Total no of collisions‡ | No of collisions pre-PCS | Intersection-months pre-PCS | Pre-PCS collision incidence rate/1000 intersection-months | No of collisions post-PCS | Intersection-months post-PCS | Post-PCS collision incidence rate/1000 intersection-months | Crude RR* | Modelled RR* | Modelled 95% CI† | |
Total | 9262 | 7522 | 184 682.14 | 40.73 (39.62, 41.66) | 1740 | 42 132.47 | 41.30 (39.40, 43.29) | 1.014 | 1.014 | 0.958 to 1.073 |
Age, years | ||||||||||
Children, 0–15 | 1089 | 899 | 184 682.14 | 4.87 (4.56, 5.20) | 190 | 42 132.47 | 4.51 (3.91, 5.20) | 0.926 | 0.941 | 0.792 to 1.119 |
Adults, 16–59 | 6482 | 5227 | 184 682.14 | 28.30 (27.55, 29.08) | 1255 | 42 132.47 | 29.79 (28.18, 31.48) | 1.053 | 1.038 | 0.972 to 1.108 |
Older people, 60+ | 1465 | 1203 | 184 682.14 | 6.51 (6.16, 6.89) | 262 | 42 132.47 | 6.22 (5.51, 7.02) | 0.955 | 0.967 | 0.844 to 1.108 |
Injury severity | ||||||||||
No injury | 399 | 335 | 184 682.14 | 1.81 (1.63, 2.02) | 64 | 42 132.47 | 1.52 (1.19, 1.94) | 0.840 | 0.838 | 0.626 to 1.121 |
Minor/minimal | 7949 | 6440 | 184 682.14 | 34.87 (34.03, 35.73) | 1509 | 42 132.47 | 35.82 (34.05, 37.67) | 1.027 | 1.026 | 0.965 to 1.090 |
Major | 809 | 661 | 184 682.14 | 3.58 (3.32, 3.86) | 148 | 42 132.47 | 3.51 (2.99, 4.13) | 0.980 | 0.984 | 0.826 to 1.173 |
Fatal | 105 | 86 | 184 682.14 | 0.47 (0.38, 0.58) | 19 | 42 132.47 | 0.45 (0.29, 0.71) | 0.957 | 0.968 | 0.594 to 1.578 |
Location | ||||||||||
Pre-amalgamated Toronto | 3739 | 2939 | 55 420.79 | 53.03 (51.15, 54.98) | 800 | 16 154.67 | 49.52 (46.21, 53.07) | 0.934 | 0.943 | 0.866 to 1.027 |
Inner suburbs | 5523 | 4583 | 129 261.35 | 35.46 (34.44, 36.50) | 940 | 25 977.80 | 36.18 (33.94, 38.57) | 1.020 | 1.042 | 0.967 to 1.122 |