{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,16]],"date-time":"2026-07-16T04:26:44Z","timestamp":1784176004221,"version":"3.55.0"},"reference-count":49,"publisher":"SAGE Publications","issue":"12","license":[{"start":{"date-parts":[[2024,12,1]],"date-time":"2024-12-01T00:00:00Z","timestamp":1733011200000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Orthopaedic Journal of Sports Medicine"],"published-print":{"date-parts":[[2024,12]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>Because of growing concerns regarding repeated head trauma, in 2016, the United States Soccer Federation (USSF) banned headers for athletes aged \u226410 years and limited athletes aged 11 to 13 years to practicing headers for 30 minutes per week.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Purpose:<\/jats:title>\n                    <jats:p>To assess whether the USSF header policy was associated with fewer soccer-related concussions after the 2015 season.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Study Design:<\/jats:title>\n                    <jats:p>Descriptive epidemiology study.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>A retrospective cohort from the National Electronic Injury Surveillance System database was assessed. Age, sex, and injury type were extracted for all soccer-related emergency department visits between January 1, 2012, and December 31, 2023. Univariate and multiple regression analyses were used to assess concussions as a percentage of all soccer-related injuries based on sex, age group (6-9, 10-13, and 14-17 years), and year. The following time frames were assessed: 2012-2015, 2016-2019, and 2020-2023.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>The proportion of concussions decreased from 8.2% of all soccer-related injuries in 2012-2015 to 6.1% in 2020-2023 ( P &lt; .01). The relative risk reduction for soccer-related concussions presenting to an emergency department in 2020-2023 compared with 2012-2015 was 25.6%. Overall, the proportion of concussions among 10- to 13-year-old and 14- to 17-year-old players was higher than for 6- to 9-year-old players (6.6% and 8.9% vs 4.9%, respectively; P &lt; .01). Despite having a lower frequency of soccer-related injuries overall, female players had a greater proportion of concussions than male players (9.6% vs 6.2% of all soccer-related injuries; P &lt; .01). In the multiple regression analysis, injuries that occurred in 2020-2023 were associated with lower odds of concussion compared with 2012-2015 (odds ratio [OR], 0.75 [95% CI, 0.69-0.81]). Compared with 6- to 9-year-old and male players, the 10- to 13-year-old (OR, 1.30 [95% CI, 1.16-1.45]), 14- to 17-year-old (OR, 1.79 [95% CI, 1.61-1.99]), and female players (OR, 1.53 [95% CI, 1.43-1.63]) were associated with higher odds of concussion.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>A 25.6% reduction in the relative risk of presenting to the emergency department with a soccer-related concussion was found when comparing 2020-2023 (after USSF header policy implementation) with 2012-2015 (before policy implementation). The USSF youth soccer header policy may improve player safety by reducing head impacts in the pediatric population.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/23259671241303180","type":"journal-article","created":{"date-parts":[[2024,12,3]],"date-time":"2024-12-03T06:09:52Z","timestamp":1733206192000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":4,"title":["Pediatric Concussion Injuries in Soccer: Emergency Department Trends in the United States From 2012 to 2023"],"prefix":"10.1177","volume":"12","author":[{"given":"Georgia R.","family":"Sullivan","sequence":"first","affiliation":[{"name":"Mayo Clinic Alix School of Medicine, Scottsdale, Arizona, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eugenia A.","family":"Lin","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, Mayo Clinic Arizona, Phoenix, Arizona, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexander","family":"Hoffer","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, Mayo Clinic Arizona, Phoenix, Arizona, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Meghan","family":"Richardson","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, Mayo Clinic Arizona, Phoenix, Arizona, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anikar","family":"Chhabra","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, Mayo Clinic Arizona, Phoenix, Arizona, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2024,12,3]]},"reference":[{"key":"bibr1-23259671241303180","doi-asserted-by":"publisher","DOI":"10.1177\/19417381231174461"},{"key":"bibr2-23259671241303180","doi-asserted-by":"publisher","DOI":"10.1080\/02699052.2021.1896034"},{"key":"bibr3-23259671241303180","doi-asserted-by":"publisher","DOI":"10.1080\/00913847.2017.1327304"},{"key":"bibr4-23259671241303180","doi-asserted-by":"publisher","DOI":"10.1001\/jamapediatrics.2013.434"},{"key":"bibr5-23259671241303180","doi-asserted-by":"publisher","DOI":"10.3810\/psm.2013.05.2015"},{"key":"bibr6-23259671241303180","doi-asserted-by":"publisher","DOI":"10.1136\/bjsports-2015-095103"},{"key":"bibr7-23259671241303180","doi-asserted-by":"publisher","DOI":"10.1016\/j.ptsp.2021.08.001"},{"key":"bibr8-23259671241303180","doi-asserted-by":"publisher","DOI":"10.1001\/jamanetworkopen.2021.8191"},{"key":"bibr9-23259671241303180","doi-asserted-by":"publisher","DOI":"10.1007\/s40279-015-0335-6"},{"key":"bibr10-23259671241303180","doi-asserted-by":"publisher","DOI":"10.1080\/15438627.2017.1393756"},{"key":"bibr11-23259671241303180","doi-asserted-by":"publisher","DOI":"10.26603\/ijspt20190334"},{"key":"bibr12-23259671241303180","doi-asserted-by":"publisher","DOI":"10.1097\/JSM.0000000000000497"},{"key":"bibr13-23259671241303180","doi-asserted-by":"publisher","DOI":"10.1001\/jamapediatrics.2015.1062"},{"key":"bibr14-23259671241303180","unstructured":"CPSC NEISS online query system. 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