Table 2 Results of multivariate analyses for the odds of fatality among 52,131 vehicles involved in collisions between 2001 and 2006 on Ontario’s 400-series highways
Risk factor | AOR* | 95%CI | |
|---|---|---|---|
Highway | |||
401 | 1.00 | ref | |
400 | 0.97 | 0.67 - 1.39 | |
402 | 0.44 | 0.20 - 0.99 | |
403 | 0.48 | 0.29 - 0.80 | |
404 | 0.20 | 0.10 - 0.41 | |
405 | 6.89 | 2.16 - 21.98 | |
406 | 0.78 | 0.36 - 1.67 | |
409 | 0.20 | 0.03 - 1.49 | |
410 | 0.33 | 0.14 - 0.78 | |
416 | 0.25 | 0.08 - 0.70 | |
417 | 0.83 | 0.44 - 1.51 | |
420 | 0.68 | 0.09 - 5.21 | |
427 | 0.75 | 0.36 - 1.65 | |
Season | |||
Winter | 1.00 | ref | |
Spring | 1.23 | 0.84 - 1.82 | |
Summer | 1.58 | 1.08 - 2.29 | |
Fall | 1.62 | 0.71 - 1.54 | |
Day of the Week | |||
Sunday | 1.00 | ref | |
Monday | 1.06 | 0.66 - 1.70 | |
Tuesday | 0.77 | 0.46 - 1.25 | |
Wednesday | 0.97 | 0.61 - 1.55 | |
Thursday | 1.00 | 0.64 - 1.57 | |
Friday | 1.28 | 0.79 - 2.10 | |
Saturday | 1.01 | 0.64 - 1.57 | |
Time Period | |||
Evening (8 pm-12 am) | 1.00 | ref | |
Night (12 am-4 am) | 1.67 | 1.07 - 2.59 | |
Early Morning (4 am-8 am) | 0.63 | 0.39 - 1.00 | |
Morning (8 am-12 pm) | 0.55 | 0.36 - 0.85 | |
Afternoon (12 pm-4 pm) | 0.63 | 0.38 - 1.04 | |
Early Evening (4 pm-8 pm) | 0.69 | 0.45 - 1.05 | |
Sex | |||
Male | 1.00 | ref | |
Female | 0.84 | 0.76 - 0.91 | |
Age Group | |||
Adolescence | 1.00 | ref | |
Early Adulthood | 1.52 | 1.01 - 2.29 | |
Middle Adulthood | 1.82 | 1.20 - 2.75 | |
Late Adulthood | 2.36 | 1.46 - 4.06 | |
Environment | |||
Clear | 1.00 | ref | |
Rain | 0.76 | 0.49 - 1.15 | |
Snow | 0.93 | 0.57 - 1.51 | |
Frozen Rain | 1.49 | 0.66 - 3.39 | |
Drifting Snow | 7.39 | 2.21 - 24.78 | |
Wind | 5.00 | 1.34 - 18.73 | |
Fog | 2.78 | 1.11 - 6.96 | |
Other | 1.72 | 0.34 - 8.58 | |
Road Characteristic | |||
Undivided 1-Way | 1.00 | ref | |
Undivided 2-Way | 3.74 | 1.37 - 10.28 | |
Dividing Barrier | 1.28 | 0.54 - 3.03 | |
Divided | 4.76 | 1.92 - 11.59 | |
Ramp Road | 0.52 | 0.20 - 1.36 | |
Collector | 0.27 | 0.09 - 0.79 | |
Expressway | 0.44 | 0.17 - 1.26 | |
Transfer | 0.37 | 0.04 - 3.13 | |