Lifetime prevalence of TBI for females and males by demographics and TBI associated factors, Ontario, Canada 7th–12th graders, 2011.

<p>Note: ^a Percentages are weighted; ^b Totals are based on N = 8915, forms A and B of the survey; ^c Past 12 months; ^d Excluding sips; ^e Past four weeks; ^f Based on subsample A, n = 4685; ^g Since September; ^h Based on subsample B, n = 4230.</p><p><i>ns</i> statistically not-significant, <i>p</i>>.05; <i>*</i> Rao-Scott adjusted Chi-square statistically significant, <i>p</i><.05; ** Rao-Scott adjusted Chi-square statistically significant, <i>p</i><.01; *** Rao-Scott adjusted Chi-square statistically significant, p<.001.</p><p>Lifetime prevalence of TBI for females and males by demographics and TBI associated factors, Ontario, Canada 7th–12th graders, 2011.</p

Logistic Regression modeling with TBI, sex and Age and two interaction terms.

a<p>Based on Surveys A and B, N = 8915; ^b Past 12 months; ^c Excluding sips; ^d Past 4 weeks; ^e Based on Form A of the survey, n = 4685; ^f Since September; ^g Totals are based on n = 4230 form B of the survey; ^h *** p<.001, 2 tail test; ⁱ ** p<.01, 2 tail test; ^j * p<.05, 2 tails test.</p><p>Logistic Regression modeling with TBI, sex and Age and two interaction terms.</p

Past year physical injuries among adolescents with a history of TBI.

<p>Based on subsample B, n = 4230.</p

Past year daily smoking among adolescents with a history of TBI.

<p>Totals are based on N = 8915, forms A and B of the survey.</p

Past year drinking among adolescents with a history of TBI.

<p>Totals are based on N = 8915, forms A and B of the survey.</p