Variable breakdown
taking_aspirin
Section and category
Medical History.Personal
Description
“Are you currently taking aspirin?”
Additional information
| Metadata | |
|---|---|
| contents | Categorised |
| is_mandatory | No |
Data summary
Baseline
| value | freq | pct_valid | pct_tot |
|---|---|---|---|
| No | 57407 | 91.35 | 11.14 |
| Yes | 5434 | 8.65 | 1.05 |
| <NA> | 452572 | NA | 87.81 |
Resurvey 1
| value | freq | pct_valid | pct_tot |
|---|---|---|---|
| No | 2566 | 89.66 | 12.96 |
| Yes | 296 | 10.34 | 1.49 |
| <NA> | 16941 | NA | 85.55 |
Resurvey 2
| value | freq | pct_valid | pct_tot |
|---|---|---|---|
| No | 5711 | 81.82 | 22.62 |
| Yes | 1269 | 18.18 | 5.03 |
| <NA> | 18272 | NA | 72.36 |
Between-survey agreement
Fleiss’ Kappa for m Raters:| N.participants | Surveys | Statistic | Coefficient | Z.statistic | p.value |
|---|---|---|---|---|---|
| 952 | 3 | Kappa | 0.152 | 8.121 | 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