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Table 6 Bivariate and multivariate analyses of factors affecting injury severity levels of road traffic collission victims

From: Injury severity levels and associated factors among road traffic collision victims referred to emergency departments of selected public hospitals in Addis Ababa, Ethiopia: the study based on the Haddon matrix

Variable Categories Injury severity level COR 95% CI AOR 95% CI
Severe Not severe
Victims type Pedestrian 52 92 1  
Driver 17 22 1.36 (0.67–2.80) 1.11 (0.53–2.32)
Motorist/Motor occupant 20 19 1.86 (0.91–3.80) 1.56 (0.74–3.26)
Vehicle occupant 43 98 0.78 (0.47–1.27) 0.42 (0.20–0.88)*
Driver used alcohol Yes 19 15 2.64 (1.23–5.64)* 2.1 (0.93–4.71)
No 48 100 1 1
Motorist/motorbike occupant used helmet Yes 5 12 1 1
No 15 7 5.14 (1.30–20.36) 4.7 (1.04–21.09) **
Presence of multiple injuries Yes 107 114 4.4 (2.65–7.29) 3.88 (2.26–6.65) ***
No 25 117 1 1
Vehicle type light vehicle 67 148 1 1
medium heavy vehicle 44 63 1.54 (0.95–2.50) 1.62 (0.96–2.75)
large heavy vehicle 21 20 2.31 (1.18–4.56) 2.14 (1.01–4.52) *
Crash type Crash with Pedestrian 52 92 1 1
Two vehicle collision 16 55 0.51 (0.27–0.99) 0.48 (0.24–0.93)*
Over turning 38 57 1.18 (0.69–2.01) 1.38 (0.65–2.92)
Animate/inanimate 14 16 1.55 (0.70–3.42) 1.34 (0.59–3.01)
Falling from moving vehicle 12 11 1.93 (0.80–4.68) 1.45 (0.58–3.64)
Lighting Condition Daylight 88 172 1 1
Dusk or dawn 13 27 0.94 (0.46–1.91) 0.99 (0.45–2.17)
Dark 31 32 1.89 (1.08–3.30) 1.93 (1.01–3.65) *
Place of accident Urban 55 140 1 1
Cross city/rural 77 91 2.15 (1.39–3.33) 1.95 (1.18–3.24) **
Traffic signals or safety tools available Yes 32 85 0.59 (0.36–0.95) 0.58 (0.35–0.96) *
No 93 137 1 1
Persons extricating the victim from scene Bystanders 107 159 1 1
Police 17 47 0.54 (0.29–0.99) 0.47 (0.24–0.94) *
Healthcare professionals 8 25 0.48 (0.21–1.09) 0.33 (0.13–0.83) *
Received pre-hospital care Yes 14 38 1  
No 118 193 1.66 (0.86–3.19) 1.23 (0.61–2.51)
Traffic police control at the scene Yes 22 77 0.40 (0.23–0.68) 0.49 (0.27–0.88)*
No 110 154 1 1
Vehicle occupant seating position Front seat 12 40 0.86 (0.35–2.08) 1.21 (0.44–3.28)
At the back of truck 10 9 3.17 (1.01–9.41) 3.9 (1.18–12.080)*
Rear seat 6 10 1.71 (0.53–5.58) 1.95 (0.53–7.23)
Middle seat 14 40 1 1
  1. *P < 0.05, **P < 0.01, ***P < 0.001