Variable breakdown
has_copd
Section and category
Medical History.Personal
Description
“Participant has history of COPD (reported OR meets OLD (GOLD stage1+) criterion)”
Additional information
| Metadata | |
|---|---|
| contents | Categorised |
| is_mandatory | Yes |
Data summary
Baseline
| value | freq | pct_valid | pct_tot |
|---|---|---|---|
| No | 478224 | 92.78 | 92.78 |
| Yes | 37189 | 7.22 | 7.22 |
| <NA> | 0 | NA | 0.00 |
Resurvey 1
| value | freq | pct_valid | pct_tot |
|---|---|---|---|
| No | 16139 | 81.5 | 81.5 |
| Yes | 3664 | 18.5 | 18.5 |
| <NA> | 0 | NA | 0.0 |
Resurvey 2
| value | freq | pct_valid | pct_tot |
|---|---|---|---|
| No | 18318 | 73.11 | 72.54 |
| Yes | 6736 | 26.89 | 26.68 |
| <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 | 0.236 | 49.846 | 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