Table 4 Distributions and mean values of mental health outcomes, by self-reported total concussion history

Depression (PHQ-9)^b

Mean (SD)

2.5 (3.0)

2.9 (3.6)

4.5 (4.6)

4.5 (5.0)

3.0 (3.7)

Categories, n (%)

Minimal (0–4)

370 (79.9)

114 (80.3)

39 (58.2)

57 (63.3)

580 (76.1)

Mild (5–9)

80 (17.3)

20 (14.1)

21 (31.3)

25 (27.8)

146 (19.2)

Moderate (10–14)

9 (2.0)

5 (3.5)

4 (6.0)

4 (4.4)

22 (2.9)

Moderately Severe (15–19)

3 (0.7)

3 (2.0)

1 (1.5)

1 (1.1)

8 (1.0)

Severe (20–27)

1 (0.2)

0 (0.0)

2 (3.0)

3 (3.3)

6 (0.8)

% ≥10^c

2.8%

5.6%

10.4%

8.9%

4.7%

.

Impulsivity (BIS15)

Mean (SD)

25.1 (5.2)

27.0 (6.4)

28.4 (7.0)

27.7 (7.4)

26.0 (6.0)

Subscale Mean (SD)

Attentional

8.5 (2.4)

9.4 (2.7)

10.3 (3.0)

9.9 (3.3)

9.0 (2.7)

Motor

8.1 (2.1)

8.7 (2.5)

9.0 (2.6)

8.6 (2.5)

8.4 (2.3)

Non-planning

8.4 (2.6)

9.0 (2.8)

9.1 (2.8)

9.2 (3.2)

8.7 (2.7)

.

Aggression (BPAQ-SF)

Mean (SD)

18.0 (6.3)

18.8 (7.8)

20.6 (7.7)

22.4 (10.0)

18.9 (7.4)

Subscale Mean (SD)

Physical aggression

3.5 (1.3)

3.8 (1.9)

3.9 (1.7)

4.5 (2.7)

3.7 (1.7)

Verbal aggression

5.3 (2.4)

5.4 (2.5)

6.2 (2.7)

6.6 (3.1)

5.5 (2.6)

Anger

4.7 (2.2)

5.1 (2.7)

5.5 (2.5)

5.7 (2.9)

5.0 (2.5)

Hostility

4.5 (2.2)

4.6 (2.5)

5.0 (2.7)

5.6 (3.3)

4.7 (2.5)