Table 1.

Comparison of analysis counties for the overall composite PQI to those excluded in 2006

	Analysis Counties N=172		Excluded Counties N=116		All counties in the U.S. N=3,147
	Mean	SD	Mean¹	SD	Mean²	SD
Population³	477,246	936,518	36,541*	31,880	78,142*	277,911
Percent of adults
Age 18–39	38	7	34*	6	35*	7
Age 40–64	43	3	46*	4	45*	4
Age 65–74	10	3	10	2	10*	2
Age 75 and older	9	3	9	3	9*	3
Male	50	3	50	3	49*	3
Female	50	3	50	3	51*	3
Non-Hispanic white	69	19	81*	18	80*	20
African American	9	8	1*	1	9	14
Hispanic	16	15	13	15	7*	12
Asian and Pacific	4	5	1*	1	1*	3
Islander
Median Household Income in $⁴	47,671	12,003	43,365*	9,929	40,658*	10,508
Poverty Percent All Ages	14	5	13	6	15*	6
Percent of persons 25years and older with less than a high school diploma (2005–2009)⁵	16	7	14*	6	18*	8
Percent of population eligible for Medicare⁶	16	5	17*	4	17*	4
Percent of population eligible for Medicaid	21	9	20	9	20	9
	N	%	N	%	N	%
Rural⁷	20	12	58*	50	1,382*	44

*denotes a statistically significant difference (at the 0.05 level) between sample and excluded counties

*denotes a statistically significant difference (at the 0.05 level) between sample and U.S. cities

Source: Intercensal population estimates for 2006 accompanying the AHRQ PQI SAS 4.4 software; also the source for the age and gender comparisons.

⁴

Source: Small Area Income and Poverty Estimates for 2006. http://www.census.gov/did/www/saipe/data/statecounty/data/index.html Also the source for poverty percent all ages. (N=3,140 non-missing US counties)

⁵

Source: Area Resource File 2011–2012 Version http://arf.hrsa.gov/ (N=3,143 non-missing US counties)

⁶

Source: Area Resource File 2013–2014 Version. http://arf.hrsa.gov/ Also the source for percent of population eligible for Medicaid. (N=3,139 non-missing US counties)

⁷

Source: Non-metro areas as defined by the Office of Management and Budget issued in 2003. http://www.census.gov/population/metro/data/pastmetro.html