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Table 1 Athlete characteristics

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)

  1. All values are reported as the median and interquartile range, unless otherwise stated
  2. SRC sport-related concussion, MSK musculoskeletal, SCAT sport concussion assessment tool
  3. *Symptom scores at the time of blood draw
  4. **Two subjects did not report on their concussion history and this value was calculated from n = 100
  5. aFDR corrected at 0.05 vs. healthy controls
  6. bFDR corrected at 0.05 vs. MSK injury