What a renal schema is for
Kidney research cohorts may collect information at different visits, use different laboratory reporting formats and define outcomes over different periods. A common schema gives teams a place to document how the target concept is defined, which measurements contribute to it and what evidence is required to compare data across cohorts.
What to document for a cross-study review
- Definition. Record the intended outcome or exposure, together with the measurement or diagnostic criteria used.
- Timing. Record the visit window and determine whether an analysis requires repeat observations or a baseline value.
- Measurement context. Preserve units, method, source and any known limitations relevant to interpretation.
- Derivation. Keep the derivation rules versioned so another reviewer can trace the result to the original data.
These are examples of metadata review, rather than a transcription of the historical renal variable catalogue. The archived homepage links to the renal section of the old application. See the original homepage capture and the schema overview for the project’s original structure.