Table 1.
Reported Number and National Estimates of Acute and Overuse Injuries by Year, Gender, Sport, and Exposure Type
| Variable | Acute Injuries | Overuse Injuries | Total Injuries | P-valueb | |||
|---|---|---|---|---|---|---|---|
| RIO Data | National Estimate | RIO Data | National Estimate | RIO Data | National Estimate | ||
| n | n (%a) | n | n (%a) | n | n (%a) | ||
| Total | 48 585 | 16 039 385 (100.0) | 3 700 | 1 395 261 (100.0) | 52 285 | 17 434 646 (100.0) | |
| Year | < 0.0001 | ||||||
| 2006-07 | 4 154 | 1 286 717 (8.0) | 385 | 139 393 (10.0) | 4 539 | 1 426 111 (8.2) | |
| 2007-08 | 4 323 | 1 276 352 (8.0) | 343 | 111 132 (8.0) | 4 666 | 1 387 484 (8.0) | |
| 2008-09 | 3 848 | 1 105 534 (6.9) | 287 | 109 887 (7.9) | 4 135 | 1 215 421 (7.0) | |
| 2009-10 | 3 386 | 1 229 912 (7.7) | 235 | 108 970 (7.8) | 3 621 | 1 338 883 (7.7) | |
| 2010-11 | 3 271 | 1 110 073 (6.9) | 230 | 89 924 (6.4) | 3 501 | 1 199 997 (6.9) | |
| 2011-12 | 3 552 | 1 307 022 (8.1) | 243 | 103 851 (7.4) | 3 795 | 1 410 873 (8.1) | |
| 2012-13 | 3 925 | 1 332 860 (8.3) | 220 | 79 594 (5.7) | 4 145 | 1 412 454 (8.1) | |
| 2013-14 | 3 899 | 1 359 033 (8.5) | 271 | 94 574 (6.8) | 4 170 | 1 453 607 (8.3) | |
| 2014-15 | 3 557 | 1 162 379 (7.2) | 207 | 69 853 (5.0) | 3 764 | 1 232 232 (7.1) | |
| 2015-16 | 3 876 | 1 305 912 (8.1) | 336 | 120 217 (8.6) | 4 212 | 1 426 129 (8.2) | |
| 2016-17 | 3 190 | 1 085 989 (6.8) | 234 | 95 192 (6.8) | 3 424 | 1 181 180 (6.8) | |
| 2017-18 | 3 850 | 1 266 419 (7.9) | 374 | 139 610 (10.0) | 4 224 | 1 406 028 (8.1) | |
| 2018-19 | 3 754 | 1 211 182 (7.6) | 335 | 133 063 (9.5) | 4 089 | 1 344 245 (7.7) | |
| Gender (all sports) | < 0.0001 | ||||||
| Male | 36 548 | 11 192 580 (69.8) | 2 239 | 780 359 (55.9) | 38 787 | 11 972 939 (68.7) | |
| Female | 12 037 | 4 846 805 (30.2) | 1 461 | 614 902 (44.1) | 13 498 | 5 461 707 (31.3) | |
| Gender (comparable sports)c | 0.325 | ||||||
| Male | 9 266 | 3 461 432 (45.4) | 996 | 398 349 (43.9) | 10 262 | 3 859 781 (45.2) | |
| Female | 9 781 | 4 166 279 (54.6) | 1 142 | 508 419 (56.1) | 10 923 | 4 674 699 (54.8) | |
| Sport | < 0.0001 | ||||||
| Boys’ Football | 23 584 | 6 748 875 (42.1) | 1 051 | 331 029 (23.7) | 24 635 | 7 079 904 (40.6) | |
| Boys’ Soccer | 3 663 | 1 894 538 (11.8) | 379 | 209 001 (15.0) | 4 042 | 2 103 539 (12.1) | |
| Boys’ Basketball | 3 912 | 1 025 551 (6.4) | 267 | 77 135 (5.5) | 4 179 | 1 102 685 (6.3) | |
| Boys’ Wrestling | 3 835 | 1 011 042 (6.3) | 192 | 49 484 (3.5) | 4 027 | 1 060 527 (6.1) | |
| Boys’ Baseball | 1 691 | 541 343 (3.4) | 350 | 112 213 (8.0) | 2 041 | 653 556 (3.7) | |
| Girls’ Soccer | 4 456 | 2 497 513 (15.6) | 452 | 270 186 (19.4) | 4 908 | 2 767 699 (15.9) | |
| Girls’ Volleyball | 2 119 | 651 757 (4.1) | 319 | 107 979 (7.7) | 2 438 | 759 736 (4.4) | |
| Girls’ Basketball | 3 687 | 986 724 (6.2) | 378 | 101 243 (7.3) | 4 065 | 1 087 968 (6.2) | |
| Girls’ Softball | 1 638 | 682 042 (4.3) | 312 | 136 990 (9.8) | 1 950 | 819 032 (4.7) | |
| Exposure Typed | < 0.0001 | ||||||
| Competition | 28 355 | 9 647 277 (60.2) | 886 | 338 409 (24.3) | 29 241 | 9 985 687 (57.3) | |
| Practice | 20 219 | 6 390 158 (39.8) | 2 814 | 1 056 852 (75.7) | 23 033 | 7 447 010 (42.7) | |
a Percentages may not equal 100.0 % due to rounding
bP-values were based on Pearson chi-square comparing the frequencies of national estimates
c Comparable sports are boys’ and girls’ soccer, boys’ and girls’ basketball, boys’ baseball and girls’ softball
d Exposure types “Other” (n = 10) and “Performance” (n = 1) were excluded from p-value analysis