Blood-borne and sexually transmitted infections: a cross-sectional study in a Swiss prison

BMC Infectious Diseases

Table 3 Bivariate and multivariate analyses of HCV and HSV-2 according to sociodemographic and sexual health factors

		HCV			HSV-2
Variable ^c		n = 17	p-value bivariate model	p-value multivariate model^d	n = 35	p-value bivariate model	p-value multivariate model^d
Variable ^c		n = 17	V-Cramer	OR	n = 35	V-Cramer	OR^d
Region of origin
	European countries	14/129 (10.9%)	.003 ^a		12/79 (15.2%)	.028 ^a
	Other regions	3/144 (2.0%)	0.181		23/77 (29.8%)	0.176
Age
	< 28 years	5/131 (3.8%)	.113^a		10/67 (14.9%)	.051^a	.019
	≥ 28 years	12/142 (8.5%)	–		25/89 (28.1%)	0.156	2.63
Education level
	Secondary school not completed	1/74 (1.4%)	.047 ^b		15/39 (38.5%)	.009 ^a	.034
	Secondary school completed	16/191 (8.4%)	0.129		20,112 (17.9%)	0.214	3.21
Condom use for sexual protection
	Always	3/87 (3.5%)	.165^a		16/63 (25.4%)	.585^a
	Sometimes or never	14/177 (7.9%)	–		19/88 (21.6%)	–
Sexual intercourse with sex workers
	Never	4/125 (3.2%)	.044 ^a		13/65 (20%)	.421^a
	At least once	13/140 (9.3%)	0.124		22/86 (25.6%)	–
Sexual orientation
	Homosexual/bisexual	1/6 (16.7%)	.662^b		0/3 (0%)	.999^b
	Heterosexual	16/259 (6.2%)	–		35/148 (23.6%)	–
Number of sexual partners
	0 to 5	3/71 (4.2%)	.369^a		8/44 (18.2%)	.450^a
	6 or more	14/192 (7.3%)	–		25/105 (23.8%)	–
Injection drug use
	Yes	13/16 (81.2%)	<.001 ^b	<.001	0/7 (0%)	.138^a
	No	4/253 (1.6%)	0.774	227.00	35/145 (24.1%)	–
History of genital ulcers
	Yes	2/28 (7.1%)	.695^b		7/15 (46.7%)	.045 ^b
	No	15/239 (6.3%)	–		28/138 (20.3%)	0.187

95% CI: 95% confidence interval, OR: odd-ratio
^aChi square tests and ^b Fisher exact tests were performed with Cramers’ V as effect size
^cNo statistically significant association between HCV or HSV-2 and socio-economic status, condom use, same-sex sexual activities, and number of sexual partners lifetime (p > .05). No inferential statistics were performed on HIV and syphilis because of the low prevalence rate of infected people living in detention
Significant p-values and associated prevalence rates are highlighted in bold
^dMultiple logistic stepwise regressions with HCV and HSV-2 as dependent variables were performed. p-values of Wald chi-square and odd-ratio with the second category of each variable being the reference category are reported

ISSN: 1471-2334