2018-19 Concussion Data Reinforces Trends

September 26, 2019

By Geoff Kimmerly
Second Half editor

Data on student-athlete concussions collected by the Michigan High School Athletic Association from member high schools during the 2018-19 school year further reinforced findings from the first three years of reporting, and will contribute significantly as a number of MHSAA-associated groups work during the coming year to reduce the incidence of those injuries.

The 2018-19 concussion report found student-athletes at MHSAA member high schools encountered a total of 3,686 head injuries during the past school year – 3.0 percent more than in 2017-18. But that slight increase barely affected two key ratios. The number of injuries per member school was 4.9, up just a tenth of a percent from 2017-18, and for the second straight year only 1.3 percent of participants in MHSAA sports experienced a head injury, still down from 1.4 in 2016-17 and 1.6 percent the first year of the study. Total participation in MHSAA sports for 2018-19 was 281,992 – with students counted once for each sport they played.

The MHSAA has continued to invite Michigan’s universities, health care systems and the National Federation of State High School Associations (NFHS) to take part in analyzing the data and resulting questions that have arisen during the past three years. The 2018-19 results will be examined by the MHSAA’s newly-formed Sports Medicine Advisory Committee and also undergo analysis by representatives of Michigan State University’s Institute for the Study of Youth Sports. Furthermore, the MHSAA is directing its sport committees to study the data as they consider adjustments that could be made to rules for practice and competition. 

“The 2018-19 concussion survey further reinforced the findings and trends we have seen emerge; not only in specific sports, but across all of our activities – and this latest set of results also raises new questions,” MHSAA Executive Director Mark Uyl said. “We must continue to look at how changes to playing rules and improvements in equipment may be beneficial moving forward, and also how we can further educate administrators, coaches, athletes and parents to identify and provide treatment for these injuries as soon as possible. We also are excited for the opportunity to have more eyes on these results as we continue to explore more ways to make our games safer.”  

As first mandated in 2015-16, member schools are required to report head injuries to the MHSAA identifying the sport that each student-athlete was participating in and whether the injury was sustained during practice or competition. Schools also are required to designate at which level – varsity, junior varsity or freshman – the injury occurred.

The full report of all head injuries experienced during 2018-19 by student-athletes at MHSAA member high schools – including percentages by sport (per 1,000 participants), gender and team level, as well as data tracking when athletes returned to play – is available on the Health & Safety page of the MHSAA Website.

Keeping with the first three years of this survey, the MHSAA continued to receive data from more than 99 percent of its member high schools after the fall, winter and spring seasons. Member junior high and middle schools also were allowed, although not mandated, to report their head injuries; and those findings are not part of the published report.

Boys in 2018-19 experienced 2,404 – or 65 percent – of concussion injuries, just a percent less than during 2017-18, and not surprisingly as boys have a much higher participation in contact sports. More than half of head injuries – 59 percent – were experienced by varsity athletes, a slight increase of three percent from the previous year. A total of 2,441 head injuries – or 66 percent – came in competition as opposed to practice. Just more than half took place during either the middle of practice or middle of competition as opposed to the start or end, and 51 percent of injuries were a result of person-to-person contact. 

The MHSAA also asked schools to report the number of days between the head injury and the athlete’s return to activity – and the two largest groups returned to activity after either 6 to 10 days of rest (24 percent) or 11 to 15 days (23 percent). All of these findings were within 1-3 percent of those discovered from the 2017-18 data. 

Contact sports again revealed the most head injuries. Ranking first was football, 11 and 8-player combined, with 44 head injuries per 1,000 participants – an increase of three per 1,000 from 2017-18 but the same ratio as 2016-17 and still down from 49 head injuries per 1,000 football participants shown by the first study in 2015-16. Ice hockey again revealed the second-most injuries per 1,000, with 35 (also up three from a year ago but still down from 36 injuries per 1,000 from 2016-17 and 38 per 1,000 in 2015-16), and girls soccer was third with 25 head injuries per 1,000 participants for the second year in a row. Wrestling followed with 22 head injuries per 1,000 participants. 

Continuing a noticeable trend of the last few years, the next three sports to show the highest incidences of head injuries were girls sports – girls lacrosse, competitive cheer and basketball also revealed 20 per 1,000 participants, although basketball was down two injuries per 1,000 participants or nearly 10 percent from the previous year. Boys lacrosse (16), boys soccer (14), girls volleyball (11), softball (11) and gymnastics (10) also showed double-digit head injuries per 1,000 participants. 

Females again reported significantly more concussions than males playing the same or similar sports – soccer, basketball and baseball/softball. Female soccer players reported nearly double the concussions per 1,000 participants as male soccer players (25 to 14), while female basketball players reported nearly triple the number of concussions per 1,000 participants (20 to 7). Softball players also reported nearly triple the concussions per 1,000 participants of baseball players (11 to 4). 

Schools report possible concussions online via the MHSAA Website. Reports are then examined by members of the MHSAA staff, who follow up with school administrators as those student-athletes continue to receive care and eventually return to play. Student privacy is protected. 

The reporting of concussions is part of a three-pronged advance by the MHSAA in concussion care begun during the 2015-16 school year. The MHSAA completed in spring 2017 the largest-ever state high school association sideline concussion testing pilot program, with a sample of schools from across the state over two years using one of two screening tests designed to detect concussions. The MHSAA also was the first state association to provide all participants at every member high school and junior high/middle school with insurance intended to pay accident medical expense benefits – covering deductibles and co-pays left unpaid by other policies – resulting from head injuries sustained during school practices or competitions and at no cost to either schools or families. 

Previously, the MHSAA also was among the first state associations to adopt a return-to-play protocol that keeps an athlete out of activity until at least the next day after a suspected concussion, and allows that athlete to return to play only after he or she has been cleared unconditionally for activity by a doctor (M.D. or D.O.), physician’s assistant or nurse practitioner.

In addition, the MHSAA’s Coaches Advancement Program – which includes courses that must be completed by all varsity head coaches hired for the first time at a member school – provides substantial instruction on concussion care. Separately, rules meetings that are required viewing for high school varsity and subvarsity head and assistant coaches at the start of each season include detailed training on caring for athletes with possible head injuries.

MHSAA Announces 2016-17 Concussion Data

August 7, 2017

By Geoff Kimmerly
Second Half editor

The Michigan High School Athletic Association has completed its second year of collecting head injury reports from member schools as it continues to build data that will assist in identifying trends and progress being made to reduce the incidence of head injuries in school sports. 

Following a first mandate to do so in 2015-16, member schools again were required to report head injuries to the MHSAA identifying the sport that each student-athlete was participating in and whether the injury was sustained during practice or competition. As reporting for the 2017-18 school year is now underway, schools again are required to designate if potential concussions occur during competition or practice and at which level – varsity, junior varsity or freshman. 

The full report of all head injuries experienced during 2016-17 by student-athletes at MHSAA member high schools – including percentages by sport (per 1,000 participants), gender and team level, as well as data tracking when athletes returned to play – is available on the Health & Safety page of the MHSAA Website.

As with the first year of reporting, the MHSAA received data from more than 99 percent of its member high schools after the fall, winter and spring seasons and continued to track each injury report through its conclusion this summer. Member junior high and middle schools also were allowed, although not mandated, to report their potential head injuries; and those findings are not part of the published report.

The 2016-17 concussion report found an 11-percent decrease in the number of confirmed concussions from the previous year. Student-athletes at MHSAA member high schools encountered during 2016-17 a total of 3,958 head injuries – or 5.2 per member school, similar but lower than the 2015-16 average of 5.9. Total participation in MHSAA sports for 2016-17 was 283,625 – with students counted once for each sport he or she played – and only 1.4 percent of participants experienced a head injury; that percentage in 2015-16 was 1.6. 

However, MHSAA Executive Director John E. “Jack” Roberts said that while it’s significant to note the similarity in those statistics over the first two years of injury report collection, the lower percentages in 2016-17 don’t necessarily represent a trend – that conclusion can only be made after more data is collected in years to come. Some differences in data from the first year to the second could be the result of schools’ increased familiarity with the reporting system, the refinement of the follow-up reporting procedure and other survey error that is expected to decrease with future surveys.  

“Our first survey in 2015-16 raised some initial themes, and the data we collected this past year and will continue to collect will help us identify the trends that will guide our next steps in reducing head injuries in interscholastic athletics,” Roberts said. “However, the necessity for more data to determine these trends should not delay our efforts to experiment with more head protection and modified play and practice rules in contact sports like ice hockey, soccer, wrestling and lacrosse – which all ranked among the top 10 sports for numbers of head injuries per thousand participants. 

“We will continue to look for ways to make our good games better and our healthy games safer, and the collection of this data will continue to prove key as we work toward those goals.” 

Although the total number of confirmed concussions was significantly lower in 2016-17, a number of findings detailing those injuries fell in line with results of the 2015-16 survey. 

Boys experienced 2,607 – or 66 percent – of those injuries, nearly the same ratio as 2015-16 and as boys participation in sports, especially contact sports, remained higher than girls. More than half of head injuries – 55 percent – were experienced by varsity athletes, which also fell within a percent difference of last year’s findings. 

A total of 2,973 head injuries – or 65 percent – came in competition as opposed to practice. More than half took place during either the middle of practice or middle of competition as opposed to the start or end, and 52 percent of injuries were a result of person-to-person contact. The largest percentage of athletes – 27 percent – returned to activity after 6 to 10 days, while 23 percent of those who suffered head injuries returned after 11-15 days of rest. All of these findings were within 1-4 percent of those discovered from the 2015-16 data. 

Contact sports again revealed the most head injuries. Ranking first was football, 11 and 8-player combined, with 44 head injuries per 1,000 participants – a decrease of five head injuries per 1,000 participants from 2015-16. Ice hockey repeated with the second-most injuries per 1,000, with 36 (down two injuries per 1,000 from 2015-16), and girls soccer was again third with 28 head injuries per 1,000 participants (also down two from the previous year). 

In fact, after football and hockey, four of the next five sports to show the highest incidences of head injuries were girls sports – girls soccer followed by girls basketball (23 per 1,000), girls competitive cheer (22) and girls lacrosse (20). Although girls basketball again showed the fifth-highest ratio, it did see a decline of six injuries per 1,000 participants from 2015-16.

Startling indications of another potential trend were seen again in the number of reported head injuries suffered by girls and boys playing the same sports. Soccer, basketball and baseball/softball are played under identical or nearly identical rules. Just as in 2015-16, females in those sports reported significantly more concussions than males playing the same or similar sport. 

Female soccer players reported double the concussions per 1,000 participants as male soccer players, while female basketball players reported nearly triple the number of concussions per 1,000 participants (23 to 8). Softball players reported 11 concussions per 1,000 participants, and baseball players reported four per 1,000. The numbers from all three comparisons remained consistent from what the survey found in 2015-16.

It is the hope that Michigan’s universities, health care systems and the National Federation of State High School Associations will take part in analyzing the data and questions that have arisen during the past two years. Michigan State University’s Institute for the Study of Youth Sports submitted a paper titled “Gender Differences in Youth Sports Concussion” based on the 2015-16 results, and that subject will remain closely monitored in 2017-18 and beyond. 

“The Institute’s research concluded that there is merit for believing females may be more susceptible than males to having concussions because of structural differences to the neck and head, and also due to neurological differences in the brains of females and males. But the findings also show merit for believing females may be more honest in reporting concussions,” Roberts said. 

“We need to find out why. Are girls just more willing to report the injury? Are boys hiding it? These are some of our most important questions moving forward, and they will be critical in our efforts to educate athletes, their parents and coaches on the importance of reporting and receiving care for these injuries immediately.” 

Schools report possible concussions online via the MHSAA Website. Reports are then examined by members of the MHSAA staff, who follow up with school administrators as those student-athletes continue to receive care and eventually return to play. Student privacy is protected. 

The reporting of possible concussions is part of a three-pronged advance by the MHSAA in concussion care begun during the 2015-16 school year. The MHSAA completed this past spring (2017) the largest-ever state high school association sideline concussion testing pilot program, with a sample of schools from across the state over the last two years using one of two screening tests designed to detect concussions. The second year of the pilot program (2016-17) allowed participating schools to use the sideline detection tests in all sports but mandated they be used in sports (11 total over three seasons) showing the highest prevalence of concussions. 

The MHSAA also was the first state association to provide all participants at every member high school and junior high/middle school with insurance intended to pay accident medical expense benefits – covering deductibles and co-pays left unpaid by other policies – resulting from head injuries sustained during school practices or competitions and at no cost to either schools or families. During 2016-17, a total of 139 claims were made – 20 fewer than in 2015-16 – with football (44) and girls basketball (27) the sports most cited in those claims for the second straight year.

Previously, the MHSAA also was among the first state associations to adopt a return-to-play protocol that keeps an athlete out of activity until at least the next day after a suspected concussion, and allows that athlete to return to play only after he or she has been cleared unconditionally for activity by a doctor (M.D. or D.O.), physician’s assistant or nurse practitioner.

In addition, the MHSAA’s Coaches Advancement Program – which includes courses that must be completed by all varsity head coaches hired for the first time at a member school – has augmented for this fall its already substantial instruction on concussion care. Separately, rules meetings that are required viewing for all varsity and subvarsity head and assistant coaches at the start of each season include detailed training on caring for athletes with possible head injuries. 

The MHSAA is a private, not-for-profit corporation of voluntary membership by more than 1,400 public and private senior high schools and junior high/middle schools which exists to develop common rules for athletic eligibility and competition. No government funds or tax dollars support the MHSAA, which was the first such association nationally to not accept membership dues or tournament entry fees from schools. Member schools which enforce these rules are permitted to participate in MHSAA tournaments, which attract more than 1.4 million spectators each year.