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2016 ; 44
(12
): 3243-3251
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English Wikipedia
Multiple Past Concussions in High School Football Players: Are There Differences
in Cognitive Functioning and Symptom Reporting?
#MMPMID27474382
Brooks BL
; Mannix R
; Maxwell B
; Zafonte R
; Berkner PD
; Iverson GL
Am J Sports Med
2016[Dec]; 44
(12
): 3243-3251
PMID27474382
show ga
BACKGROUND: There is increasing concern about the possible long-term effects of
multiple concussions, particularly on the developing adolescent brain. Whether
the effect of multiple concussions is detectable in high school football players
has not been well studied, although the public health implications are great in
this population. PURPOSE: To determine if there are measureable differences in
cognitive functioning or symptom reporting in high school football players with a
history of multiple concussions. STUDY DESIGN: Cross-sectional study; Level of
evidence, 3. METHODS: Participants included 5232 male adolescent football players
(mean [±SD] age, 15.5 ± 1.2 years) who completed baseline testing between 2009
and 2014. On the basis of injury history, athletes were grouped into 0 (n =
4183), 1 (n = 733), 2 (n = 216), 3 (n = 67), or ?4 (n = 33) prior concussions.
Cognitive functioning was measured by the Immediate Post-Concussion Assessment
and Cognitive Testing (ImPACT) battery, and symptom ratings were obtained from
the Post-Concussion Symptom Scale. RESULTS: There were no statistically
significant differences between groups (based on the number of reported
concussions) regarding cognitive functioning. Athletes with ?3 prior concussions
reported more symptoms than did athletes with 0 or 1 prior injury. In
multivariate analyses, concussion history was independently related to symptom
reporting but less so than developmental problems (eg, attention or learning
problems) or other health problems (eg, past treatment for psychiatric problems,
headaches, or migraines). CONCLUSION: In the largest study to date, high school
football players with multiple past concussions performed the same on cognitive
testing as those with no prior concussions. Concussion history was one of several
factors that were independently related to symptom reporting.