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Table 5 Factors associated with head injuries in trauma patients, in univariate and multivariate analysis

From: Effect of wearing a helmet on the occurrence of head injuries in motorcycle riders in Benin: a case-control study

Variables OR (IC à 95%) ORaj (IC à 95%)
Helmet use
Yes 1 1
No 4.0 (2.7–6.0) *** 3.8 (2.5–5.7) ***
Fatigue/drowsiness during the crash
No 1 1
Yes 1.9 (1.2–3.1) ** 1.9 (1.2–3.1) **
Medical history
Yes 1 1
No 2.0 (1.2–3.1) ** 2.0 (1.2–3.3) **
Sex
Female 1  
Male 1.8 (1.0–3.2) **  
Telephone use during the crash
No 1  
Yes 4.1 (1.2–13.8) **  
Antagonist
Moving vehicles 1  
No antagonist 1.9 (1.2–2.9) **  
Stationary vehicles or obstacles 1.8 (1.0–3.7) *  
Pedestrians, animals or moving objects 1.6 (0.8–3.1)  
Time of day
Day 1  
Dusk 1.2 (0.7–1.9)  
Dawn 1.2 (0.6–2.3)  
Night 1.6 (1.1–2.3) **  
Visibility
Acceptable 1  
Good 1.6 (1.00–2.5) *  
Poor 1.9 (1.3–2.9) **  
  1. *p < 0.1; **p < 0.05; ***p < 0.001