Table 2

Signs and symptoms of Trichomonas vaginalis infection at examination

	Bivariate*					Adjusted model†‡
	N with T. vaginalis/total	%	RR	95% CI	p Value	RR	95% CI	p Value
Female partner
Abnormal vaginal discharge
Absent	679/6452	10.5	Ref	–	–	Ref	–	–
Present	173/1041	16.6	1.58	1.35 to 1.84	<0.001	1.50	1.28 to 1.76	<0.001
Cervical bleeding
Absent	683/6514	10.5	Ref	–	–	Ref	–	–
Present	169/978	17.3	1.65	1.41 to 1.92	<0.001	1.35	1.14 to 1.59	<0.001
Adnexal, cervical or uterine tenderness
Absent	818/7278	11.2	Ref	–	–	Ref	–	–
Present	34/213	16.0	1.42	1.04 to 1.95	0.029	1.46	1.05 to 2.03	0.025
Male partner
Urethral discharge
Absent	318/7517	4.2	Ref	–	–	Ref	–	–
Present	1/13	7.7	1.82	0.28 to 12.0	0.534	1.37	0.19 to 9.68	0.754

*Some study participants were missing information on signs and symptoms: vaginal discharge (n=38), cervical bleeding (n=39), tenderness (n=40) and urethral discharge (n=1). Among the 852 women with T. vaginalis who had complete information on the presence of signs and symptoms, 555 were asymptomatic while 231, 53 and 13 women experienced one, two, or three signs and symptoms, respectively.
†Adjusted for study, region, Neisseria gonorrhoeae, Chlamydia trachomatis, bacterial vaginosis (women only) and serology for HSV-2, Treponema pallidum and HIV-1.
‡Some study participants had missing covariate values and were excluded from the adjusted model. Among women: N. gonorrhoeae (n=169), C. trachomatis (n=173), bacterial vaginosis (n=665) and T. pallidum (n=131). Among men: N. gonorrhoeae (n=29), C. trachomatis (n=30) and T. pallidum (n=151). The number of participants in each adjusted model differed: vaginal discharge (n=6007), cervical bleeding (n=6006), tenderness (n=6005) and urethral discharge (n=7349). Ref, reference group.