From: Evidence of a distinct peripheral inflammatory profile in sport-related concussion
Variable | SRC (n = 43) | MSK injury (n = 30) | Healthy (n = 102) |
---|---|---|---|
Age (years) | 21.2 (18.9–22.1) | 20.9 (19.9–22.7) | 21.2 (19.6–22.3) |
Sex (n, % male) | 21 (48.8) | 17 (56.7) | 54 (52.9) |
Sport (n, %) | |||
 Basketball | 2 (4.6) | 1 (3.3) | 12 (11.8) |
 Field hockey | 2 (4.6) | – | 10 (9.8) |
 Football | 6 (13.9) | 3 (10.0) | 12 (11.8) |
 Ice hockey | 10 (23.2) | 8 (26.7) | 19 (18.6) |
 Lacrosse | 5 (11.6) | 2 (6.7) | 11 (10.8) |
 Mountain biking | 1 (2.3) | – | – |
 Rugby | 13 (30.2) | 7 (23.3) | 11 (10.8) |
 Soccer | 1 (2.3) | 3 (10.0) | 18 (17.6) |
 Swimming | – | 1 (3.3) | – |
 Track and field | – | 3 (10.0) | – |
 Volleyball | 3 (7.0) | 2 (6.7) | 8 (7.8) |
 Water polo | – | – | 1 (1) |
Symptoms* | |||
 Days to assessment from injury | 4 (3–5) | 4 (3–6) | – |
 Total symptoms | 9.5 (5.0–14.2)a,b | 2.0 (1.0–4.2) | 2.0. (0–4.0) |
 Symptom severity | 16.0 (5.7–29.7)a,b | 2.5 (1.0–5.7) | 2.0 (0–6.0) |
Days to blood sample from injury | 4 (range = 2–7) | 5 (range = 2–8) | – |
Days to medical clearance | 25.0 (15.0–55.5) | 33.5 (23.5–57.2) | – |
Concussion history (n, %) | 25 (58.1) | 14 (46.7) | 55 (55.0)** |
 Time since last concussion (years) | 3.2 (1.5–6.6) | 4.1 (2.4–4.3) | 4.0 (2.7–5.7) |