Data
1,771 items of data are available, covering 1,771 participants.
Some values have special meanings defined by Data-Coding 
819.
| Maximum | 2024-07-01 |  
| Decile 9 | 2021-04-07 |  
| Decile 8 | 2019-01-19 |  
| Decile 7 | 2016-12-06 |  
| Decile 6 | 2014-11-17 |  
| Median | 2012-01-20 |  
| Decile 4 | 2008-09-09 |  
| Decile 3 | 2005-05-06 |  
| Decile 2 | 2001-12-13 |  
| Decile 1 | 1997-06-18 |  
| Minimum | 1946-05-01 |  
 
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- There are 1526 distinct values.
 
- Mean = 2009-06-08
 
- 36 items below graph minimum of 1973-08-29
 
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Notes
Date of the first occurrence of any code mapped to 3-character ICD10 K41. The code corresponds to "femoral hernia". 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 | 
| 131615 | Source of report of K41 (femoral hernia) | Field 131615 indicates the source of the outcome first reported in Current Field. | 
 
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