Fig. 1
From: Epidemiology of sports-related concussion in seven US high school and collegiate sports
Percentage of concussed athletes reporting each symptom. a Somatic symptoms group 1 (monotonic decrease over time). b Somatic symptoms group 2 (increase to day 1, then decrease). c Cognitive symptoms. d Neurobehavioral symptoms. TI time of injury (n = 238), PC 3 h post-injury (n = 218), Day 1 (n = 297), Day 2 (n = 293), Days 3–4 (n = 325), Days 5–6 (n = 314), Days 7–9 (n = 300)