: Data-Field 1239

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Data

643,197 items of data are available, covering 501,087 participants, encoded using Data-Coding 100347.
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
501,046 participants, 501,046 items
Graph illustrating main data

Instance 1 : First repeat assessment visit (2012-13)
20,314 participants, 20,314 items
Graph illustrating main data

Instance 2 : Imaging visit (2014+)
100,917 participants, 100,917 items
Graph illustrating main data

Instance 3 : First repeat imaging visit (2019+)
20,920 participants, 20,920 items
Graph illustrating main data

Notes

ACE touchscreen question "Do you smoke tobacco now?"

15 Related Data-Fields

Field ID	Description	Relationship
3436	Age started smoking in current smokers	Field 3436 was collected from participants who indicated they currently smoke tobacco on most or all days, as defined by their answers to Current Field
3476	Difficulty not smoking for 1 day	Current Field affects who was asked to answer Field 3476
3486	Ever tried to stop smoking	Field 3486 was collected from participants who indicated they currently smoke tobacco on most or all days, as defined by their answers to Current Field
1269	Exposure to tobacco smoke at home	Field 1269 was collected from all participants except those who indicated they currently smoke tobacco on most or all days, as defined by their answers to Current Field
1279	Exposure to tobacco smoke outside home	Field 1279 was collected from all participants except those who indicated they currently smoke tobacco on most or all days, as defined by their answers to Current Field
3456	Number of cigarettes currently smoke ...	Current Field affects who was asked to answer Field 3456
1249	Past tobacco smoking	Field 1249 was collected from all participants except those who indicated they currently smoke on most or all days, as defined by their answers to Current Field
5959	Previously smoked cigarettes on most ...	Current Field affects who was asked to answer Field 5959
3506	Smoking compared to 10 years previous	Field 3506 was collected from participants who indicated they currently smoke tobacco on most or all days, as defined by their answers to Current Field
20116	Smoking status	Field 20116 is partially derived from Current Field
1259	Smoking/smokers in household	Field 1259 was collected from all participants except those who indicated they currently smoke tobacco on most or all days, as defined by their answers to Current Field
3466	Time from waking to first cigarette	Current Field affects who was asked to answer Field 3466
3446	Type of tobacco currently smoked	Field 3446 was collected from participants who indicated they currently smoke tobacco on most or all days, as defined by their answers to Current Field
3496	Wants to stop smoking	Field 3496 was collected from participants who indicated they currently smoke tobacco on most or all days, as defined by their answers to Current Field
6158	Why reduced smoking	Current Field affects who was asked to answer Field 6158

2 Resources

Preview	Name	Res ID
	Screenshot from touchscreen questionnaire used to capture field 1239	100291
	Touchscreen questionnaire ordering, validation and dependencies	113241

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