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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