Skip to main content

Table 2 PMVC Incidence Rate Ratios (IRR) and 95% Confidence Intervals for Intervention and Comparator Streets, Stratified by Collision Characteristics

From: Effect of reducing the posted speed limit to 30 km per hour on pedestrian motor vehicle collisions in Toronto, Canada - a quasi experimental, pre-post study

CharacteristicsIntervention Streets
(n = 382 PMVC)
Comparator Streets
(n = 292 PMVC)
Total n (%)IRRa (95% CI)Total n (%)IRRa (95% CI)
Ages
 Child (0 to 15)50 (13.1%)0.72 (0.41–1.29)43 (14.7%)0.79 (0.40–1.57)
 Adult (16 to 59)235 (61.5%)0.71 (0.55–0.92)187 (64.0%)0.99 (0.71–1.38)
 Older Adult (Over 60)89 (23.3%)0.79 (0.51–1.23)60 (20.5%)0.87 (0.51–1.49)
 Unknown8 (2.1%)2 (0.68%)
Injury Severity
 None18 (4.7%)0.51 (0.18–1.45)10 (3.4%)0.25 (0.05–1.32)
 Minimal and Minor330 (86.4%)0.78 (0.62–0.98)238 (81.5%)1.03 (0.75–1.42)
 Major and Fatal34 (8.9%)0.33 (0.13–0.85)44 (15.1%)0.69 (0.37–1.31)
Location
 Intersection310 (81.2%)0.62 (0.48–0.79)255 (87.3%)0.92 (0.68–1.24)
 Midblock64 (16.7%)1.01 (0.64–1.60)31 (10.6%)0.72 (0.33–1.59)
 Other8 (2.1%)6 (2.1%)
Traffic Controls
 No Control171 (44.8%)0.63 (0.45–0.87)73 (25.0%)0.87 (0.49–1.54)
 Any Traffic Controls210 (55.0%)0.78 (0.60–1.03)219 (75.0%)0.95 (0.67–1.33)
 Unknown1 (0.2%)  
Visibility
 Clear319 (83.5%)0.69 (0.54–0.87)257 (88.0%)0.98 (0.71–1.34)
 Rain, Snow or Other63 (16.5%)0.88 (0.54–1.41)35 (12.0%)0.66 (0.33–1.36)
Lighting
 Daylight258 (67.5%)0.69 (0.53–0.90)181 (62.0%)0.83 (0.57–1.21)
 Dawn, Dusk & Dark124 (32.5%)0.77 (0.53–1.12)111 (38.0%)1.13 (0.74–1.72)
Road Surface
 Dry286 (74.9%)0.73 (0.56–0.94)233 (80.0%)1.01 (0.72–1.40)
 Other96 (25.1%)0.68 (0.46–1.00)59 (20.0%)0.68 (0.40–1.16)
  1. aadjusted for season
  2. IRR and 95% CI significant at 0.05 are bolded