: Data-Field 20014

Data-Field 20014

Description:	Method of recording time when operation occurred
Category:	Assessment centre ⏵ Verbal interview ⏵ Operations
	Health outcomes + Self-reported medical conditions

Participants

406,818

Categorical (single)

Both sexes

Feb 2012

1,136,872

Data

Defined (4)

Aug 2025

Complete

Primary

Yes (32)

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Data

1,136,872 items of data are available, covering 406,818 participants, encoded using Data-Coding 14.
Defined-instances run from 0 to 3, labelled using Instancing 2.
Array indices run from 0 to 31.

Graph illustrating main data

4 Instances

Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
390,829 participants, 867,219 items
Graph illustrating main data

Instance 1 : First repeat assessment visit (2012-13)
16,255 participants, 35,247 items
Graph illustrating main data

Instance 2 : Imaging visit (2014+)
76,847 participants, 198,742 items
Graph illustrating main data

Instance 3 : First repeat imaging visit (2019+)
12,612 participants, 35,664 items
Graph illustrating main data

Notes

Participants were able to record the time the operation took place by entering either their age or the year. Some participants recorded an operation but were unable to recall the time.

1 Related Data-Field

Field ID	Description	Relationship
20004	Operation code	Current Field indicates if date or age was recorded for Field 20004

1 Resource

Preview	Name	Res ID
	The verbal interview within ACE centres	100235

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