Table 7

Association of mortality with select variables using multiple logistic regression

Parameter

Outcome

Referent

Odds ratio

95% confidence interval

P

Upper

Lower

Sex

Female

Male

1.50

0.35

6.55

0.6

Helmet use

Not Worn

Worn

0.60

0.19

1.92

0.4

Position

Pillion

Rider

0.86

0.28

2.67

0.8

Collision type

Others including pedestrians

Single vehicle

2.07

0.65

6.60

0.2

Car

Single vehicle

0.75

0.17

3.22

0.7

Bus, truck, van

Single vehicle

3.43

1.25

9.45

0.02

MAIS – Head*

Continuous, 0 – 6

2.03

1.58

2.61

< 0.01

MAIS – Chest*

Continuous, 0 – 6

2.03

1.05

3.93

0.04

MAIS – Abdomen*

Continuous, 0 – 6

3.72

1.80

7.86

< 0.01

Age

Continuous

1.02

0.98

1.05

0.3

*MAIS is the highest AIS severity by body region

Fitzharris et al. BMC Public Health 2009 9:11   doi:10.1186/1471-2458-9-11