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6,777 items of data are available, covering 6,777 participants. Some values have special meanings defined by Data-Coding 819.
There are 4537 distinct values.
Mean = 2009-10-13
51 items below graph minimum of 1972-10-17
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 20 May 2022.
Date of the first occurrence of any code mapped to 3-character ICD10 M43. The code corresponds to "other deforming dorsopathies". Note that events which were apparently before birth were omitted when constructing this data field.