Table 3.

Rollover Rates and Adjusted Odds Ratios

Characteristics	Rate	Adjusted OR (95% CI)
Model Year
M/Y 2001	25.3	Reference
M/Y 2002	18.8	0.72 (0.52–1.00)
M/Y 2003	19.2	0.84 (0.60–1.19)
M/Y 2004	19.3	0.90 (0.69–1.17)
M/Y 2005	14.9	0.78 (0.49–1.25)
M/Y 2006	11.5	0.87 (0.39–1.91)
SUV Size
Small	20.7	1.33 (1.03–1.71)
Midsize	21.4	1.37 (1.06–1.79)
Large	16.4	Reference
ESC Availability
Standard (Std.)	8.1	0.33 (0.20–0.55)
Optional (Opt.)	15.1	0.67 (0.46–0.96)
Not available	22.6	Reference
Wheel Drive
2WD	22.6	Reference
4WD	18.8	0.88 (0.68–1.15)
Driver Age
< 25 years	29.6	1.67 (1.31–2.11)
25+ years	17.8	Reference
Driver Gender
Male	21.5	1.04 (0.84–1.30)
Female	19.1	Reference
Driver Alcohol Use
Yes	39.1	2.70 (1.77–4.12)
No	18.9	Reference
SSF
< 1.20	22.0	Reference
1.20+	8.4	0.31 (0.20–0.48)