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Table 7 ImPACT total symptom score cluster descriptive statistics, Mann–Whitney U-tests, effect sizes (d) and significance levels (p) N = 124

From: The frequency of post-traumatic stress disorder symptoms in athletes with and without sports related concussion

 

PC at baseline

HC

PC at baseline vs HC

n = 62

n = 62

M

SD

M

SD

Mann–Whitney U

r a

p

Total PTSD

0.09

0.391

0.18

0.43

1553.50

0.17

0.08

Total PC-TSS

3.57

4.02

2.83

4.26

1541.00

0.13

0.16

Migraine cluster

1.24

2.51

0.63

1.72

1659.00

0.15

0.11

Cognitive cluster

1.06

1.77

1.29

2.42

1916.50

0.00

0.98

Sleep cluster

1.44

2.12

1.00

1.75

1696.00

0.12

0.20

NeuroPsy cluster

0.66

1.61

0.48

1.49

1848.00

0.05

0.60

  1. PC at baseline baseline pre-injury in PC group, HC healthy control, M mean, SD standard deviation, r effect size, p Asymp. Sig. (2 tailed)
  2. aSmall effect size = 0.1; medium effect size = 0.3 and large effect size is 0.5 [21]