Table 1.

Demographic Comparison of DPC Enrollees and Usual Care Patients Completing 18-Month Assessments

Variable	DPC Enrollees (n=120)	Usual Care (n=65)	P Value
DPC = Depression in Primary Care; PHQ = Physician health Questionnaire.
^a Assessed using t test.
^b Assessed using χ².
^c Available for only the subset of DPC enrollees who completed questionnaires.
Mean age, y	46.1	46.0	.96^a
Female, %	79.2	70.7	.20^b
Insurance type, %
Health maintenance organization	48.7	48.3
Fee for service	39.3	40.3
Medicare	9.4	6.5
Other (Medicaid/safety net)	2.6	4.8	.79^b
Ethnic/racial minority, %	5.0	6.3	.72^b
Self-reported conditions, %
Heart disease	7.5	4.6	.42^b
Diabetes	10.8	16.9	.24^b
Asthma	12.5	20.0	.17^b
Chronic obstructive pulmonary disease	5.0	6.2	.74^b
Comorbid medical problems, %
0	68.3	61.5
1	25.8	29.2
2	4.2	7.7
3 or more	1.7	1.5	.69^b
Known recurrent (>3 episodes) or chronic depression, %	65.8	76.6	.18^b
Taking antidepressant medication before intake/baseline, %	60.8	71.9	.18^b
Mean PHQ-8 score at entry	10.98	9.94	.24^a
Self-reported lifetime history, %	(n=26)	(n=65)
Bipolar disorder^c	15.4	15.6	.98^b
Anxiety disorder^c	30.8	36.4	.61^b
Panic disorder^c	19.2	9.2	.17^b