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Implementing preventive services. Success and failure in an outpatient trial.
1Division of General Internal Medicine, University of Washington, Seattle.
Archives of Internal Medicine
|December 1, 1990
Summary
Physicians often fail to provide preventive care. A health promotion clinic significantly increased screening, counseling, and immunization rates, unlike physician-focused or patient education methods.
Area of Science:
- Preventive Medicine
- Health Services Research
- Clinical Trial Methodology
Background:
- Physicians acknowledge the importance of preventive services but demonstrate low rates in delivering screening, counseling, and immunizations.
- Existing healthcare models struggle to integrate and consistently provide preventive care within routine clinical practice.
Purpose of the Study:
- To evaluate the effectiveness of three distinct delivery models for preventive services.
- To compare a physician-oriented model, a patient education model, and a dedicated health promotion clinic against usual care.
Main Methods:
- A randomized controlled trial involving 1224 male outpatients over five years (1981-1986).
- Intervention groups included: physician education with feedback, patient-mailed educational materials, and a health promotion clinic.
- A control group received standard medical care.
Main Results:
- Baseline rates for 12 age-specific preventive activities were below 25%.
- Physician-oriented and patient education models showed no significant improvement in prevention rates.
- The health promotion clinic model effectively tripled prevention rates within the first year and maintained these elevated levels throughout the study.
Conclusions:
- Changing established physician and patient behaviors within traditional clinic settings is challenging.
- A dedicated health promotion clinic is a viable, cost-effective strategy that improves patient access to preventive services and bypasses systemic barriers.