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Table 2 Frequency and adjusted incidence rate ratios with 95 % confidence intervals of PMVC by implementation and season and crossing guard location characteristics

From: Do school crossing guards make crossing roads safer? A quasi-experimental study of pedestrian-motor vehicle collisions in Toronto, Canada

Variable N (%) Adjusted IRR (95 % CI)
Collision characteristics:   
School crossing guard implementation   
 Pre implementation 176 1.00
 Post implementation 84 1.02 (0.74, 1.40)
Season   
 Non-winter 102 (39.2 %) 1.00
 Winter 158 (60.8 %) 1.56 (1.15, 2.11)
School Crossing guard location characteristics:   
Road type   
Intersections:   
Major/major 15 (26 %) 1.00
Local/local 7 (12 %) 0.03 (0.01, 0.15)
Major/local 9 (16 %) 0.42 (0.29, 0.62)
Collector/collector 2 (4 %) 0.03 (0.00, 0.29)
Collector/local 19 (33 %) 0.06 (0.03, 0.12)
Midblock locations:   
Collector 6 (10 %) 0.13 (0.06, 0.28)
Neighbourhood age   
 Post 1960 neighbourhood 39 (66 %) 1.00
 Pre 1960 19 (33 %) 0.46 (0.31, 0.69)
Land use mix   
Mean Entropy score 0.71 (SD ± 0.14) 16.11 (5.00, 52.07)
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