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Improved detection of depression in primary care through severity evaluation
Donald E Nease1, Michael S Klinkman, Robert J Volk
1Department of Family Medicine, University of Michigan, Ann Arbor, USA.
The Journal of Family Practice
|January 24, 2003
Summary
Adding a depression severity measure to a standard depression screener (PRIME-MD) effectively identified patients with severe symptoms and significant impairment. This approach can reduce clinician workload by one-third, focusing treatment on those most in need.
Area of Science:
- Primary Care
- Mental Health Screening
- Depression Diagnosis
Background:
- Depression screening in primary care can be challenging due to difficulties in differentiating symptom severity and impairment.
- Existing screeners like the PRIME-MD (Primary Care Evaluation of Mental Disorders) rely on Diagnostic and Statistical Manual of Mental Disorders-Third Edition, Revised (DSM-III-R) criteria.
Purpose of the Study:
- To evaluate if augmenting the PRIME-MD with a symptom severity measure could improve depression screening efficiency by filtering out patients with minimal impairment.
- To assess the impact of this combined approach on patient outcomes and healthcare utilization.
Main Methods:
- Secondary data analysis of 1317 patients from a university family practice center.
- Utilized a 6-item depression severity instrument in conjunction with the PRIME-MD.
- Assessed cross-sectional, health-related quality-of-life (SF-36 MCS scores) and healthcare utilization outcomes.
Main Results:
- The combined approach categorized 71% of depressed subjects as severely symptomatic and 29% as minimally symptomatic.
- Severely symptomatic subjects reported significantly worse mental health quality-of-life scores and higher healthcare utilization compared to minimally symptomatic subjects.
- Minimally symptomatic subjects showed similar quality-of-life scores to those without DSM-III-R mood disorder criteria but with severe symptoms.
Conclusions:
- A brief depression severity measure effectively distinguishes between severely and minimally symptomatic patients meeting depression criteria.
- Integrating a severity measure before a DSM-based screener can reduce clinician workload by approximately one-third.
- This strategy allows for focused treatment on patients most likely to benefit from intervention.