Table 1:

Demographics by study groupa

No PTHPTHP Value
Age (yr)17.08 (2.99)17.58 (5.87).7
ImPACT total symptom score37.46 (24.87)29.20 (24.65).2
% Male254%278%.09
% Prior concussion29%250%.12
Time to recovery (days)56 (70)55 (57).98

  • ↵a Data are mean (SD) unless otherwise noted.