Kiến trúc hệ thống

How well does OMOP CDM fit Vietnam? This article analyzes the policy context (Decision 3516/QĐ-BYT, Personal Data Protection Law 2025, Medical Examination and Treatment Law 15/2023, electronic health records on VNeID), Ministry of Health catalog mapping, custom vocabularies, and a roadmap for a national research data lake.

Duy TranMay 7, 202615 min

By 2026, mature organizations run both FHIR (operational) and OMOP (analytics). This article walks through resource ↔ table mapping, the FHIR-OMOP-on-FHIR working group, Pathling, the Bulk Data Export pipeline, and deployment patterns for Vietnam.

Duy TranMay 7, 202614 min

A 100M-event CDM in production behaves nothing like the Eunomia sample. This article covers schema design, indexing, partitioning by person_id, vacuum, backup, security under Vietnam's Personal Data Protection Law 2025 (effective Jan 1, 2026), audit logging, and vocabulary upgrades.

Duy TranMay 7, 202614 min

HADES (Health Analytics Data-to-Evidence Suite) is the OHDSI bundle of R packages for Patient-Level Estimation, Patient-Level Prediction, Characterization, and Self-Controlled Case Series. This article walks from install to publishing a network study.

Duy TranMay 7, 202616 min

ATLAS is the official OHDSI cohort builder; Data Quality Dashboard runs more than 3,000 quality checks; ACHILLES profiles each CDM. This article walks through installing Broadsea, defining cohorts, reading DQD, and acting on results.

Duy TranMay 7, 202614 min

ETL from a HIS/EHR/claims source to OMOP CDM takes 3-6 months from scratch. This article walks through the OHDSI standard pipeline: WhiteRabbit profiling, RabbitInAHat design, USAGI mapping, implementation with SQL/Perseus/dbt, and validation with DQD.

Duy TranMay 7, 202618 min

A deep dive into the seven most important tables in OMOP CDM 5.4 — schema, foreign keys, ETL conventions, common pitfalls (Measurement vs. Observation, Drug_Exposure vs. Drug_Era), and 10 popular RWE SQL patterns.

Duy TranMay 7, 202618 min

Vocabulary is the hardest but most important part of OMOP. This article explains Concepts, Standard vs. Source, Domain, Vocabulary, ConceptRelationship, and ConceptAncestor — plus the Athena download/lookup workflow for Vietnamese projects.

Duy TranMay 7, 202616 min

Which Common Data Model fits your organization? This article compares OMOP, FHIR, i2b2, PCORnet, and Sentinel across schema, vocabulary, governance, tooling, and use cases — and provides a decision tree to help you pick.

Duy TranMay 7, 202613 min

Real-World Evidence (RWE) is changing how the FDA, EMA, and other regulators make decisions. OMOP CDM is the data standard that lets you run a single study across hundreds of organizations at once. This article introduces OHDSI, CDM 5.4, and the Vietnam context.

Duy TranMay 7, 202614 min