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24,177 items of data are available, covering 24,177 participants. Some values have special meanings defined by Data-Coding 819.
There are 8161 distinct values.
Mean = 2003-04-21
102 items below graph minimum of 1971-09-01
2 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)
Counts of participants/items last updated 25 Jul 2021.
Date of the first occurrence of any code mapped to 3-character ICD10 J02. The code corresponds to "acute pharyngitis". Note that events which were apparently before birth were omitted when constructing this data field.