What Is Health Data?

#Health information comes from different activities

Clinical data can come from care encounters, clinical trials and patient registries. Weng describes electronic records, administrative data and other sources used in research. The OECD also notes health and administrative records, monitoring devices and genomic technologies in its health-data governance recommendation.

These sources do not all answer the same question. Read why information was collected and what activity produced it. A dataset created during care is not automatically equivalent to one collected under a research protocol. The source and purpose are part of its meaning.

Evidence: Weng: clinical data quality across its life cycle / OECD: recommendation on health data governance

#The format is not the whole meaning

The ITU-T annotation report describes health-AI inputs including images, signals, text and numerical measurements. A picture, coded field and written note represent information in different ways; their interpretation depends on the task and context.

Weng discusses how recording and transformation can lose detail. Standardizing a field may make it easier to combine records without preserving every nuance of the original. Read the definitions and processing history, not only the column name or file format.

Evidence: ITU-T: data annotation specification (2023) / Weng: clinical data quality across its life cycle

#Personal data needs a separate governance question

In its recommendation, the OECD defines personal health data as information about an identified or identifiable individual that concerns health, including associated personal data. It distinguishes de-identified information from anonymous information and includes re-identification risks in its safeguards.

Useful data is not the same as unrestricted data. Read the purpose, permitted access and protections attached to a dataset. This recommendation concerns governance frameworks; it does not establish the legal basis for a particular transfer or override local requirements.

Evidence: OECD: recommendation on health data governance

#A source is not ready-made evidence

FDA's 2024 guidance page describes considerations for using electronic health records and medical claims in studies supporting drug and biological-product regulatory decisions. Its existence does not mean that every such dataset is accepted or suitable for every study.

Weng frames data quality as fitness for the intended use. Ask whether the information is relevant, sufficiently complete and understood in context before relying on a finding. This page is educational and does not claim that Mynd holds patient records, operates a health-data platform or provides a clinical interpretation service.

Evidence: FDA: scope of electronic-record and claims-data guidance (2024) / Weng: clinical data quality across its life cycle

Source note

The sections above were checked against the linked sources. No clinical review has been performed. This is general research education, not a clinical guideline.