Vehicle age | Drivers ages 15–17 | Drivers ages 35–50 | Difference in estimated teenage and middle-aged driver percentages (95% CI) |
---|---|---|---|
N=2420 | N=18 975 | ||
Car | |||
<3 years | 4.8 | 4.7 | 0.1 (−0.8 to 1.0) |
3–5 years | 7.7 | 6.7 | 1.0 (−0.1 to 2.1) |
6–10 years | 21.1 | 13.2 | 7.8 (6.2 to 9.5)* |
11–15 years | 20.0 | 12.4 | 7.7 (6.0 to 9.3)* |
16+ years | 10.0 | 9.6 | 0.4 (−0.9 to 1.7) |
Minivan | |||
<3 years | <0.1 | 0.1 | −0.1 (−0.2 to 0.0)* |
3–5 years | 0.1 | 0.6 | −0.5 (−0.7 to −0.3)* |
6–10 years | 0.7 | 1.5 | −0.8 (−1.1 to −0..4)* |
11–15 years | 0.6 | 1.4 | −0.8 (−1.2 to −0.5)* |
16+ years | 0.3 | 0.6 | −0.3 (−0.5 to −0.0)* |
Pickup | |||
<3 years | 0.7 | 1.9 | −1.1 (−1.5 to −0.7)* |
3–5 years | 2.0 | 3.6 | −1.6 (−2.3 to −1.0)* |
6–10 years | 5.3 | 7.5 | −2.2 (−3.1 to −1.2)* |
11–15 years | 4.3 | 6.0 | −1.6 (−2.5 to −0.7)* |
16+ years | 4.5 | 5.8 | −1.3 (−2.2 to −0.4)* |
SUV | |||
<3 years | 0.5 | 1.3 | −0.9 (−1.2 to −0.6)* |
3–5 years | 2.1 | 2.7 | −0.6 (−1.2 to 0.0) |
6–10 years | 6.9 | 8.2 | −1.4 (−2.5 to −0.3)* |
11–15 years | 5.5 | 6.1 | −0.6 (−1.6 to 0.4) |
16+ years | 1.7 | 2.4 | −0.6 (−1.2 to −0.1)* |
Unknown vehicle type | 0.9 | 3.5 | |
Total | 100 | 100 |
*Difference statistically significant at α=0.05.