Table 1 Demographics and anthropometric characteristics. Data are presented as mean ± standard deviation, median (interquartile range), or range [in square brackets]. SRC: sports-related concussion, am. Football: American Football, ^a: at least 365 days of no concussion or no concussion history, ⁱ: independent t-test, ^m: Mann-Whitney U test, ^*: p < 0.05.

Age (years)^m

23.69 ± 4.98

24.03 ± 4.68

Height (cm)ⁱ

182 ± 12.37

184.48 ± 9.78

Weight (kg)ⁱ

79 ± 14.17

80.29 ± 14.31

Body mass index (BMI)

23.79 ± 2.10

23.38 ± 2.27

Sex (male/female)

17/4

17/4

Sport

Soccer (n = 6)

Basketball (n = 6)

Am. Football (n = 2)

Other (n = 7)

Soccer (n = 7)

Basketball (n = 6)

Am. Football (n = 5)

Other (n = 3)

Number of concussions^m

1.76 ± 1.26

[1–5]

0.62 ± 1.12

[0–4]

Days since last concussion

31.71 ± 41.98

[2–140]

> 365^a

Symptom number^m

7 (7)

1 (2)

Symptom severity^m

10 (21)

1 (3)