Table 2.

Likelihood of ED-reported TBIs associated with snow sports among children and adolescents

Season	Children (aged 4–12 years)		Adolescents (aged 13–17 years)
	RR	95% CI	RR	95% CI
1996–1997	1.00	Reference	1.00	Reference
1997–1998	1.02	0.74 to 1.09	0.53	0.25 to 0.59
1998–1999	2.55	2.23 to 3.70	1.74	1.41 to 3.18
1999–2000	1.87	1.81 to 2.10	2.35	1.72 to 5.12
2000–2001	2.36	1.99 to 3.70	2.82	2.22 to 5.48
2001–2002	2.92	2.29 to 5.24	2.80	2.22 to 5.36
2002–2003	2.28	2.24 to 2.42	1.99	1.52 to 4.04
2003–2004	2.40	2.18 to 3.21	2.87	2.51 to 4.50
2004–2005	1.89	1.64 to 2.83	2.05	1.50 to 4.51
2005–2006	1.91	1.61 to 3.02	3.12	2.89 to 4.15
2006–2007	1.50	1.36 to 2.03	2.27	1.64 to 5.03
2007–2008	1.98	1.66 to 3.18	2.57	1.97 to 5.23
2008–2009	1.61	1.37 to 2.52	2.83	2.40 to 4.76
2009–2010	2.11	1.71 to 3.58	3.50	2.94 to 5.99

ED, emergency department; RR, relative risk; TBI, traumatic brain injury.