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Statistical Process Control: A Quality Tool for a Venous Thromboembolic Disease Registry
Journal of Registry Management
|August 25, 2016
Summary
Statistical process control enhanced the Institutional Registry of Venous Thromboembolic Disease (IRTD) by monitoring key performance indicators. This quality tool effectively detected systematic issues in registry operations over time.
Area of Science:
- Clinical Informatics
- Quality Improvement Science
Background:
- The Institutional Registry of Venous Thromboembolic Disease (IRTD) is a prospective cohort registry at a tertiary hospital.
- Effective quality control is crucial for maintaining the integrity and performance of clinical registries.
Purpose of the Study:
- To implement and evaluate Statistical Process Control (SPC) as a quality management tool for the IRTD.
- To monitor and improve the operational performance of the IRTD.
Main Methods:
- Developed and applied process performance indicators (e.g., patient inclusion rate, evaluation time, loss to follow-up).
- Utilized control charts to visualize trends and detect deviations in monthly indicator measurements.
- Established a structured methodology for patient identification, inclusion, and data entry.
Main Results:
- Over 93 months, 25,757 patients were reported, with 6,798 meeting inclusion criteria.
- Median evaluation time was 20 hours (SD, 12), and 7.7% of patients were lost to evaluation.
- Indicators showed trends and inflexions, reflecting structural changes and improvement cycles within the registry.
Conclusions:
- Statistical Process Control effectively monitored IRTD performance, enabling the detection of systematic problems.
- The SPC approach is a reproducible quality tool applicable to other clinical registries.
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