Total concussions | n | Crude MD | Adjusted MD |
---|
MD | 95% CI | MD | 95% CI |
---|
Impulsivity (BIS15)b, c
| Â | Â | Â | Â | Â |
0 | 476 | 0 | Â | 0 | Â |
1 | 142 | 2.0 | (0.9, 3.1) | 1.1 | (-0.0, 2.1) |
2 | 67 | 3.4 | (1.8, 4.9) | 2.7 | (1.2, 4.1) |
3+ | 92 | 2.7 | (1.4, 4.0) | 1.9 | (0.6, 3.2) |
Aggression (BPAQ-SF)b, d
| Â | Â | Â | Â | Â |
0 | 477 | 0 | Â | 0 | Â |
1 | 143 | 0.8 | (-0.5, 2.2) | 0.0 | (-1.3, 1.4) |
2 | 67 | 2.7 | (0.8, 4.5) | 1.8 | (-0.0, 3.7) |
3+ | 94 | 4.5 | (2.9, 6.1) | 3.0 | (1.4, 4.7) |
- NOTE: BIS15 = Short Form of the Barratt Impulsiveness scale; BPAQ-SF = 12-item Short Form of the Buss-Perry Aggression Questionnaire; MD = Mean difference; CI = Confidence interval.
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aTotal concussions includes all sport- and non-sport-related concussions.
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bModels utilized continuous outcomes and predicted mean differences using linear regression.
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cAdjusted models control for alcohol dependence, family history of anxiety, relationship status, education (obtained post-graduate degree), played primary college sport professionally.
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dAdjusted models control for alcohol dependence, sex, relationship status , played primary college sport professionally, and current BMI.