Variable breakdown

smoking_filter_cigs

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Section and category

Smoking.Details

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Description

“How many filter cigarettes (factory) do you usually smoke per day (or did you smoke before giving up)?”

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Additional information

	Metadata
validation	Soft max: Male: 60 ; Female: 40
contents	No./day
hard_min	0
hard_max	99
is_mandatory	Yes

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Data summary

Baseline

mean	sd	min	q1	med	q3	max	mad	iqr	cv	skewness	se.skewness	kurtosis	n.valid	pct.valid
15.6	11.09	0	7	18	20	99	11.86	13	0.71	0.87	0.01	1.74	166674	32.34

Resurvey 1

mean	sd	min	q1	med	q3	max	mad	iqr	cv	skewness	se.skewness	kurtosis	n.valid	pct.valid
16.2	11.22	0	8	20	20	90	14.83	12	0.69	0.86	0.03	1.53	6015	30.37

Resurvey 2

mean	sd	min	q1	med	q3	max	mad	iqr	cv	skewness	se.skewness	kurtosis	n.valid	pct.valid
16.52	11.59	0	9	20	20	99	14.83	11	0.7	1.04	0.03	2.66	6739	26.69

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Between-survey agreement

[1] “Spearman’s correlation matrix:”

	Baseline	Resurvey1	Resurvey2
Baseline	1.000	0.729	0.626
Resurvey1	0.729	1.000	0.649
Resurvey2	0.626	0.649	1.000

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International Coordinating Centre, China Kadoorie Biobank (CKB), CTSU, Nuffield Department of Population Health, University of Oxford Old Road Campus, Headington, Oxford, OX3 7LF

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Copyright China Kadoorie Biobank (CKB), University of Oxford, (2024)

Page generated: 27-02-2024