From: Epidemiology of sports-related concussion in seven US high school and collegiate sports
Time of injury (n = 238)1 | Post-competition (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) | |
---|---|---|---|---|---|---|---|
Somatic group 1 | |||||||
Headache | 3.38 (1.42) | 3.20 (1.40) | 2.79 (1.38) | 2.31 (1.11) | 2.36 (1.30) | 2.05 (1.31) | 1.93 (1.23) |
Balance problems/dizziness | 3.07 (1.33) | 2.53 (1.33) | 1.99 (1.16) | 1.91 (1.21) | 2.10 (1.20) | 1.80 (1.11) | 1.71 (1.12) |
Nausea | 2.73 (1.33) | 2.13 (1.39) | 2.11 (1.27) | 1.87 (1.16) | 2.14 (1.21) | 1.92 (1.26) | 2.00 (1.41) |
Blurred vision | 2.76 (1.30) | 2.37 (1.34) | 1.97 (1.12) | 1.68 (0.89) | 1.80 (0.95) | 1.54 (0.88) | 1.28 (0.57) |
Numbness/tingling | 2.41 (1.41) | 2.11 (1.37) | 1.68 (1.1.6) | 1.83 (1.15) | 1.75 (1.42) | 3.25 (2.06) | 1.60 (0.89) |
Vomiting | 3.12 (1.36) | 3.33 (1.87) | 3.00 (0.94) | 2.38 (1.06) | 2.44 (1.51) | 2.00 (0.63) | 2.33 (2.31) |
Somatic group 2 | |||||||
Drowsiness | 2.83 (1.36) | 2.83 (1.50) | 2.45 (1.32) | 2.05 (1.25) | 2.15 (1.31) | 2.19 (1.44) | 1.84 (1.24) |
Fatigue | 2.87 (1.50) | 2.97 (1.53) | 2.54 (1.35) | 2.34 (1.29) | 2.29 (1.37) | 2.05 (1.23) | 1.83 (1.35) |
Sensitivity to light | 2.84 (1.43) | 2.70 (1.60) | 2.31 (1.27) | 1.82 (1.02) | 1.94 (1.16) | 1.71 (1.03) | 1.40 (0.76) |
Sensitivity to noise | 2.96 (1.44) | 2.74 (1.55) | 2.38 (1.24) | 1.78 (1.03) | 1.85 (1.11) | 1.64 (0.93) | 1.52 (0.75) |
Cognitive | |||||||
Difficulty concentrating | 2.98 (1.46) | 2.66 (1.45) | 2.28 (1.28) | 2.03 (1.20) | 2.13 (1.30) | 2.08 (1.34) | 1.79 (1.39) |
Feeling “in a fog” | 2.95 (1.44) | 2.74 (1.40) | 2.31 (1.34) | 1.92 (1.20) | 2.05 (1.22) | 2.00 (1.27) | 1.81 (1.20) |
Difficulty remembering | 3.17 (1.54) | 2.65 (1.54) | 2.18 (1.29) | 2.04 (1.25) | 2.21 (1.33) | 2.28 (1.48) | 1.53 (0.94) |
Neurobehavioral | |||||||
Sleeping more than usual | 3.00 (1.24) | 3.33 (1.46) | 2.81 (1.44) | 2.52 (1.39) | 2.49 (1.39) | 2.15 (1.30) | 2.00 (1.58) |
Trouble sleeping | 3.13 (1.46) | 3.05 (1.94) | 2.66 (1.52) | 2.28 (1.57) | 2.48 (1.47) | 2.39 (1.48) | 2.13 (1.54) |
Irritability | 3.00 (1.49) | 2.90 (1.59) | 2.43 (1.36) | 1.85 (1.03) | 2.07 (1.28) | 2.09 (1.43) | 2.21 (1.61) |
Sadness | 2.76 (1.48) | 2.73 (1.44) | 2.57 (1.50) | 1.67 (0.91) | 2.32 (1.70) | 1.92 (1.12) | 1.55 (0.82) |