Data
26,298 items of data are available, covering 26,298 participants.
Some values have special meanings defined by Data-Coding
819.
| Maximum | 2025-07-01 |
| Decile 9 | 2018-09-10 |
| Decile 8 | 2015-01-23 |
| Decile 7 | 2011-07-30 |
| Decile 6 | 2008-08-27 |
| Median | 2005-10-13 |
| Decile 4 | 2003-02-17 |
| Decile 3 | 2000-07-19 |
| Decile 2 | 1998-03-21 |
| Decile 1 | 1991-01-01 |
| Minimum | 1950-02-01 |
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- There are 8584 distinct values.
- Mean = 2005-01-08
- 70 items below graph minimum of 1963-04-24
- 2 items have value 1902-02-02 (Code has event date matching participant's date of birth)
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Notes
Date of the first occurrence of any code mapped to 3-character ICD10 I83. The code corresponds to "varicose veins of lower extremities". Note that events which were apparently before birth were omitted when constructing this data field.
Coding 819 defines 6 special values:
- 1900-01-01 represents "Code has no event date"
- 1901-01-01 represents "Code has event date before participant's date of birth"
- 1902-02-02 represents "Code has event date matching participant's date of birth"
- 1903-03-03 represents "Code has event date after participant's date of birth and falls in the same calendar year as date of birth"
- 1909-09-09 represents "Code has event date in the future and is presumed to be a place-holder or other system default"
- 2037-07-07 represents "Code has event date in the future and is presumed to be a place-holder or other system default"
1 Related Data-Field
| Field ID | Description | Relationship |
|---|
| 131403 | Source of report of I83 (varicose ve ... | Field 131403 indicates the source of the outcome first reported in Current Field. |
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