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Section and category

Medical History.Family


Description

“Has your mother had a heart attack?”


Additional information

Metadata
contents Categorised
is_mandatory No

Data summary

Baseline




value freq pct_valid pct_tot
No 507653 98.66 98.49
Yes 6912 1.34 1.34
<NA> 848 NA 0.16

Resurvey 1




value freq pct_valid pct_tot
No 19494 98.61 98.44
Yes 275 1.39 1.39
<NA> 34 NA 0.17

Resurvey 2




value freq pct_valid pct_tot
No 24439 97.81 96.78
Yes 547 2.19 2.17
<NA> 266 NA 1.05




Between-survey agreement

Fleiss’ Kappa for m Raters:

N.participants Surveys Statistic Coefficient Z.statistic p.value
14821 3 Kappa 0.24 50.601 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