Table 4

Logistic regression models for the association between individual-level and area-level measures of SES and the risk of being overweight, having low birth weight or smoking exposure status at home among children from Olmsted County, Minnesota

Socioeconomic measures	Overweight			Low birth weight			Smoking exposure at home
Socioeconomic measures	OR	95% CI	p Value	OR	95% CI	p Value	OR	95% CI	p Value
Individual-level income
<$50000 (referent)
$50000–$74999	0.68	0.33 to 1.38	0.281	0.29	0.11 to 0.79	0.016	0.44	0.24 to 0.82	0.009
$75000–$99999	0.40	0.19 to 0.87	0.021	0.45	0.19 to 1.07	0.070	0.28	0.15 to 0.53	<0.001
$100000–$149999	0.28	0.13 to 0.63	0.002	0.17	0.05 to 0.53	0.002	0.25	0.13 to 0.48	<0.001
$150000 and above	0.37	0.17 to 0.81	0.013	0.40	0.16 to 1.0	0.049	0.15	0.07 to 0.34	<0.001
Individual-level education
HS grad or below (referent)
Some college, no degree	1.42	0.50 to 4.07	0.513	0.53	0.12 to 2.30	0.900	0.35	0.18 to 0.67	0.002
Associate/college degree	0.62	0.22 to 1.76	0.371	0.63	0.17 to 2.30	0.480	0.08	0.04 to 0.17	<0.001
Graduate/professional degree	0.85	0.30 to 2.38	0.754	1.40	0.4 to 4.89	0.600	0.03	0.01 to 0.07	<0.001
Quartiles of median household income in 1999*
1 Lowest SES (referent)
2 Low SES	0.69	0.36 to 1.33	0.270	1.21	0.51 to 2.87	0.670	0.71	0.41 to 1.24	0.235
3 High SES	0.79	0.43 to 1.45	0.450	1.00	0.42 to 2.38	0.993	0.48	0.27 to 0.85	0.012
4 Highest SES	0.28	0.12 to 0.67	0.005	0.96	0.37 to 2.49	0.931	0.48	0.25 to 0.92	0.027
Quartiles of percent of bachelor degree or higher*
1 Lowest SES (referent)
2 Low SES	0.66	0.34 to 1.27	0.214	0.84	0.34 to 2.07	0.701	0.65	0.37 to 1.11	0.117
3 High SES	0.63	0.33 to 1.21	0.164	0.90	0.37 to 2.18	0.822	0.39	0.21 to 0.72	0.006
4 Highest SES	0.60	0.31 to 1.19	0.144	1.21	0.52 to 2.82	0.661	0.43	0.23 to 0.80	0.008

*Area-level.
HS, High school; SES, Socioeconomic status.