: Data-Field 20071

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Data

783 items of data are available, covering 783 participants, encoded using Data-Coding 71.
Defined-instances run from 0 to 0, labelled using Instancing 2.

CategoryCount

Declined4630
- Against participant wishes427
- Lack of time31
- Feeling unwell5
Equipment failure2830
- Malfunction39
- Not available244
Reason not known31
Unable40
- Other health reason4
Sample already provided2

Counts of participants/items last updated 19 Jul 2022.

Notes

Reason saliva sample was not collected (entered as free-text by a UK Biobank Staff member).

This field was created by post-hoc coding the free-text reasons entered during the assessment centre visit. The encoding used was constructed after the data had been examined to determine suitable representative groupings.

3 Categories

Category ID	Description	Items
100000	Assessment Centre	+3682
100001	Biological sampling	+10
100096	Saliva sample collection	2

0 Related Data-Fields

There are no related data-fields

2 Resources

Preview	Name	Res ID
	Saliva sampling procedures using ACE	100243
	Screenshot after urine/saliva sampling	100157

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