Table 2.
Injury Rates by Time in Season and Type of Athlete-Exposure in High School Boys' and Collegiate Men's Lacrossea
| Time in Season |
Event Type |
HS RIO (2008–2009 Through 2013–2014) |
NCAA-ISP (2004–2005 Through 2013–2014) |
||
| Injuries in Sample, No. (%) |
Injuries in Sample, No. (%) |
Athlete- Exposures |
Injury Rate/1000 Athlete-Exposures (95% Confidence Interval) |
||
| Preseason | Practice | 226 (77.9) | 675 (97.4) | 126 686 | 5.33 (4.93, 5.73) |
| Competition | 64 (22.1) | 18 (2.6) | 1458 | 12.35 (6.64, 18.05) | |
| Total | 290 (100.0) | 693 (100.0) | 128 144 | 5.41 (5.01, 5.81) | |
| Regular season | Practice | 312 (28.7) | 438 (39.5) | 179 874 | 2.44 (2.21, 2.66) |
| Competition | 776 (71.3) | 670 (60.5) | 54 750 | 12.24 (11.31, 13.16) | |
| Total | 1088 (100.0) | 1108 (100.0) | 234 625 | 4.72 (4.44, 5.00) | |
| Postseason | Practice | 4 (16.7) | 42 (51.9) | 22 226 | 1.89 (1.32, 2.46) |
| Competition | 20 (83.3) | 39 (48.1) | 5034 | 7.75 (5.32, 10.18) | |
| Total | 24 (100.0) | 81 (100.0) | 27 260 | 2.97 (2.32, 3.62) | |
Abbreviations: HS RIO, High School Reporting Information Online; NCAA-ISP, National Collegiate Athletic Association Injury Surveillance Program.
Excluded 5 injuries reported in HS RIO due to missing data for time in season. Injury rates by time in season could not be calculated for high school as athlete-exposures were not stratified by time in season. The athlete-exposures may not sum to totals due to rounding error. High school data originated from HS RIO surveillance data, 2008–2009 through 2013–2014; collegiate data originated from the NCAA-ISP surveillance data, 2004–2005 through 2013–2014. Injuries included in the analysis were those that (1) occurred during a sanctioned practice or competition; (2) were evaluated or treated (or both) by an athletic trainer, physician, or other health care professional; and (3) restricted the student-athlete from participation for at least 24 hours past the day of injury. All concussions, fractures, and dental injuries were included in the analysis, regardless of time loss. Data may include multiple injuries that occurred at 1 injury event.