Colorado |
|
|
|
|
|
|
Trend before mid-2009 |
−0.19 (0.08) |
−2.40 |
0.0227 |
0.09 (0.12) |
0.74 |
0.4654 |
Change in trend after mid-2009 |
2.16 (0.45) |
4.76 |
0.0001 |
0.06 (0.97) |
0.07 |
0.9476 |
Proportion of male drivers |
−0.11 (0.09) |
−1.18 |
0.2484 |
−0.15 (0.22) |
−0.68 |
0.5002 |
Proportion of drivers 21–24 years old |
−0.12 (0.10) |
−1.22 |
0.2328 |
0.06 (0.23) |
0.27 |
0.7889 |
Proportion tested for drugs or alcohol |
0.11 (0.04) |
2.99 |
0.0056 |
0.39 (0.10) |
4.03 |
0.0004 |
34 NMMS |
|
|
|
|
|
|
Trend before mid-2009 |
0.02 (0.05) |
0.35 |
0.7304 |
−0.06 (0.05) |
−1.12 |
0.2705 |
Change in trend after mid-2009 |
0.11 (0.18) |
0.61 |
0.5447 |
−0.01 (0.29) |
−0.05 |
0.9619 |
Proportion of male drivers |
−0.10 (0.10) |
−1.05 |
0.3042 |
0.39 (0.21) |
1.88 |
0.0693 |
Proportion of drivers 21–24 years old |
−0.02 (0.14) |
−0.15 |
0.8810 |
0.53 (0.28) |
1.90 |
0.0667 |
Proportion tested for drugs or alcohol |
0.13 (0.03) |
4.59 |
0.0001 |
0.23 (0.09) |
2.65 |
0.0128 |
Colorado vs. 34 NMMS |
|
|
|
|
|
|
Difference in trend before mid-2009 |
−0.22 (0.06) |
−3.65 |
0.0005 |
0.17 (0.20) |
0.85 |
0.3972 |
Difference in change in trend after mid-2009 |
2.06 (0.48) |
4.30 |
0.0001 |
0.49 (1.64) |
0.30 |
0.7658 |
Proportion of male drivers |
−0.10 (0.06) |
−1.69 |
0.0956 |
0.33 (0.14) |
2.35 |
0.0217 |
Proportion of drivers 21–24 years old |
−0.09 (0.08) |
−1.17 |
0.2466 |
0.45 (0.20) |
2.30 |
0.0245 |
Proportion tested for drugs or alcohol |
0.13 (0.02) |
5.83 |
0.0001 |
0.22 (0.06) |
3.60 |
0.0006 |