Table 1. Socio-demographic data.

		Population			Propensity score matched			High Utilization Subgroup analysis
		Intervention (INT)	Control (CTL)	p diff	INT	CTL	P Diff	INT	CTL	p diff
	N	4452	13149		1542	3446		1196	222
Gender (%)	Female	70.5	70.5	Ns	75.8	74.3	Ns	76	68	0.01
	Male	29.5	29.5	Ns	24.2	25.7	Ns	24	32
Age (Years)	Mean	49.8	49.8	Ns	50.1	48.8	.004	49.7	52.7	0.005
	25%/ Med/ 75%	38/ 50/ 61	38/ 50/ 61		39/50/61	39/49/58		38/50/60	43/53/63
Language (%)	English	96.7	93.9	< .05	98.2	98.2	< .05	98	99.6	Ns
	Spanish	0.5	1.7		.3	.9		1.75	.4
	Other	2.9	4.4		1.6	.9		.25	0
Race (%)	African-American	3.46	3.05	Ns	1.4	1	< .05	1.4	1.4	Ns
	Asian	3.38	3.57		1.1	.6		1.2	0
	Caucasian	84.8	84.71		94.9	92.4		94.9	95.5
	Hispanic	2.3	2.24		.6	1		.6	.9
	Nat. Am./ Pac.Isl.	0.18	0.09		.1	.3		0	0
	Other	5.89	6.33		2	4.6		1.9	2.3
Marital status (%)	Married	52.8	52.6	Ns	55.1	55.3	Ns	55.2	57.7	Ns
	Not Married	47.2	47.2		44.9	44.7		44.8	42.3
Religion (%)	Atheist	0.2	0.1	< .05	.19	.06	< .05	.3	.5	<0.0001
	Buddhist	0.6	0.5		0	.17		0	0
	Christian	44.4	57.2		62.3	61.2		63.6	80.6
	Hindu	0.6	0.4		.4	.09		.4	0
	Islam	0.6	1.1		.32	.29		.3	0
	Jewish	10.5	5.5		6.7	3.2		6.8	3.6
	Other	42.9	35.2		30.1	35		28.7	15.3
Veteran (%)	Yes	2.8	3.4	< .05	1.6	1.1	< .05	1.5	3.2	0.02
	No	84.8	71.7		84.7	76		88.1	91.4
	Other	12.4	24.9		13.7	22.9		10.3	5.4
Country (%)	US	69	63.2	< .05	71.1	71.1	Ns	75.2	83.3	.01
	Other*	31	36.8		28.9	28.9		24.8	16.7
Income ($K)	Mean	82	76	< .05	83	78	< .05	84	77	<0.001
	25%/ Med/ 75%	64/ 77/ 99	57/ 70/ 91		65/77/99	61/74/92		65/79/99	59/72/91

* proportion of patients with no country of origin recorded in the administrative database. of note all patients had US postal codes