highly significantp < 0.001
This difference was highly significant (p < 0.001) in both instances (for males vs females, χ 2 = 53.3, Odds Ratio 3.1, 95% Confidence Interval 2.26 to 4.25; for non-White vs White, excluding the unknown group, χ 2 = 322.4, Odds Ratio 3.61, 95% Confidence Interval 3.13 to 4.16).