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INSPIRE PEACH: USING OHDSI FOR HEALTH INFORMATICS IN MALAWI

Developing an ETL for the Malawi Integrated Disease Surveillance for COVID-19 in Malawi

Amelia Taylor, Gonjetso Chinyama, Moses Gwaza�Inspire PEACH project�Malawi University of Business and Applied Sciences, KuyeseraAI Lab

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Find this presentation at: https://shorturl.at/jxEIJ

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PROJECT AIM

To apply the OHDSI technologies to COVID-19 data in Malawi and Kenya and build an integrated ecosystem for sharing and analysing the data.

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Find this presentation at: https://shorturl.at/jxEIJ

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What does OHDSI offer?

  • A Common Data model and methodology to standardise medical data

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  • Open source tools for analysing and visualising observational health data

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  • Possibility to conduct studies of patient characterisation and prediction across multiple datasets, hospitals and countries.

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  • A community of practitioners/developers

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INSPIRE PEACH

  • Project site: https://inspiredata.network
  • MUBAS is a partner with others: APHRC, LSHTM, CODAT, SAPRIN

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INSPIRE PEACH cont’d

  • Setup stage involved using IDSR (Integrated Disease Surveillance and Response) data for COVID-19

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  • Initially we did not have the data. We generated synthetic data to which we applied individual level fidelity metrics.

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  • We then developed an ETL pipeline for standardising this data.

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Synthetic Malawi IDSR Data

The synthetic data was generated for the IDSR Case Based form for collecting C19 data used in Malawi.

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https://github.com/Inspire-Mubas/Malawi-IDSR-COVID-19-Synthetic-DataSet

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Synthetic Malawi IDSR Data cont’d

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Developing an ETL Pipeline

Transforming the Malawi IDSR data into a data standard called the OMOP Common Data Model.

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Developing an ETL Pipeline cont’d

This required:

Concepts and terms standardisation using medical vocabularies

Transforming data to the OMOP Common Data Model

Loading data to a database for analysis

All processes were developed with scalability and replicability principles in mind.

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The OMOP CDM

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Concepts Standardization

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CATEGORY

MW VALUES

VOCABULARY ID

CONCEPT ID

VACCINE NAME

AstraZeneca

SPL

43132746

SYMPTOMS

Abdominal Pain

SNOMED

200219

DIAGNOSIS

COVID-19

SNOMED

37311061

SAMPLE TYPE

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Blood Specimen

SNOMED

4001225

PATIENT TYPE

Inpatient

SNOMED

4212055

OUTCOMES

Alive

SNOMED

4230556

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Pentaho: ETL Tool

  • Open-source Business Intelligence (BI) suite
  • Provides a variety of tools for data integration, data analysis, and reporting
  • Pentaho is an ETL tool (Extract, Transform, and Load).

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Applying Pentaho to OMOP

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The Demographics group

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Lessons learned

Concept mapping is an essential process in healthcare data standardization because it helps to establish a common vocabulary and understanding of medical concepts across different healthcare systems and providers.

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Challenge - identifying the right concepts

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Lessons learned cont’d

The usage of Pentaho for performing the ETL is a bit flexible and offers visual drag and drop capabilities for building complex pipelines unlike just using like SQL only

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Lessons learned cont’d

From using Pentaho for the ETLs

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Overall, Pentaho can help healthcare organizations to standardize their data, improve data quality, promote interoperability, and comply with regulatory requirements.

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This, in turn, can lead to better decision-making, improved patient outcomes, and cost savings for healthcare organizations.

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Lessons learned cont’d

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Standardization in healthcare data is important because:

  • It ensures consistency, accuracy, and reliability of healthcare-related data across different healthcare systems and providers.

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  • End result:
    • healthcare professionals make reliable informed decisions
    • Also helps save costs to process and analyze data

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Further Work

  • The ETL pipeline is extended to real C19 data in Malawi and Kenya.

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  • Deploying a containerised OHDI infrastructure.

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  • Working on analysis using OHDSI tools.

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