Data
81 items of data are available, covering 81 participants.
Some values have special meanings defined by Data-Coding 
819.
| Maximum | 2025-07-01 |  
| Decile 9 | 2010-12-30 |  
| Decile 8 | 2005-01-20 |  
| Decile 7 | 1996-03-21 |  
| Decile 6 | 1992-02-15 |  
| Median | 1990-04-01 |  
| Decile 4 | 1987-03-15 |  
| Decile 3 | 1985-08-16 |  
| Decile 2 | 1984-05-16 |  
| Decile 1 | 1980-05-31 |  
| Minimum | 1971-07-01 |  
 
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- There are 71 distinct values.
 
- Mean = 1993-05-06
 
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Notes
Date of the first occurrence of any code mapped to 3-character ICD10 A74. The code corresponds to "other diseases caused by chlamydiae". 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 | 
| 130125 | Source of report of A74 (other disea ... | Field 130125 indicates the source of the outcome first reported in Current Field. | 
 
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