: Data-Field 131808

Data-Field 131808

Description:	Date L83 first reported (acanthosis nigricans)
Category:	Health-related outcomes ⏵ First occurrences ⏵ Skin and subcutaneous tissue disorders

Participants

247

Date

Both sexes

Jul 2019

247

Data

Singular

Jun 2023

Ongoing

Derived

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Data

247 items of data are available, covering 247 participants.
Some values have special meanings defined by Data-Coding 819.

Maximum	2022-10-15
Decile 9	2021-04-19
Decile 8	2019-10-14
Decile 7	2017-08-15
Decile 6	2016-03-15
Median	2013-11-12
Decile 4	2011-08-04
Decile 3	2009-11-13
Decile 2	2005-12-11
Decile 1	2001-02-21
Minimum	1990-01-01

There are 242 distinct values.
Mean = 2012-11-09

Notes

Date of the first occurrence of any code mapped to 3-character ICD10 L83. The code corresponds to "acanthosis nigricans". 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"

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