Evaluating Depression Care Management in a Community Setting: Main Outcomes for a Medicaid HMO Population with Multiple Medical and Psychiatric Comorbidities

Table 2

Longitudinal analysis of PHQ-9 scores over time.

	Coefficient	SE	P value
Independent variables
Intercept	10.49	1.60	<.0001
Age	.02	.02	.4908
Race/ethnicity			.8429
Non-Hispanic white (ref) 4	0	—
African American 3	−.13	.81
Hispanic 2	−.50	.56
Other 1	−.29	.91
Marital status			.0219
Married (ref)	0	—
Widowed 4	−2.41	1.17
Separated/divorced 3	.50	.66
Single 2	−.60	.70
Unknown 1	−1.62	1.08
Non-English speaking	2.43	1.16	.0373
Bipolar disorder	2.20	.55	<.0001
Psychotic disorder	.75	.93	.3635
Anxiety	.15	.76	.8465
Diabetes	.62	.50	.2205
Cardiovascular disease	−.07	.62	.9088
Pulmonary disease	.52	.50	.2963
Slope terms
Change per month in DCM group	−.59	.04	<.0001
Difference in slope for non-English speaking	−.65	.31	.0380
Difference in slope for patients with anxiety	.23	.11	.0418