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Evaluation of Electronic Medical Record Administrative data Linked Database (EMRALD)
The American Journal of Managed Care
|March 28, 2014
Summary
Primary care electronic medical records (EMRs) offer good data capture, especially for visits. Combining EMRs with administrative data is essential for a complete patient health picture.
Area of Science:
- Health Informatics
- Primary Care Research
- Data Management
Background:
- Electronic medical records (EMRs) in primary care are valuable research resources.
- Assessing EMR data completeness is crucial for reliable research and evaluation.
Purpose of the Study:
- To evaluate the completeness of primary care EMR data against administrative health data.
- To identify data gaps in EMRs for research applications.
Main Methods:
- Retrospective analysis of over 50,000 patients across 15 clinics in Ontario, Canada.
- Comparison of EMR data (physician billings, labs, medications, consultations, hospitalizations) with provincial administrative databases.
- Utilized the Electronic Medical Record Administrative data Linked Database (EMRALD) for data linkage.
Main Results:
- Primary care outpatient visits were captured at 94.4% in EMRALD.
- Specialist consultation letters and hospital discharge data showed lower capture rates (72.7% and 58.5% within 30 days).
- Common laboratory tests and dispensed medications were captured at rates of 67.3% and 68.2%, respectively.
Conclusions:
- EMRs provide reasonable data capture, with advantages in detailed clinical information and actual lab results.
- Combining EMR and administrative data is necessary for a comprehensive view of patient health.
- Further efforts are needed to enhance data completeness in primary care EMRs for robust research.
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