: Data-Field 30234

Data-Field 30234

Description:	Nucleated red blood cell percentage acquisition route
Category:	Biological samples ⏵ Blood assays ⏵ Blood count ⏵ Blood count processing
	Biomarkers

Participants

477,723

Categorical (single)

Both sexes

Jan 2012

496,293

Data

Defined (3)

Aug 2025

Complete

Auxiliary

o1 s2

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Data

496,293 items of data are available, covering 477,723 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
476,740 participants, 476,740 items
Graph illustrating main data

Instance 1 : First repeat assessment visit (2012-13)
13,704 participants, 13,704 items
Graph illustrating main data

Instance 2 : Imaging visit (2014+)
5,849 participants, 5,849 items
Graph illustrating main data

Notes

Route whereby data for Nucleated red blood cell percentage was transferred from analyser device to UK Biobank core LIMS database.

2 Related Data-Fields

Field ID	Description	Relationship
30230	Nucleated red blood cell percentage	Current Field is the data route used to acquire the result in Field 30230
30232	Nucleated red blood cell percentage ...	Current Field indicates how to interpret the time in Field 30232

3 Resources

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

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