Data
75,457 items of data are available, covering 75,457 participants.
Some values have special meanings defined by Data-Coding
819.
| Maximum | 2025-07-01 |
| Decile 9 | 2016-08-25 |
| Decile 8 | 2010-01-01 |
| Decile 7 | 2005-01-01 |
| Decile 6 | 2000-04-01 |
| Median | 1995-05-01 |
| Decile 4 | 1989-07-01 |
| Decile 3 | 1981-08-01 |
| Decile 2 | 1971-03-01 |
| Decile 1 | 1960-02-01 |
| Minimum | 1938-08-01 |
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- There are 8588 distinct values.
- Mean = 1991-06-25
- 4 items have value 1901-01-01 (Code has event date before participant's date of birth)
- 10 items have value 1902-02-02 (Code has event date matching participant's date of birth)
- 7 items have value 1903-03-03 (Code has event date after participant's date of birth and falls in the same calendar year as date of birth)
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Notes
Date of the first occurrence of any code mapped to 3-character ICD10 J45. The code corresponds to "asthma". 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 |
|---|
| 131495 | Source of report of J45 (asthma) | Field 131495 indicates the source of the outcome first reported in Current Field. |
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