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12,994 items of data are available, covering 10,168 participants. Array indices run from 0 to 5.
There are 3641 distinct values.
Mean = 2001-06-15
14 items above graph maximum of 2014-04-19
Counts of participants/items last updated 30 Oct 2020.
This field is a summary of the dates of the first antenatal assessment a participant has had recorded in their hospital inpatient records.
This field corresponds to the field ANASDATE on the HESIN_MATERNITY table; see the Inpatient Data Dictionary (Resource 141140) in Category 2000 for information about the HESIN_MATERNITY table.
In order to conduct detailed analyses of this data using the source information, researchers will need to gain access to the HESIN_MATERNITY and HESIN tables by adding Field 41261 and Field 41259 to their basket.