Assessing depression in primary medical and psychiatric practices

Area of Science:

• Psychiatry
• Clinical Psychology
• Primary Care Medicine

Background:

• Accurate depression screening is crucial in both mental health and primary care settings.
• The Center for Epidemiological Studies Depression Scale (CES-D) is a widely used screening tool.
• Comparing CES-D performance against a structured diagnostic interview is essential for validating its utility.

Purpose of the Study:

• To evaluate the sensitivity and specificity of the CES-D in newly admitted outpatients.
• To compare CES-D results with diagnoses from the Diagnostic Interview Schedule (DIS).
• To identify optimal screening score thresholds for different clinical settings.

Main Methods:

• A two-stage assessment was conducted on outpatients at community mental health and primary medical care centers.
• The CES-D was administered as a screening tool.
• The DIS was used as a diagnostic standard for comparison.

Main Results:

• The CES-D demonstrated high sensitivity but relatively low specificity for depression.
• Screening scores significantly higher than usual are recommended for both patient populations.
• Primary care clinicians tended to underdiagnose depression, while psychiatric clinicians overdiagnosed it compared to the DIS.

Conclusions:

• The CES-D is a sensitive but not entirely specific measure for depression in outpatient settings.
• Adjusting screening score thresholds can enhance the efficiency of the CES-D.
• Discrepancies in diagnosis between primary care and psychiatric settings may stem from patient presentation, clinical expertise, and reimbursement factors.