Table 3.

Associations between each SES or race/ethnicity variable and PM_2.5 or ozone from univariate linear regressions.

	PM2.5			Ozone
Characteristic	Beta	95% CIa	p-value	Beta	95% CIa	p-value
% Expensive homes	−0.070	−0.083, −0.056	<0.001	−0.00033	−0.00034, −0.00031	<0.001
% Low income	0.044	0.031, 0.058	<0.001	0.00028	0.00027, 0.00029	<0.001
% High income	−0.168	−0.200, −0.135	<0.001	−0.00078	−0.00081, −0.00076	<0.001
% Poverty	−0.028	−0.045, −0.012	<0.001	0.00027	0.00026, 0.00028	<0.001
SEP Index	−0.285	−0.351, −0.220	<0.001	0.00158	0.00153, 0.00164	<0.001
Concentrated Disadvantage	−1.164	−1.430, −0.899	<0.001	0.00253	0.00230, 0.00276	<0.001
% Unemployed	−0.024	−0.045, −0.002	0.031	0.00041	0.00039, 0.00043	<0.001
% White	0.184	0.175, 0.192	<0.001	0.00019	0.00018, 0.00020	<0.001
% Black	−0.191	−0.216, −0.166	<0.001	−0.00051	−0.00053, −0.00049	<0.001
% Asian	−0.157	−0.173, −0.140	<0.001	−0.00055	−0.00056, −0.00054	<0.001
% Hispanic/Latino	−0.171	−0.179, −0.163	<0.001	0.00001	0.00001, 0.00002	<0.001
% Working class	0.079	0.058, 0.099	<0.001	0.00068	0.00067, 0.00070	<0.001
Smoking prevalence	70.656	66.436, 74.875	<0.001	0.08732	0.08364, 0.09099	<0.001

^aCI = confidence interval