Variable breakdown
chd_now
Section and category
Medical History.Personal
Description
“Are you still on treatment for chronic heart disease?”
Additional information
| Metadata | |
|---|---|
| contents | Categorised |
| is_mandatory | No |
| is_dependent_on | chd_diag |
Data summary
Baseline
| value | freq | pct_valid | pct_tot |
|---|---|---|---|
| No | 6786 | 43.46 | 1.32 |
| Yes | 8829 | 56.54 | 1.71 |
| <NA> | 499798 | NA | 96.97 |
Resurvey 1
| value | freq | pct_valid | pct_tot |
|---|---|---|---|
| No | 275 | 42.64 | 1.39 |
| Yes | 370 | 57.36 | 1.87 |
| <NA> | 19158 | NA | 96.74 |
Between-survey agreement
Fleiss’ Kappa for m Raters:| N.participants | Surveys | Statistic | Coefficient | Z.statistic | p.value |
|---|---|---|---|---|---|
| 323 | 2 | Kappa | 0.42 | 7.552 | 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