Exhibit 4.

Trends in Uninsurance by Region, Income, Health, Disability, and Federal Medicaid Eligibility Categories; Adults Aged 25–61, 2000–2005

	2000	2001	2002	2003	2004	2005
	13.7%	13.9%	14.5%	15.0%	15.5%	16.0%
All	(.58%)	(.54%)	(.42%)	(.41%)	(.53%)	(.63%)
	9.9%	10.7%	10.6%	9.8%	9.3%	11.6%
Northeast	(.63%)	(.59%)	(.63%)	(.91%)	(.84%)	(.98%)
	9.2%	10.7%	10.9%	11.1%	12.5%	12.7%
Midwest	(.75%)	(.59%)	(.72%)	(.61%)	(1.06%)	(.80%)
	17.1%	16.2%	17.8%	19.2%	19.5%	19.7%
South	(.98%)	(1.03%)	(.64%)	(.77%)	(.87%)	(.82%)
	15.9%	16.2%	16.1%	16.6%	17.3%	17.0%
West	(1.54%)	(1.41%)	(1.19%)	(1.10%)	(1.43%)	(1.96%)
< 125 FPL with disability and/or health condition
In federal	19.8%	18.5%	19.7%	19.7%	19.7%	2 0.5%
categories	(2.19%)	(1.87%)	(1.64%)	(1.54%)	(1.53%)	(2.20%)
Not in
federal	35.4%	30.5%	34.5%	35.1%	40.3%	42.0%
categories	(6.35%)	(3.71%)	(4.20%)	(3.39%)	(3.87%)	(3.95%)
< 125 FPL without disability or health condition
In federal	36.6%	38.8%	37.6%	37.4%	38.6%	40.6%
categories	(2.35%)	(2.09%)	(1.96%)	(1.63%)	(1.92%)	(1.83%)
Not in
federal	50.8%	50.0%	51.0%	53.3%	59.0%	56.0%
categories	(5.03%)	(3.55%)	(2.18%)	(3.28%)	(3.35%)	(2.49%)

Source: Authors’ tabulations of MEPS data (standard errors in parentheses).

Federal Medicaid eligibility categories: blind; parent of child 18 or under; or zero wages and not working due to disability and income from SSI, SSDI, VA pension, and/or workers’ compensation FPL: Federal Poverty Level.

Percent uninsured: Percent of person-years with no health insurance for whole year.

Disability and health condition categories are not mutually exclusive.

Disability: Persistent use of assistive devices, persistent upper body disability, lower body disability, cognitive impairment, blindness, or major hearing impairment.

Health condition: Ever diagnosed with asthma, hypertension, heart disease, angina, heart attack, stroke, pulmonary disease, or diabetes.