: Data-Field 2207

Data-Field 2207

Description:	Wears glasses or contact lenses
Category:	Assessment centre ⏵ Touchscreen ⏵ Health and medical history ⏵ Eyesight
	Health outcomes + Self-reported medical conditions

Participants

501,472

Categorical (single)

Both sexes

Jan 2012

592,068

Data

Defined (4)

Mar 2023

Complete

Primary

d1 o1 s1

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Data

592,068 items of data are available, covering 501,472 participants, encoded using Data-Coding 100352.
Defined-instances run from 0 to 3, labelled using Instancing 2.

Graph illustrating main data

4 Instances

Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
501,450 participants, 501,450 items
Graph illustrating main data

Instance 1 : First repeat assessment visit (2012-13)
20,334 participants, 20,334 items
Graph illustrating main data

Instance 2 : Imaging visit (2014+)
64,924 participants, 64,924 items
Graph illustrating main data

Instance 3 : First repeat imaging visit (2019+)
5,360 participants, 5,360 items
Graph illustrating main data

Notes

ACE touchscreen question "Do you wear glasses or contact lenses to correct your vision?"

2 Related Data-Fields

Field ID	Description	Relationship
2217	Age started wearing glasses or conta ...	Field 2217 was collected from participants who indicated they wear glasses or contact lenses to correct their vision, as defined by their answers to Current Field
6147	Reason for glasses/contact lenses	Field 6147 was collected from participants who indicated they wear glasses or contact lenses to correct their vision, as defined by their answers to Current Field

2 Resources

Preview	Name	Res ID
	Screenshot from touchscreen questionnaire used to capture field 2207	100392
	Touchscreen questionnaire ordering, validation and dependencies	113241

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