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Activity Number:
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285
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Type:
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Contributed
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Date/Time:
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Tuesday, August 4, 2009 : 8:30 AM to 10:20 AM
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Sponsor:
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Section on Health Policy Statistics
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| Abstract - #305745 |
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Title:
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Physician-Level Quality Measurement: Using Control Charts with National Benchmarks to Identify Common and Special Cause Variation in Patients' Systolic Blood Pressures
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Author(s):
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Gerald K. Arnold*+ and Rebecca S. Lipner and Lorna A. Lynn and Weifeng Weng and Eric S. Holmboe
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Companies:
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American Board of Internal Medicine and American Board of Internal Medicine and American Board of Internal Medicine and American Board of Internal Medicine and American Board of Internal Medicine
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Address:
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510 Walunut Street, Philadelphia, PA, 19106-3699,
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Keywords:
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Physician Performance ; Benchmarks ; Quality Improvement ; Individual Moving-Range Chart
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Abstract:
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Control charts that identify common or special cause variation in processes are used for physician-level quality measurement. The American Board of Internal Medicine's Maintenance of Certification program includes an assessment of physicians' efforts to improve the quality of patient care through web-based tools called Practice Improvement Modules. Using the Hypertension PIMSM, 283 physicians abstracted data from 7,215 medical records of their hypertensive patients. Systolic blood pressures for patients (n>=20) per physician are plotted with short-run, individual moving-range charts. Special cause variation is identified with standard sensitizing rules; rules using systolic BP benchmarks; systolic specification limits not exceeding 20 mm Hg above goals. The benchmark control chart measures quality and consistency of patient care relative to national standards at the physician level.
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