From: An epidemiologic comparison of acute and overuse injuries in high school sports
 |  | Acute Injuries | Overuse Injuries | Injury Rate Ratio (95 % CI) | ||
---|---|---|---|---|---|---|
 | AEs | Number | Rate per 10,000 AEs | Number | Rate per 10,000 AEs | |
Variable | ||||||
Total | 25 261 047 | 48 585 | 19.2 | 3 700 | 1.5 | 13.12 (12.69, 13.57) |
Year | ||||||
  2006-07 | 1 820 367 | 4 154 | 22.8 | 385 | 2.1 | 10.79 (9.72, 11.98) |
  2007-08 | 2 077 780 | 4 323 | 20.8 | 343 | 1.7 | 12.60 (11.29, 14.07) |
  2008-09 | 2 112 479 | 3 848 | 18.2 | 287 | 1.4 | 13.41 (11.89, 15.12) |
  2009-10 | 1 763 241 | 3 386 | 19.2 | 235 | 1.3 | 14.41 (12.62, 16.45) |
  2010-11 | 1 762 485 | 3 271 | 18.6 | 230 | 1.3 | 14.22 (12.44, 16.26) |
  2011-12 | 1 733 895 | 3 552 | 20.5 | 243 | 1.4 | 14.62 (12.84, 16.65) |
  2012-13 | 1 874 256 | 3 925 | 20.9 | 220 | 1.2 | 17.84 (15.58, 20.44) |
  2013-14 | 1 873 729 | 3 899 | 20.8 | 271 | 1.5 | 14.39 (12.72, 16.27) |
  2014-15 | 1 723 204 | 3 557 | 20.6 | 207 | 1.2 | 17.18 (14.94, 19.77) |
  2015-16 | 1 779 940 | 3 876 | 21.8 | 336 | 1.9 | 11.54 (10.32, 12.90) |
  2016-17 | 1 602 904 | 3 190 | 19.9 | 234 | 1.5 | 13.63 (11.94, 15.57) |
  2017-18 | 1 674 494 | 3 850 | 23.0 | 374 | 2.2 | 10.29 (9.26, 11.45) |
  2018-19 | 1 732 499 | 3 754 | 21.6 | 335 | 1.9 | 11.17 (9.99, 12.49) |
Gender (all sports) | ||||||
  Male | 15 566 184 | 36 685 | 23.6 | 2 239 | 1.4 | 16.38 (15.70, 17.10) |
  Female | 7 965 090 | 11 900 | 14.9 | 1 461 | 1.8 | 8.14 (7.71, 8.60) |
Gender (comparable sports) | ||||||
  Male | 7 313 633 | 9 266 | 12.7 | 996 | 1.4 | 9.30 (8.71, 9.93) |
  Female | 5 819 622 | 9 781 | 16.8 | 1 142 | 2.0 | 8.56 (8.05, 9.10) |
Boys’ Sports | ||||||
  Football | 6 317 503 | 23 584 | 37.3 | 1 051 | 1.7 | 22.43 (21.09, 23.86) |
  Soccer | 2 298 919 | 3 663 | 15.9 | 379 | 1.7 | 9.66 (8.70, 10.74) |
  Basketball | 2 806 929 | 3 912 | 13.9 | 267 | 1.0 | 14.65 (12.94, 16.59) |
  Wrestling | 1 935 048 | 3 835 | 19.8 | 192 | 1.0 | 19.97 (17.28, 23.09) |
  Baseball | 2 207 785 | 1 691 | 7.7 | 350 | 1.6 | 4.83 (4.31, 5.42) |
Girls’ Sports | ||||||
  Soccer | 2 001 410 | 4 456 | 22.3 | 452 | 2.3 | 9.85 (8.95, 10.86) |
  Volleyball | 2 145 468 | 2 119 | 9.9 | 319 | 1.5 | 6.64 (5.90, 7.47) |
  Basketball | 2 189 892 | 3 687 | 16.8 | 378 | 1.7 | 9.75 (8.77, 10.84) |
  Softball | 1 628 320 | 1 638 | 10.1 | 312 | 1.9 | 5.25 (4.65, 5.93) |
Exposure Type | ||||||
  Competition | 6 472 178 | 28 355 | 43.8 | 886 | 1.4 | 32.00 (29.93, 34.22) |
  Practice | 17 061 395 | 20 219 | 11.9 | 2 814 | 1.7 | 7.19 (6.91, 7.47) |