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Table 1 Participants demographics and concussion history information

From: Motor system alterations in retired former athletes: the role of aging and concussion history

  Former University-level athletes
  Concussed (n = 15) Controls (n = 15)
Age at recruitment (yrs), mean (SD) 60.87 (7.51) 58.13 (5.28)
Level of Education, mean ± SD 16.67 (4.07) 17.27 (3.45)
Mean number concussions sustained 2.07 (1.22) -
Mean time since last concussion 37.07 (7.93) -
Mean concussion severity 2.19 (1.06)  
Age range frequency (50–56) 6 5
Age range frequency (57–63) 5 5
Age range frequency (63+) 4 5
Apoϵ4 allele frequency 2 2
  1. Abbreviations: yrs years; Apoϵ Apolipoprotein E; SD standard deviation.
  2. Participants concussion history information and demographics by experimental groups. Age range frequency refers to participants count stratified by age range. Apoϵ4 allele frequency refers to Apoϵ4 allele carriers count by experimental groups. Mean concussion severity refers to the group average of the most severe concussion sustained for each concussed athlete.
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