65 to 1.63)	0.94	(0.70 to 1.24)			0.85	(0.63 to 1.14)
Do you smoke?
No	Ref				Ref		Ref				Ref
Yes	1.35	(0.77 to 2.38)			1.09	(0.58 to 2.06)	1.43	(0.99 to 2.03)			1.32	(0.92 to 1.89)
Do you drink?
No	Ref				Ref		Ref				Ref
Yes	1.58	(0.93 to 2.71)			1.54	(0.84 to 2.83)	1.63	(1.18 to 2.26)**			1.57	(1.12 to 2.19)**
Level of hepatitis B knowledge
Good (11–13)	Ref				Ref
Medium (8–10)	2.01	(1.12 to 3.60)*			1.65	(0.86 to 3.20)	–	–			–	–
Poor (0–7)	2.30	(1.22 to 4.33)*			2.10	(1.03 to 4.28)*	–	–			–	–
TPB variables
AB			9.36	(5.32 to 16.46)***	9.49	(5.32 to 16.91)***			1.29	(1.02 to 1.63)*	1.27	(0.99 to 1.61)
BI			–	–	–	–			1.38	(1.07 to 1.76)*	1.42	(1.10 to 1.82)**
SN			2.20	(1.54 to 3.17)***	2.06	(1.44 to 2.95)***			1.19	(1.00 to 1.41)	1.16	(0.97 to 1.38)
PBC			1.10	(0.98 to 1.24)	0.99	(0.86 to 1.14)			1.01	(0.92 to 1.11)	0.95	(0.86 to 1.05)
EB			1.92	(1.43 to 2.58)***	2.17	(1.60 to 2.94)***			1.29	(1.07 to 1.56)**	1.23	(1.01 to 1.50)*
RF			1.20	(1.05 to 1.38)**	1.23	(1.06 to 1.42)**			1.10	(0.99 to 1.24)	1.13	(1.02 to 1.25)*

^aBlock I: sociodemographics and knowledge level. ^bBlock II: TPB variables. ^cBlock III: demographics, knowledge level and TPB variables. *p<0.05; **p<0.01; ***p<0.001.
AB, attitudes toward a behaviour; BI, behavioural intention; EB, experience of behaviour; PBC, perceived behavioural control; RF, regret feeling; SN, subjective norms.