Table 2.

Bivariate analysis of associated risk factors for HBV infection in Mekelle among HIV positive individuals

Variables	HBV sero status
	Total = 508	Yes = 30	No = 478	COR (95 % CI)	P value
	Total n (%)	+ve N (%)	−ve N (%)
Blood transfusion
No	467 (91.9)	27 (5.8)	440 (94.2)	1
Yes	41 (8.1)	3 (7.3)	38 (92.7)	1.3 (0.4–4.4)	0.690
Unsafe injection
No	475 (83.5)	26 (5.5)	449 (94.5)	1
Yes	33 (6.5)	4 (12.1)	29 (87.9)	2.4 (0.8–7.3)	0.128*
Multiple sexual partners
No	482 (94.9)	25 (5.2)	457 (94.8)	1
Yes	26 (5.1)	5 (19.2)	21 (80.8)	4.4 (1.5–12.5)	0.006*
Surgical history
No	408 (80.3)	20 (4.9)	388 (95.1)	1
Yes	100 (19.7)	10 (10)	90 (90)	2.2 (1.0–4.8)	0.058*
Tooth extraction
No	319 (62.8)	20 (6.3)	299 (93.7)	1
Yes	189 (37.2)	10 (5.3)	179 (94.7)	0.8 (0.4–1.8)	0.651
Abortion
No	475 (93.5)	29 (6.1)	446 (93.9)	1
Yes	33 (6.5)	1 (3)	32 (97.0)	0.5 (0.1–3.6)	0.478
Tattooing
No	447 (88)	27 (6)	420 (94)	1
Yes	61 (12)	3 (4.9)	58 (95.1)	0.8 (0.2–2.7)	0.728
Family having liver disease
No	468 (92)	28 (6)	440 (94)	1
Yes	40 (7.9)	2 (5)	38 (95)	0.8 (0.2–3.6)	0.800
CD4 count
<200 cells/μl	85 (16.5)	9 (10.6)	76 (89.4.)	3.9 (1.3–12.1)	0.018*
200–350 cells/μl	118 (23.2)	7 (5.9)	111 (94.1)	2.1 (0.6–6.7)	0.221
351–499 cells/μl	135 (26.6)	9 (6.7)	126 (93.3)	2.4 (0.8–7.2)	0.133*
≧500 cells/μl	170 (33.5)	5 (2.9)	165 (97.1)	1
ART status
Pre ART	65 (12.8)	2 (3.1)	63 (96.9)	1
ART	443 (87.2)	28 (6.3)	415 (93.7)	2.1 (0.5–9.1)	0.311
ART drugs
AZT,3T, Nuv	106 (24.5)	7 (6.6)	99 (93.4)	1.2 (0.5–3.4)	0.678
AZT,3T, Evf	58 (13.4)	6 (10.3)	52 (89.7)	2.0 (0.7–6.0)	0.200
TDF,3T, Nuv	101 (23.4)	6 (5.9)	95 (94.1)	1.1 (0.4–3.2)	0.849
TDF,3T, EFV	167 (38.7)	9 (5.4)	158 (94.6)	1

COR crude odds ratio

* Statistically significant at P < 0.2