Table II.

Results from logistic regression analyses of the retained model of the interactions of age, sex, race and poverty status on history of traumatic brain injury.

Demographic variable	Odds ratio	95% confidence interval	p-value
Age	1.01	0.84–1.21	0.916
Sex	2.36	1.85–3.03	<0.001
Race	1.07	0.44–2.61	0.880
Poverty status	3.59	1.39–9.30	0.008
Race × poverty status	0.23	0.06–0.83	0.025
Race × age	0.95	0.74–1.24	0.716
Age × poverty status	0.80	0.60–1.06	0.124
Age × race × poverty status	1.57	1.07–2.31	0.021

Bold is significant at p<.05.