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Section and category

Tea Consumption.Basic

Description

“During the past 12 months, how often did you drink any tea?”

Additional information

Metadata
contents Categorised
is_mandatory Yes

Data summary

Baseline




value freq pct_valid pct_tot
Never or almost never 182956 35.50 35.50
Only occasionally 125945 24.44 24.44
Only at certain seasons 14621 2.84 2.84
Every month but less than weekly 20003 3.88 3.88
Usually at least once a week 171888 33.35 33.35
<NA> 0 NA 0.00

Qc




value freq pct_valid pct_tot
Never or almost never 5491 34.72 34.72
Only occasionally 3413 21.58 21.58
Only at certain seasons 479 3.03 3.03
Every month but less than weekly 681 4.31 4.31
Usually at least once a week 5752 36.37 36.37
<NA> 0 NA 0.00

Resurvey 1




value freq pct_valid pct_tot
Never or almost never 7760 39.19 39.19
Only occasionally 5173 26.12 26.12
Only at certain seasons 680 3.43 3.43
Every month but less than weekly 675 3.41 3.41
Usually at least once a week 5515 27.85 27.85
<NA> 0 NA 0.00

Resurvey 2




value freq pct_valid pct_tot
Never or almost never 12799 51.09 50.69
Only occasionally 4236 16.91 16.77
Only at certain seasons 356 1.42 1.41
Every month but less than weekly 500 2.00 1.98
Usually at least once a week 7163 28.59 28.37
<NA> 198 NA 0.78



Between-survey agreement

Fleiss’ Kappa for m Raters:

N.participants Surveys Statistic Coefficient Z.statistic p.value
483 4 Kappa 0.433 35.928 0


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