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

Table 1 Frequency and incidence rate ratios of PMVC for intervention and comparator groups

Models	Covariate	PMVC	Total Km-Month	PMVC per 100 Km-Month	Adjusted IRR^a (95% CI)
Model 1 Intervention Streets	Pre-Speed Limit Reduction	245	12,286	1.99	1
	Post-Speed Limit Reduction	137	9600	1.43	0.72 (0.58–0.89)
	Summer	194	10,970	1.77	1
	Winter	188	10,915	1.72	0.98 (0.79–1.21)
Model 2 Comparator Streets	Pre-Speed Limit Reduction	151	10,428	1.45	1
	Post-Speed Limit Reduction	141	10,437	1.35	0.93 (0.70–1.25)
	Summer	111	10,456	1.06	1
	Winter	181	10,409	1.74	1.64 (1.27–2.12)

ISSN: 1471-2458