Seroprevalence and Associated Factors of Human Immunodeficiency Virus, Treponema pallidum, Hepatitis B Virus, and Hepatitis C Virus among Female Sex Workers in Dessie City, Northeast Ethiopia

Table 4

Bivariable and multivariable analysis of factors for any one of the four STIs among female sex workers () at Dessie City from November 2017 to April 2018.

Parameter	Any STI		value	COR [95% CI]	value	AOR [95% CI]
	Positive; No. (%)	Negative; No. (%)
Age			0.001		0.91
18-27	35 (41.7)	167 (60.5)	Ref		Ref
28-37	32 (38.1)	90 (32.6)	0.057	1.7 [0.99-2.9]	0.82
38-49	17 (20.2)	19 (6.9)	0.000	4.3 [2.02-9.03]	0.66
Marital status			0.000		0.048
Married	8 (9.5)	2 (0.7)	Ref		Ref	Ref
Single	30 (35.7)	158 (57.2)	0.000	0.05 [0.01-0.24]	0.026	0.095 [0.012-0.76]
Divorced	34 (40.5)	98 (35.5)	0.003	0.09 [0.02-0.43]	0.006	0.05 [0.006-0.428]
Widowed	12 (14.3)	18 (6.5)	0.04	0.17 [0.03-0.92]	0.022	0.072 [0.008-0.682]
Price per customer
1-500 birr	61 (72.6)	164 (59.4)	0.03	1.81 [1.06-3.1]	0.603
>500 birr	23 (27.4)	112 (40.6)	Ref	Ref	Ref
Place of obtaining customer			0.005		0.206
Home	25 (29.8)	43 (15.6)	Ref	Ref	Ref
Night club	36 (42.9)	168 (60.9)	0.16	1.64 [0.83-3.26]	0.707
Street	23 (27.4)	65 (23.6)	0.099	0.61 [0.33-1.1]	0.112
Having children			0.005		0.861
1-2	26 (31)	66 (23.9)	0.034	1.87 [1.05-3.34]	0.998
>2	22 (26.2)	39 (14.1)	0.002	2.68 [1.42-5.05]	0.646
No	36 (42.9)	171 (62)	Ref	Ref	Ref
Having another occupation
Yes	40 (47.6)	73 (26.4)	0.000	2.53 [1.53-4.19]	0.12
No	44 (52.4)	203 (73.6)	Ref	Ref	Ref
Awareness about STIs
Yes	55 (65.5)	157 (56.9)	0.16	1.44 [0.86-2.39]	0.918
No	29 (34.5)	119 (43.1)	Ref	Ref	Ref
Hospital admission history
Yes	36 (42.9)	77 (27.9)	0.01	1.94 [1.17-3.22]	0.265
No	48 (57.1)	199 (72.1)	Ref	Ref	Ref
Surgical operation history
Yes	19 (22.6)	23 (8.3)	0.001	3.22 [1.65-6.26]	0.889
No	65 (77.4)	253 (91.7)	Ref	Ref	Ref
Blood transfusion history
Yes	16 (19)	15 (5.4)	0.000	4.09 [1.93-8.7]	0.301
No	68 (81)	261 (94.6)	Ref	Ref	Ref
Sharing of sharp materials
Yes	30 (35.7)	24 (8.7)	0.000	5.83 [3.16-10.76]	0.009	2.96 [1.32-6.66]
No	54 (64.3)	252 (91.3)	Ref	Ref	Ref	Ref
Tattooing
Yes	46 (54.8)	101 (36.6)	0.003	2.1 [1.28-3.44]	0.701
No	38 (45.2)	175 (63.4)	Ref	Ref	Ref
Mutilation
Yes	43 (51.2)	109 (39.5)	0.058	1.61 [0.98-2.63]	0.907
No	41 (48.8)	167 (60.5)	Ref	Ref	Ref
Alcohol drinking habit
Yes	79 (94)	244 (88.4)	0.143	2.07 [0.78-5.5]	0.357
No	5 (6)	32 (11.6)	Ref		Ref
Frequent drug abuse
Yes	12 (14.3)	22 (8)	0.087	1.92 [0.91-4.08]	0.073	2.387 [0.921-6.182]
No	72 (85.7)	254 (92)	Ref	Ref	Ref	Ref
Age (in years) when sex started
≤20	33 (39.3)	146 (52.9)	Ref	Ref	0.510
>20	51 (60.7)	130 (47.1)	0.03	1.74 [1.06-2.86]	Ref
History of breakage of condom
Yes	76 (90.5)	192 (69.6)	0.000	4.16 [1.92-9]	0.012	3.28 [1.304-8.267]
No	8 (9.5)	84 (30.4)	Ref	Ref	Ref	Ref
No. of customers per week
1-3	38 (45.2)	90 (32.6)	0.035	1.71 [1.04-2.81]	0.039	2.05 [1.036-4.053]
>3	46 (54.8)	186 (67.4)	Ref	Ref		Ref
Presence of discharge
Yes	30 (35.7)	14 (5.1)	0.000	10.4 [5.17-20.91]	0.000	7.66 [3.094-18.989]
No	54 (64.3)	262 (94.9)	Ref	Ref	Ref	Ref
How long as FSW
1-2 years	22 (26.2)	117 (42.4)	Ref	Ref	0.274
>2 years	62 (73.8)	159 (57.6)	0.008	2.07 [1.21-3.57]	Ref

Note: statistically significant at ; AOR: adjusted odds ratio; COR: crude odds ratio; Ref: reference category; 95% CI: 95% confidence interval.