Variable breakdown
emph_bronc_diag
Section and category
Medical History.Personal
Description
“Has a doctor EVER told you that you had emphysema/bronchitis?”
Additional information
| Metadata | |
|---|---|
| contents | Categorised |
| is_mandatory | Yes |
Data summary
Baseline
| value | freq | pct_valid | pct_tot |
|---|---|---|---|
| No | 502067 | 97.41 | 97.41 |
| Yes | 13346 | 2.59 | 2.59 |
| <NA> | 0 | NA | 0.00 |
Resurvey 1
| value | freq | pct_valid | pct_tot |
|---|---|---|---|
| No | 19318 | 97.55 | 97.55 |
| Yes | 485 | 2.45 | 2.45 |
| <NA> | 0 | NA | 0.00 |
Between-survey agreement
Fleiss’ Kappa for m Raters:| N.participants | Surveys | Statistic | Coefficient | Z.statistic | p.value |
|---|---|---|---|---|---|
| 19803 | 2 | Kappa | 0.372 | 52.408 | 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