Description: Reasons for flagging self-reported test date as invalid
This is a flat (unstructured) list which uses dates to represent categories or special values.
| Coding can be downloaded here as a tab-separated file. |
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| Coding | Meaning |
|---|---|
| 1902-01-01 | before kit despatched |
| 1900-01-01 | after test sample received by laboratory |
| Field ID | Description | Category |
|---|---|---|
| 28146 | Self-reported date when antibody test sample was collected | Wave 7 symptoms questionnaire |
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