Table 1. Characteristics of Census variables composing census block group socioeconomic (SES) deprivation index.

Domain	Census Variable	Factor Loading	Factor Scoring Coefficient
Education
	% total population with less than high school	0.46353	0.05951
	% total population with a college degree	−0.42384	0.01817
Occupation
	% civilian labor force unemployed*	0.79788	0.20320
	% White collar §	−0.46336	−0.00944
Housing
	% household (HH) rent	0.58504	0.05888
	% vacant HH*	0.81785	0.16175
	% HH with > = 1 person per room*	0.61979	0.10684
	Median value of all owner-occupied HH, $	−0.19721	0.12412
	% female headed HH with dependent children† *	0.67542	0.10635
	% HH on public assistance income*	0.81928	0.17055
	% HH with no vehicle*	0.82504	0.15674
	% HH with no kitchen	0.10527	−0.12607
	% HH with no phone*	0.63371	0.08719
	% occupied HH with incomplete plumbing	0.20827	−0.07152
Income and Poverty
	Median family income, $	−0.42799	0.06314
	% HH income> = 400% of the US median HH income	−0.03565	0.17685
	% population below federal poverty line*	0.86242	0.16229
Racial Composition
	% non-Hispanic (NH) African Americans*	0.75122	0.15293
	% foreign born	−0.19410	−0.08588
Residential Stability
	% persons in same house no less than 5 years	−0.25038	0.00338
	% residents aged 65 years and over	−0.15917	0.00100
	Proportion of total variance explained	44.1%
	Cronbach's Alpha (internal consistency)	0.93

^§White collar includes management, professional, and related occupations;

^†% female headed HH with dependent children (no husband present with own children under 18 years;

^*variables selected to compute the socioeconomic deprivation score.