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371 items of data are available, covering 371 participants. Some values have special meanings defined by Data-Coding 819.
There are 348 distinct values.
Mean = 2003-01-08
Date of the first occurrence of any code mapped to 3-character ICD10 F19. The code corresponds to "mental and behavioural disorders due to multiple drug use and use of other psychoactive substances". Note that events which were apparently before birth were omitted when constructing this data field.