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Development of a data dictionary on viral hepatitis for the Philippines
Jan Michael M Herber1, Randy Joseph G Fernandez2, Geohari L Hamoy1
1UPM Standards and Interoperability Lab (UPM SILab), National Institutes of Health, University of the Philippines Manila, 547 Pedro Gil Street, Ermita, Manila 1000, National Capital Region, Philippines.
Oxford Open Digital Health
|April 15, 2025
Summary
Accurate viral hepatitis data in the Philippines is crucial for disease control. This study developed a standardized data dictionary to improve electronic medical record (EMR) data quality and enable better analysis for public health initiatives.
Area of Science:
- Public Health
- Infectious Diseases
- Health Informatics
Background:
- Viral hepatitis is endemic in the Philippines, yet a significant data gap exists between reported and actual cases.
- Efficient disease control necessitates reliable data, which is currently hindered by inconsistent data collection methods.
- The increasing adoption of electronic medical records (EMRs) presents an opportunity for improved data but requires standardization.
Purpose of the Study:
- To address the lack of reliable data for viral hepatitis in the Philippines.
- To develop a standardized data dictionary for viral hepatitis surveillance.
- To promote semantic interoperability of EMR data for improved public health insights.
Main Methods:
- Conducted consensus workshops with subject matter experts (epidemiologists, hepatologists, informaticists).
- Mapped 125 unique data elements from Department of Health-approved paper forms to international standard code sets.
- Leveraged existing international terminology standards for data element definitions.
Main Results:
- Developed a draft Philippine Viral Hepatitis Data Dictionary.
- Established a shared understanding of viral hepatitis care processes among stakeholders.
- Created computable representations of viral hepatitis care processes.
Conclusions:
- A standardized data dictionary is a prerequisite for semantic interoperability of EMR data.
- This initiative lays the groundwork for more accurate viral hepatitis surveillance in the Philippines.
- Improved data quality will enhance the effectiveness of viral hepatitis control strategies.
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