TY  - JOUR
PY  - 2017//
TI  - New and recurrent concussions in high-school athletes before and after traumatic brain injury laws, 2005-2016
JO  - American journal of public health
A1  - Yang, Jingzhen
A1  - Comstock, R. Dawn
A1  - Yi, Honggang
A1  - Harvey, Hosea H.
A1  - Xun, Pengcheng
SP  - 1916
EP  - 1922
VL  - 107
IS  - 12
N2  - OBJECTIVES: To examine the trends of new and recurrent sports-related concussions in high-school athletes before and after youth sports traumatic brain injury laws. <br><br>METHODS: We used an interrupted time-series design and analyzed the concussion data (2005-2016) from High School Reporting Injury Online. We examined the trends of new or recurrent concussion rates among US representative high-school athletes participating in 9 sports across prelaw, immediate-postlaw, and postlaw periods by using general linear models. We defined 1 athlete exposure as attending 1 competition or practice. <br><br>RESULTS: We included a total of 8043 reported concussions (88.7% new, 11.3% recurrent). The average annual concussion rate was 39.8 per 100 000 athlete exposures. We observed significantly increased trends of reported new and recurrent concussions from the prelaw, through immediate-postlaw, into the postlaw period. However, the recurrent concussion rate showed a significant decline 2.6 years after the laws went into effect. Football exhibited different trends compared with other boys' sports and girls' sports. <br><br>CONCLUSIONS: Observed trends of increased concussion rates are likely attributable to increased identification and reporting. Additional research is needed to evaluate intended long-term impact of traumatic brain injury laws. (Am J Public Health. Published online ahead of print October 19, 2017: e1-e7. doi:10.2105/AJPH.2017.304056).<p />  <p>Language: en</p>
LA  - en
SN  - 0090-0036
UR  - http://dx.doi.org/10.2105/AJPH.2017.304056
ID  - ref1
ER  -