Ages 19-25		Ages 26-34		Difference in change between age groups1	p value for between-group difference
	Before ACA-DCP	After ACA-DCP	Before ACA-DCP	After ACA-DCP
Insurance Status2
Private	31.1%	35.0%	32.5%	30.2%	6.2%	<0.001***
Public	17.9%	18.6%	18.2%	21.3%	-2.5%	<0.001***
Other	15.3%	16.0%	13.7%	14.5%	-0.1%	0.918
Uninsured	35.7%	30.5%	35.6%	34.1%	-3.7%	<0.001***

SOURCE: National Trauma Data Bank, 2007-09 & 2011-12. NOTE: ACA, Affordable Care Act; DCP, dependent coverage provision; CI, confidence interval; ICU, intensive care unit. 1. Adjusted for age, year, and facility effects; 2. All patients with known insurance status (n= 709,206);

^*p < 0.05,

^**p < 0.01,

^***p < 0.001