Table 5 Multivariate analysis of selected independent variables with Anti-HBc
From: Hepatitis B virus infection among medical waste handlers in Addis Ababa, Ethiopia
Independent variables | N (%) | Anti-HBc n (%) | B | S.E | p-value | Exp(B) | 95% C.I.for EXP(B) | |
|---|---|---|---|---|---|---|---|---|
| Â | Â | Â | Â | Â | Â | Â | Lower | upper |
age | Â | Â | Â | Â | .021 | Â | Â | Â |
30-39 | 38 (30.1) | 16 (42.1) | 20.9 | 1.54 | .999 | 1.14 | .000 | Â |
40-49 | 37 (29.4) | 30 (83.8) | 43.5 | 1.96 | .998 | 7.65 | .000 | Â |
50-59 | 12 (9.5) | 2 (16.7) | 40.1 | 1.96 | .998 | 2.55 | .000 | Â |
sex(male) | 40 (31.7) | 26 (65) | 21.6 | 8.48 | .998 | 2.38 | .000 | Â |
Length of employment | Â | Â | Â | Â | .993 | Â | Â | Â |
6-10 | 33 (26.2) | 15 (45.5) | 0.28 | 1.73 | 1.000 | 1.33 | .000 | Â |
11-15 | 31 (24.6) | 18 (58.1) | 0.36 | 2.45 | 1.000 | 1.44 | .000 | Â |
> 15 | 26 (20.6) | 14 (53.8) | 0.65 | 2.45 | 1.000 | 1.92 | .000 | Â |
Education (primary or less) | 58 (46) | 28 (48.3) | -20.5 | 1.21 | .999 | .000 | .000 | Â |
Splash exposure(yes) | 35 (27.8) | 18 (51.4) | -3.3 | 2.35 | 1.000 | .04 | .000 | Â |
Tattooing (yes) | 21 (16.7) | 2 (9.5) | -18.4 | 8.03 | .998 | .000 | .000 | Â |
Blunt-penetrating injuries (yes) | 25 (19.8) | 15 (60) | 2.1 | 2.37 | 1.000 | 7.91 | .000 | Â |
History of surgery (yes) | 5 (4) | 1 (20) | -17.6 | 6.64 | .998 | .000 | .000 | Â |
No risk factors(yes) | 25 (19.8) | 24 (96) | 37.5 | 1.08 | .997 | 1.91 | .000 | Â |