: Data-Field 30004

Data-Field 30004

Description:	White blood cell (leukocyte) count acquisition route
Category:	Biological samples ⏵ Blood assays ⏵ Blood count ⏵ Blood count processing
	Biomarkers

Participants

479,014

Categorical (single)

Both sexes

Jan 2012

503,098

Data

Defined (3)

Feb 2016

Complete

Auxiliary

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Data

503,098 items of data are available, covering 479,014 participants, encoded using Data-Coding 2226.
Defined-instances run from 0 to 2, labelled using Instancing 2.

Graph illustrating main data

3 Instances

Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
477,835 participants, 477,835 items
Graph illustrating main data

Instance 1 : First repeat assessment visit (2012-13)
19,403 participants, 19,403 items
Graph illustrating main data

Instance 2 : Imaging visit (2014+)
5,860 participants, 5,860 items
Graph illustrating main data

Notes

Route whereby data for White blood cell (leukocyte) count was transferred from analyser device to UK Biobank core LIMS database.

2 Related Data-Fields

Field ID	Description	Relationship
30000	White blood cell (leukocyte) count	Current Field is the data route used to acquire the result in Field 30000
30002	White blood cell (leukocyte) count a ...	Current Field indicates how to interpret the time in Field 30002

3 Resources

Preview	Name	Res ID
	Coulter LH750 operator guide	7249
	Coulter LH750 reference	7248
	Haematology data processing summary	1453

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