Table 4: Factors determining SI and BBFs exposure of HCWs in eastern Ethiopia, 2014
Parameter		Adjusted OR (95% CI)
Working area (region)	Harari	0.44 (0.26 to 0.75)
	East Harargae	0.61 (0.40 to 0.94)
	Dire Dawa	0.75 (0.45 to 1.26)
	West Hararghae	1
Sex	Male	0.56 (0.44 to 0.91)
	Female	1
Educational level	Diploma	3.60 (0.80 to 16.18)
	First degree	2.86 (0.63 to 12.88)
	Others	1
Professional category	Medical Doctor	0.24 (0.05 to 1.09)
	HO	0.30 (0.09 to 1.03)
	Nurse	0.19 (0.06 to 0.64)
	Midwifery	0.28 (0.07 to 1.12)
	Medical Lab	0.57 (0.03 to 12.96)
	Others	1
Work Unit	OPD	0.69 (0.32 to 1.48)
	Inpatient	1.19 (0.54 to 2.62)
	Lab	0.16 (0.01 to 3.30)
	Injection and dressing	1.77 (0.54 to 5.81)
	Emergency	1.16 (0.52 to 2.61)
	MCH	0.69 (0.32 to 1.48)
	Other units	1
Age (yrs)	20–29	1.80 (0.34 to 9.47)
	30–39	1.79 (0.34 to 9.38)
	40–49	1.39 (0.35 to 5.54)
	50–60	1
Service length (yrs)	1–4	0.99 (0.17 to 5.83)
	5–9	1.24 (0.22 to 7.04)
	10–19	1.52 (0.27 to 8.52)
	20–29	1.15 (0.26 to 5.09)
	30–39	1