TABLE 3.

High and Low Geocoded Socioeconomic Backgrounds: Utilization and Prices for Outpatient, Inpatient, Pharmacy, and ED Services

	Utilization									Prices, $
Type of Service, Annual	High Socioeconomic Background				Low Socioeconomic Background					High Socioeconomic Background				Low Socioeconomic Background
	(ABSM >1 SD Above Enrollee Mean)				(ABSM <1 SD Below Enrollee Mean)					(ABSM >1 SD Above Enrollee Mean)				(ABSM <1 SD Below Enrollee Mean)
	Median Observed	Mean Adjusted	95% CI		Median Observed	Mean Adjusted	95% CI		P	Median Observed	Mean Adjusted	95% CI		Median Observed	Mean Adjusted	95% CI		P
Outpatient encounters	5.0	7.9	7.9	8.0	4.0	6.4	6.4	6.5	<.001	103	223	221	225	102	206	204	208	<.001
Prescription drug classes	1.0	1.7	1.7	1.8	1.0	1.5	1.5	1.6	<.001	13	141	133	149	9	104	99	108	<.001
Inpatient
Admissions	0.0	0.07	0.067	0.070	0.0	0.08	0.076	0.079	<.001	2711	9792	9295	10 289	2657	10 336	9706	10 967	.10
Length of stay, d	2.0	4.3	4.2	4.4	2.0	4.3	4.2	4.5	.77	—	—	—	—	—	—	—	—	—
ED visits	0.0	0.18	0.18	0.19	0.0	0.23	0.22	0.23	<.001	148	212	210	215	145	182	180	184	<.001

—, not applicable.