See how decisions about clinical data change research results. Compare the results before and after checking corrections, diagnosis status, units and dates, then trace each decision back to the original record.
Study definition
Adults with confirmed, active recorded diabetes. Select their latest eligible HbA1c.
Index = earliest qualifying recorded diagnosis date. Inclusive window. Final/corrected results in UCUM %. Threshold is illustrative.
A controlled comparison
Patient counts meeting the threshold under two* queries.
*The naive query ignores revisions, status, units and the study window. These fixtures deliberately
expose those failures (this is not a benchmark).
Patient decisions
| Patient | Study index | Selected HbA1c | Outcome | Explanation |
|---|
Follow the evidence
See how transformation decisions change a cohort result.
Follow each source revision, transformation check and study decision. Select a card to inspect its evidence.
Evidence graph unavailable
Purple paths identify the focused lineage. Scroll to zoom; drag the dotted canvas to pan. Every source revision remains available.