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10,167 items are available, covering 10,167 participants. Units of measurement are records.
There are 6 distinct values.
Mean = 1.28396
Std.dev = 0.51678
22 items above graph maximum of 3
Counts of participants/items last updated 13 Apr 2019.
This field indicates (for each participant) the number of in-patient Health Episode Statistics (HES) records in the UKB repository which contain "Date of first antenatal assessment" information. Participants with zero records are not itemised.
Date of first antenatal assessment is the date when the pregnancy was first assessed and arrangements for antenatal care were made.
In order to conduct analyses using this information, researchers must include this data-field in their application, however access will be given in-situ rather than as a download.