Section and category

Tea Consumption.Details

Description

“On days when you drink tea, how many cups do you usually drink?”

Additional information

	Metadata
contents	No. of cups
soft_max	19
hard_min	1
hard_max	99
is_mandatory	Yes

Data summary

Baseline

mean	sd	min	q1	med	q3	max	mad	iqr	cv	skewness	se.skewness	kurtosis	n.valid	pct.valid
4.24	2.95	1	2	3	6	70	1.48	4	0.7	2.23	0.01	12.61	171888	33.35

Resurvey 1

mean	sd	min	q1	med	q3	max	mad	iqr	cv	skewness	se.skewness	kurtosis	n.valid	pct.valid
4.23	2.72	1	2	4	6	60	2.97	4	0.64	3.07	0.03	35.83	5515	27.85

Resurvey 2

mean	sd	min	q1	med	q3	max	mad	iqr	cv	skewness	se.skewness	kurtosis	n.valid	pct.valid
4.23	3.05	1	2	4	5	40	2.97	3	0.72	2.54	0.03	12.3	7164	28.37

Between-survey agreement

Fleiss’ Kappa for m Raters:

N.participants	Surveys	Statistic	Coefficient	Z.statistic	p.value
2420	3	Kappa	0.09	20.683	0

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

Tel: +44 (0)1865 743743 | Fax: +44 (0)1865 743985 | Email: ckbaccess@ndph.ox.ac.uk

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

Page generated: 27-02-2024

Variable breakdown

tea_cups_per_day