Table 3.

Multivariate logistic regression models for predicting major thoracoabdominal injury at low, medium and high ΔV.

	OR (95% CI)	P Value
Low ΔV (<25kmph)
Star Rating
5	Referent
4	1.2 (0.8 – 2.0)	0.41
3	1.3 (0.8 – 2.0)	0.33
2	0.9 (0.3 – 2.8)	0.81
1	1.2 (0.5 – 3.1)	0.70
Age	1.04 (1.03 – 1.05)	<0.001
Seatbelt use	0.3 (0.2 – 0.5)	<0.001
Medium ΔV (≥25kmph; <40kmph)
Star Rating
5	Referent
4	1.8 (1.1 – 2.9)	0.01
3	2.0 (1.3 – 3.1)	<0.01
2	1.8 (0.8 – 4.0)	0.13
1	1.3 (0.6 – 2.7)	0.47
Age	1.03 (1.02 – 1.04)	<0.001
Seatbelt use	0.45 (0.3 – 0.6)	<0.001
High ΔV (≥40kmph)
Star Rating
5	Star Rating
4	2.0 (1.2 – 3.3)	0.01
3	2.1 (1.3 – 3.4)	<0.01
2	2.3 (1.0 – 5.4)	0.06
1	2.3 (1.1 – 4.9)	0.03
Age	1.01 (1.00 – 1.02)	0.15
Seatbelt use	0.73 (0.5 – 1.1)	0.09

ΔV = Change in velocity (crash severity).