| ID | product.analytics.deid_pipeline.date_shifter |
|---|---|
| Description | Shifts dates by per-patient salt. |
| Key | date_shifter |
| Type | component |
| Team | Analytics & Research |
| Status | active |
| Attributes | method: per-patient salt, preserves: relative timing |
| Tags |
Table of contents
Guide
Date Shifter
The Date Shifter offsets dates by a per-patient salt so relative timing within a patient is preserved while calendar dates are not re-identifiable.
Preserve relative timing
Lab sequences and visit order stay clinically meaningful inside a cohort even though absolute dates are shifted.
Responsibilities
- Consistent shift per patient across all events in the export batch.