Table 4

Rates of bony neck injuries (fractures or dislocations) presenting to emergency departments in the United States from 1993 to 1999 for ice hockey, soccer, and American football (expressed as injuries for every 10 000 participants)

Year	Hockey			Soccer			Football
Year	Rate	95% CI upper limit	95% CI lower limit	Rate	95% CI upper limit	95% CI lower limit	Rate	95% CI upper limit	95% CI lower limit
a, Estimates not available for this year.
1993	0.0996	0.115	0.085	0	0	0	a	a	a
1994	0	0	0	0	0	0	a	a	a
1995	0	0	0	0.014	0.021	0.007	0.094	0.107	0.08
1996	0.081	0.093	0.068	0.025	0.033	0.016	0.077	0.089	0.065
1997	0	0	0	0	0	0	0.086	0.098	0.073
1998	0	0	0	0.064	0.077	0.05	0.105	0.154	0.056
1999	0.375	0.384	0.33	0	0	0	0.057	0.068	0.046