Table 6.

Association of fatal RTCs with selected risk factors; multivariable-adjusted odds ratios (OR) from the binary logistic regression

Variables	Outcome		Crude OR	Adjusted OR
	Fatal number (%)	Nonfatal number (%)
Place
Adama	128 (32.9)	849 (44)	1 (reference)	1 (reference)
Mojo	87 (22.4)	307 (15.9)	1.9 [1.4-2.5]**	1.36[0.97, 1.9]
Bishoftu	84 (21.6)	301 (19.8)	1.5 [1.03-1.9]*	1.26[0.9, 1.77]
Dukem	64 (16.5)	269 (13.9)	1.6[1.1-2.2]*	1.64[1.1, 2.3]*
Gelan	26 (6.7)	123 (6.4)	1.4 [0.9-2.2]	1.6 [0.97-2.6]
Year
July 2007 to June 2008	42 (10.8)	215 (11.2)	1 (reference)	1 (reference)
July 2008 to June 2009	71 (18.3)	421 (21.9)	0.8[0.6-1.3]	1.08[0.7-1.7]
July 2008 to June 2010	89 (22.9)	354 (18.4)	1.3[0.9-1.9]	1.75[1.1-2.7]*
July 2010 to June 2011	91 (23.4)	393 (20.5)	1.2[0.8-1.8]	1.5[0.98-2.3]
July 2011 to June 2012	96 (24.7)	540 (28)	0.91[0.6-1.4]	1.27[0.9-1.9]
Light condition
Dark (midnight)	46 (12)	96 (5)	2.8[1.9-4]**	2.5[1.7-3.7]**
Dark (early night/morning)	50 (13.1)	158 (8.2)	1.8[1.3-2.6]**	1.67[1.2-2.4]*
Day light	278 (74.9)	1651 (86.8)	1 (reference)	1 (reference)
Sex
Female	5 (1.3)	10 (0.5)	2.5[0.9-7.4]	4.74[1.5-15]*
Male	379 (98.7)	1913 (99.5)	(reference)	1 (reference)
Cause of collision
Careless driving	51 (13.1)	522 (27.1)	1.87[0.99-3.5]	1.78[0.9-3.4]
Driving above speed limit	185 (47.6)	651 (33.8)	5.4[3–9.7]**	5.3[2.9-9.6]**
Failing to give priority	101 (26)	406 (21.1)	4.76[2.6-8.6]**	5 [2.3-9.3] **
Vehicle defect	10 (2.6)	10 (0.5)	19.2[6.8-54]**	19[6.4-56]**
Road defect	1 (0.3)	4 (0.2)	4.78[0.5-46]	2.9[0.3-29]
Pedestrian error	1 (0.3)	6 (0.3)	3.19[0.36-28.5]	3.9[0.4-35]
Unknown cause	22 (5.7)	45 (2.3)	′9.36[4.4-20]**	8.3[3.6-18.8]**
Others***	5 (1.3)	33 (1.7)	2.9[0.97-8.7]	2.3[0.8-7.2]
Following too closely	13 (3.3)	249 (12.9)	1 (reference)	1 (reference)

Overall P value *p <0.05 **p ≤0.001 ***cattle’s, horses running and failing under vehicles.