TABLE 1

Concussion Counts by Age Group Based on 3 Databases

Age (y)MarketScanaRIObNEISSc
Outpatient (95% CI)Inpatient (95% CI)ED (95% CI)ATC only (95% CI)Inpatient (95% CI)ED (95% CI)
0–524 071 (23 270–24 887)756 (621–914)19 037 (18 326–19 765)4540 (3116–5964)
6–1048 798 (47 656–49 961)622 (497–763)28 059 (27 194–28 942)20 252 (15 092–25 412)
11–1383 224 (81 775–84 693)687 (563–835)35 945 (34 992–36 911)28 392 (22 270–34 512
14–18208 724 (206 483–210 989)2722 (2472–2993)79 525 (78 141–80 925)73 002 (59 450–86 555)62 296 (48 865–75 727)
Total377 978 (374 858–381 126)4936 (4587–5303)166 929 (164 854–169 020)2886 (1160–2783)115 479 (89 343–141 615)
  • CI, confidence interval.

  • a MarketScan includes data from outpatient, inpatient, and ED visits.

  • b RIO includes all reported concussions documented by athletic trainers for high school students only. No data available for children <14 y old.

  • c Sample size too small to provide population estimates and CIs for age categories.