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Table 4 Varying sex-differences in odds of concussions from head injuries, by injury mechanism (player-to-player contact)

From: Multifactorial examination of sex-differences in head injuries and concussions among collegiate soccer players: NCAA ISS, 2004–2009

Concussions
(n = 582)
Men Women Women vs. Men
Other mechanisms Ref 0.84, 95% CI = [0.41, 1.70] 0.84, 95% CI = [0.41, 1.70]
Player-to-player contact mechanisms 0.23, 95% CI = [0.12, 0.44] 0.49, 95% CI = [0.25, 0.95] 2.12, 95% CI = [1.50, 2.97]
  1. Measure of variability in sex-differences on additive scale: RERI = 0.417, 95% CI = [−0.59, 1.42]
  2. Measure of variability in sex-differences on multiplicative scale: Ratio of ORs = 2.52, 95% CI = [1.15, 5.55]