: Data-Field 6157

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Data

186,425 items of data are available, covering 124,527 participants, encoded using Data-Coding 100361.
Defined-instances run from 0 to 3, labelled using Instancing 2.
Array indices run from 0 to 3.

Graph illustrating main data

4 Instances

Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
119,958 participants, 151,378 items
Graph illustrating main data

Instance 1 : First repeat assessment visit (2012-13)
5,066 participants, 6,488 items
Graph illustrating main data

Instance 2 : Imaging visit (2014+)
20,576 participants, 25,157 items
Graph illustrating main data

Instance 3 : First repeat imaging visit (2019+)
2,777 participants, 3,402 items
Graph illustrating main data

Notes

ACE touchscreen question "Why did you stop smoking? (You can select more than one answer)"

The following checks were performed:

If code -7 was selected, then no additional choices were allowed.
If code -1 was selected, then no additional choices were allowed.
If code -3 was selected, then no additional choices were allowed.

Field 6157 was collected from participants who indicated that in the past they smoked tobacco on most or all days, as defined by their answers to Field 1249 and that during the time they smoked they stopped for more than 6 months, as defined by their answers to Field 1249

3 Related Data-Fields

Field ID	Description	Relationship
2907	Ever stopped smoking for 6+ months	Field 2907 affects who was asked to answer Current Field
1249	Past tobacco smoking	Field 1249 affects who was asked to answer Current Field
10115	Why stopped smoking (pilot)	Field 10115 is the pilot-study predecessor of main-study Current Field

2 Resources

Preview	Name	Res ID
	Screenshot from touchscreen questionnaire used to capture field 6157	100491
	Touchscreen questionnaire ordering, validation and dependencies	113241

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