Table 3

Factors associated with HIV and syphilis testing among heterosexual STD clinic patients, a cross-sectional survey in China, 2016 (n=1943)

Variables	HIV testing*				Syphilis testing*
	Crude model	P	Adjusted model	P	Crude model	P	Adjusted model	P
	OR (95% CI)	P	OR (95% CI)	P	OR (95% CI)	P	OR (95% CI)	P
Ever diagnosed with STD
Yes	1.17 (0.92~1.49)	0.198	1.19 (0.93~1.53)	0.173	1.88 (1.37~2.56)†	<0.001	1.78 (1.29~2.44)†	<0.001
No	Ref.		Ref.		Ref.		Ref.
Condom use in the last sexual encounter
Yes	3.06 (2.48~3.77)†	<0.001	3.25 (2.61~4.05)†	<0.001	3.06 (2.48~3.77)†	<0.001	2.23 (1.76~2.84)†	<0.001
No	Ref.		Ref.		Ref.		Ref.
Consistently used condom in the last 6 months
Yes	1.51 (1.12~2.02)†	<0.001	1.96 (1.44–2.67)†	<0.001	2.22 (1.69~2.90)†	<0.001	2.37 (1.79~3.15)†	<0.001
No	Ref.		Ref.		Ref.		Ref.
Ever had paid sex in the last 6 months
Yes	3.80 (2.70~5.36)†	<0.001	3.19 (2.24~4.56)†	<0.001	2.08 (1.46~2.97)†	<0.001	1.84 (1.27~2.67)†	0.001
No	Ref.		Ref.		Ref.		Ref.
Condom use in the last paid sexual act
Yes	0.82 (0.42~1.61)	0.571	0.93 (0.41~2.12)	0.867	0.78 (0.42~1.46)	0.436	1.21 (0.58~2.52)	0.621
No	Ref.		Ref.		Ref.		Ref.
Received any kind of HIV/STD-related knowledge in the last 12 months
Yes	1.85 (1.51~2.26)†	<0.001	1.94 (1.58~2.40)†	<0.001	2.53 (1.97~3.24)†	<0.001	2.91 (2.25~3.77)†	<0.001
No	Ref.		Ref.		Ref.		Ref.
Ever had HIV testing in the last 12 months
Yes	2.32 (1.30~4.15)†	0.005	2.11 (1.20~3.69)†	0.009	3.06 (1.39~6.74)†	0.006	3.09 (1.39~6.86)†	<0.001
No	Ref.		Ref.		Ref.		Ref.
Ever had syphilis testing in the last 12 months
Yes	0.70 (0.50~0.98)†	0.048	0.75 (0.53~1.06)	0.101	1.73 (1.11~2.69)†	0.016	1.87 (1.19~2.94)†	0.007
No	Ref.		Ref.		Ref.		Ref.

*Adjusted model was adjusted for age (continuous), gender, ethnic, education, marital status and monthly income.
†p<0.05.
STD, sexually transmitted diseases.