Table 4 (a) Proportions and relative risks for all exposed occupants, and (b) raw counts, weighted counts, proportions and relative risks for occupants whose injuries were likely sustained inside the vehicle. The top table summarizes the proportion (95th percentile confidence interval) of each injury type experienced in rollover crashes (top row) and the relative risk (95th percentile confidence interval) of experiencing each injury type in a rollover crash compared to a non-rollover crash for all occupants (first row of relative risks) and for subgroups of female/male, belted/unbelted, and ejected/not ejected occupants (bottom pairs of rows of relative risks). The bottom table also includes the raw and weighted counts for the sub-analysis of occupants whose injuries were likely sustained inside the vehicle

a) All Exposed Occupants

Injury Group

VI

CI

VCI

All-VI

All-CI

All-Injuries

Vertebral Injuries only

Cord injuries

Separate VI and CI

(VI + VCI)

(CI + VCI)

(VI + CI + VCI)

Proportion in rollover (%)

28.8%

(20.0–37.6)

21.0%

(14.4–27.6)

27.5%

(5.8–58.3)

28.8%

(20.1–37.4)

22.7%

(10.2–35.2)

28.1%

(20.4–35.9)

Relative Risks

All Occupants

5.17

(3.43–7.81)

3.40

(2.28–5.09)

4.85

(0.86–27.35)

5.16

(3.44–7.74)

3.75

(1.82–7.74)

5.00

(3.46–7.23)

 Females

5.52

(2.38–12.80)

3.69

(1.57–8.64)

2.24

(0.32–15.44)

5.48

(2.37–12.65)

3.47

(1.48–8.13)

5.36

(2.38–12.07)

 Males

5.03

(3.71–6.83)

3.03

(1.75–5.25)

4.58

(0.68–30.87)

5.01

(3.63–6.91)

3.47

(1.44–8.35)

4.78

(3.51–6.49)

 Belted

3.75

(2.02–6.96)

3.88

(2.33–6.46)

8.56

(1.54–47.73)

3.82

(2.05–7.11)

4.61

(2.16–9.85)

3.83

(2.12–6.91)

 Unbelted

4.74

(2.15–10.49)

3.60

(0.99–13.11)

8.15

(0.93–71.38)

4.81

(2.20–10.50)

4.49

(1.43–14.09)

4.72

(2.13–10.48)

 Ejected

0.89

(0.53–1.51)*

0.28

(0.09–0.89)*

0.06

(0.01–0.58)*

0.70

(0.40–1.22)*

0.14

(0.03–0.64)*

0.66

(0.38–1.13)*

 Not Ejected

3.93

(2.34–6.59)

3.07

(1.88–5.01)

11.31

(2.13–59.90)

4.02

(2.41–6.71)

4.01

(2.02–7.95)

3.94

(2.45–6.33)

 Fatal

0.85

(0.66–1.10)*

0.24

(0.12–0.48)*

0.15

(0.02–1.09)*

0.83

(0.64–1.09)*

0.23

(0.12–0.47)*

0.69

(0.54–0.90)*

 Not Fatal

5.41

(3.38–8.68)

7.06

(3.71–13.44)

5.77

(0.84–39.47)

5.42

(3.43–8.57)

6.53

(2.29–18.58)

5.50

(3.55–8.52)

b) Occupants Whose Injuries Likely Occurred Inside the Vehicle

Injury Group

VI

CI

VCI

All-VI

All-CI

All-Injuries

Vertebral Injuries only

Cord injuries

Separate VI and CI

(VI + VCI)

(CI + VCI)

(VI + CI + VCI)

 Raw counts

147

15

7

154

22

169

 Weighted data

16,417

(7,230 − 25,603)

747

(58 − 1,435)

549

(0–1,384)

16,965

(7,509 − 26,422)

1,296

(0–2,620)

17,712

(8,044 − 27,380)

 Proportion in rollover (%)

16.7%

(10.3–23.1)

8.0%

(0.1–15.8)

17.1%

(0.0–45.9)

16.7%

(10.3–23.1)

10.3%

(0.0–21.3)

16.0%

(10.6–21.3)

 Relative Risks

 All Occupants

4.58

(2.87–7.31)

1.98

(0.67–5.82)

4.71

(0.65–34.34)

4.58

(2.86–7.36)

2.62

(0.75–9.12)

4.34

(2.85–6.62)