Table 2

 Multivariate model for the reporting of concussion/internal injuries occurring during sports/physical education/leisure or hobby or within a sports or athletics area

Risk factorOR95% CI
OR, Odds ratio; CI, confidence interval.
Age (12–14, 15–19, 20–24)0.690.55 to 0.86
Sex (M, F)0.380.24 to 0.60
Migraine diagnosed by a health professional2.361.20 to 4.65
Ice hockey2.851.90 to 4.28
Jogging or running1.971.41 to 2.76
Weight training1.921.35 to 2.75
Skiing or snowboarding1.741.09 to 2.78