Section IV: Insurance for Mental Health Care

Table 7. Regression analysis of Medicare payments
Variable		Model 1: Annual MH/SA Payments			Model 2: Annual Non-MH/SA Payments
Variable		Parameter Estimate		t-Statistic	Parameter Estimate		t-Statistic
Intercept		5.15		62.15	5.20		98.27
Main Effects
	Major depression	1.53		100.97	0.36		33.29
	Schizophrenia	1.79		95.67	-0.20		-14.05
	Other affective psychosis disorders	1.38		69.06	0.02		1.24
	Substance abuse	1.88		66.45	0.33		14.00
Interactions
	Major depression x substance abuse	-0.12		-2.16	-0.27		-5.39
	Schizophrenia x substance abuse	-0.77		-12.07	-0.06		-0.98
	Other affective psychosis disorders x substance abuse	-0.51		-6.78	-0.12		-1.81
Demographics
	Age-65	-0.04		-17.10	-0.01		-3.69
	(Age-65)	0.00		11.77	0.00		11.23
	Male	0.10		7.22	0.03		4.51
Race^a
	Black	0.07		3.63	-0.12		-12.20
	Hispanic	0.07		1.47	0.16		6.18
	Other race	0.04		0.94	-0.03		-1.76
Other initial reason for eligibility^b		0.11		5.14	0.25		26.01
Comorbidities
	Alzheimer's disease	0.71		34.42	0.40		29.44
	Anemia	0.19		10.50	0.82		93.70
	Asthma	0.11		4.26	0.77		60.08
	Cancer	0.07		3.68	1.03		125.02
	Cardiovascular disease	0.28		18.55	1.03		172.05
	Diabetes	0.01		0.39	0.47		62.91
	HIV/AIDS	0.34		4.51	1.06		18.58
	Liver disease	0.56		6.75	0.79		14.76
	Mental retardation/developmental delays	0.13		3.36	0.22		7.79
	Neurological disorders	0.59		29.93	1.01		85.42
	Nutritional disorders	0.40		23.24	1.26		138.11
	Other MH conditions	1.06		76.59	0.36		37.45
	Renal failure	-0.12		-3.20	0.94		50.81
Observations			75,317			323,628
R-Square			0.31			0.37
^a Referent is White. ^b Referent is aged as initial reason for eligibility.