Table 2 Estimated Odds Ratios (OR) and 95% confidence intervals (CI) from a multivariable logistic regression of predictors of in-hospital mortality among trauma patients from King Abdulaziz Medical City (KAMC) and the National Trauma Data Bank (NTDB)

Age category

0-14

Reference

Reference

15-25

1.1 (1.0-1.2)

1.1 (1.0-1.2)

26-45

1.2 (1.1-1.3)

1.2 (1.1-1.3)

46-64

2.2 (2.0-2.4)

2.2 (2.0-2.4)

≥65

9.2 (8.4-10.0)

9.0 (8.1-9.9)

Male

1.1 (1.0-1.1)

1.1 (1.0-1.1)

Role

Occupant

Reference

Reference

Motorcycle

0.9 (0.8-1.0)

0.9 (0.9-1.0)

Pedestrians

1.4 (1.3-1.5)

1.5 (1.1-1.5)

Bicyclists

1.0 (0.8-1.2)

1.2 (1.0-1.4)

T-RTS

0.6 (0.6-0.7)

0.6 (0.6-0.6)

Head injury

1.1 (1.1-1.2)

1.2 (1.2-1.3)

Surgery

1.6 (1.5-1.6)

2.0 (1.9-2.1)

Hypotension

3.0 (2.8-3.1)

1.8 (1.7-1.9)

ISS category

(0–9)

Reference

Reference

(10–24)

2.5 (2.3-2.7)

3.2 (2.9-3.5)

(25–44)

4.6 (4.2-4.9)

7.3 (6.6-8.0)

(45–75)

15.5 (14.5-16.6)

26.9 (24.5-29.5)

KAMC vs. NTDB

2.9 (2.6-3.3)

2.3 (2.0-2.7)