Ages 19-25		Ages 26-34		Difference in change between age groups1	Risk adjusted difference in change between age groups (95% CI)2	p value for between- group difference
	Before ACA-DCP	After ACA-DCP	Before ACA-DCP	After ACA-DCP
Insurance Status3
Private	29.7%	32.9%	31.3%	29.2%	5.0%	n/a	<0.001***
Public	17.5%	18.6%	18.2%	21.0%	-1.8%	n/a	<0.001***
Other	14.8%	15.5%	14.0%	14.9%	0.0%	n/a	0.86
Uninsured	37.9%	33.0%	36.5%	34.8%	-3.3%	n/a	<0.001***
Clinical outcomes among entire population3
Mortality (per 100K)	2880	2538	2715	2386	-14	-38 (-238, 162)	0.71
ICU stay (days)	5.26	5.04	5.27	5.12	-0.06	-0.04 (-0.27, 0.18)	0.69
Discharge to rehabilitation facility (%)	10.12%	10.16%	10.23%	10.26%	0.0%	0.0% (-0.5, 0.5)	0.90

SOURCE: National Trauma Data Bank, 2007-2009 & 2011-2012. NOTE: ACA, Affordable Care Act; DCP, dependent coverage provision; CI, confidence interval; ICU, intensive care unit. 1. Risk adjusted models for clinical outcomes adjusted for age, year, facility, gender, race, injury severity, injury mechanism, traumatic brain injury, level-1 trauma center status, teaching status, for-profit status, and safety-net hospital status; 3. n= Patients age 23-25 and 27-29 with known insurance status: 326,033

^*p < 0.05,

^**p < 0.01,

^***p < 0.001