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Published on: February 19, 2021
The comprehensive care project: measuring physician performance in ambulatory practice.
Eric S Holmboe1, Weifeng Weng, Gerald K Arnold
1American Board of Internal Medicine, 510 Walnut Street, Suite 1700, Philadelphia, PA 19106, USA. eholmboe@abim.org
Comprehensive physician performance assessment in ambulatory care is feasible, reliable, and valid. Composite measures for chronic and preventive care, using feasible patient sampling, can effectively evaluate physician quality.
Area of Science:
- Healthcare Quality
- Medical Performance Measurement
- Ambulatory Care
Background:
- Assessing physician performance in ambulatory settings is crucial for quality improvement.
- Existing methods may not comprehensively capture physician-level quality across various care domains.
Purpose of the Study:
- To evaluate the feasibility, reliability, and validity of a comprehensive physician performance assessment system.
- To determine the extent of within- and between-physician variation in performance.
- To assess the external validity of the performance measures.
Main Methods:
- Conducted a study involving general internists from 13 states.
- Audited medical records for chronic, acute, and preventive care services for 236 physicians.
- Quantified performance variation using intraclass correlation coefficients (ICC) and correlated with certification exam scores.
Main Results:
- Substantial variation in performance was observed both within and between physicians.
- Composite measures demonstrated robust reliability (0.88 for chronic care, 0.87 for preventive care).
- Higher certification exam scores correlated with better overall, chronic care, and preventive care performance.
Conclusions:
- Comprehensive assessment of physician performance in ambulatory care is achievable.
- Composite measures and feasible patient sampling enhance the reliability and validity of quality assessments.
- This approach supports effective evaluation of chronic and preventive care quality.
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