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Section and category

Medical History.Personal


Description

“Has a doctor EVER told you that you had asthma?”


Additional information

Metadata
contents Categorised
is_mandatory Yes

Data summary

Baseline




value freq pct_valid pct_tot
No 512587 99.45 99.45
Yes 2826 0.55 0.55
<NA> 0 NA 0.00

Resurvey 1




value freq pct_valid pct_tot
No 19707 99.52 99.52
Yes 96 0.48 0.48
<NA> 0 NA 0.00

Resurvey 2




value freq pct_valid pct_tot
No 24788 98.94 98.16
Yes 266 1.06 1.05
<NA> 198 NA 0.78




Between-survey agreement

Fleiss’ Kappa for m Raters:

N.participants Surveys Statistic Coefficient Z.statistic p.value
14888 3 Kappa 0.193 40.892 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