Table 3. Predictors of Standardized PHQ-9 and BDI-II Difference Scores.

Predictor Variables	Full Model	Reduced Model 1	Reduced Model 2	Reduced Model 3	Reduced Model 4	Reduced Model 5	Reduced Model 6	Final Model
Age	0.0006†	Dropped	---	---	---	---	---	---
	(0.005)€
	0.90
Race							Dropped	---
Black / African American	0.069	0.069	0.069	0.071	0.068	0.056
	(0.075)	(0.075)	(0.074)	(0.073)	(0.073)	(0.073)
	0.36	0.35	0.35	0.33	0.36	0.44
Other	0.220	0.220	0.221	0.222	0.231	0.235
	(.140)	(0.140)	(0.139)	(0.139)	(0.138)	(0.138)
	0.12	0.12	0.11	0.11	0.10	0.09
Overall Race Effect p value	0.26	0.26	0.25	0.24	0.23	0.23
Education	0.038	0.038	0.039	0.038	0.042	0.040	0.040	Dropped
	(0.024)	(0.023)	(0.023)	(0.023)	(0.023)	(0.23)	(0.023)
	0.11	0.10	0.10	0.10	0.07	0.08	0.08
Number of Chronic Health Conditions	-0.004	-0.004	-0.003	Dropped	---	---	---	---
	(0.019)	(0.019)	(0.018)
	0.85	0.85	0.88
Depression History	0.079	0.079	0.080	0.076	0.081	Dropped	---	---
	(0.081)	(0.081)	(0.081)	(0.076)	(0.075)
	0.34	0.33	0.32	0.31	0.29
Number of Symptoms	0.005	0.005	0.006	0.005	Dropped	---	---	---
	(0.007)	(0.007)	(0.006)	(0.005)
	0.42	0.41	0.37	0.34
BAI Total Score	0.0006	0.0007	Dropped	---	---	---	---	---
	(0.004)	(0.004)
	0.89	0.87
PSS Score	-0.012	-0.012	-0.012	-0.012	-0.010	-0.008	-0.009	-0.008
	(0.006)	(0.006)	(0.005)	(0.005)	(0.005)	(0.005)	(0.005)	(0.005)
	0.04*	0.03*	0.03*	0.03*	0.05	0.08	0.06	0.08
Constant	0.090	0.107	0.100	0.092	0.076	0.064	0.136	0.257
	(0.238)	(0.189)	(0.184)	(0.175)	(0.174)	(0.174)	(0.159)	(0.144)
Observations	305	305	305	305	305	305	305	305
R-squared	0.037	0.037	0.037	0.036	0.033	0.030	0.020	0.010

^†Unstandardized β coefficients;

^€Standard errors italicized in parentheses;

^*p = < .05;

^**p < .001.

Least significant variable dropped from model at each step until all predictors statistically significant.

Number of Symptoms based on standard primary care Review of Systems checklist; BAI = Beck Anxiety

Inventory; PSS = Perceived Stress Scale.