Rates of contusions, sprains, or strains of the neck 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 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 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 | 2.33 | 2.40 | 2.25 | 1.80 | 1.88 | 1.71 | a | a | a |
| 1994 | 3.34 | 3.42 | 3.26 | 1.34 | 1.40 | 1.28 | a | a | a |
| 1995 | 3.80 | 3.87 | 3.72 | 1.29 | 1.35 | 1.22 | 5.35 | 5.45 | 5.25 |
| 1996 | 1.82 | 1.88 | 1.76 | 1.32 | 1.40 | 1.26 | 5.04 | 5.14 | 4.94 |
| 1997 | 1.68 | 1.74 | 1.62 | 1.14 | 1.19 | 1.08 | 4.25 | 4.34 | 4.16 |
| 1998 | 2.92 | 2.99 | 2.85 | 2.31 | 2.40 | 2.23 | 6.38 | 6.50 | 6.26 |
| 1999 | 2.29 | 2.22 | 2.35 | 1.51 | 1.58 | 1.45 | 5.43 | 5.53 | 5.32 |