Variable breakdown
walking_short_of_breath
Section and category
Medical History.Lungs
Description
“If you were walking on level ground with other healthy people of the same age, would you usually become short of breath?”
Additional information
| Metadata | |
|---|---|
| contents | Categorised |
| is_mandatory | Yes |
Data summary
Baseline
| value | freq | pct_valid | pct_tot |
|---|---|---|---|
| Yes | 30501 | 5.92 | 5.92 |
| No | 484472 | 94.00 | 94.00 |
| Disabled | 440 | 0.09 | 0.09 |
| <NA> | 0 | NA | 0.00 |
Resurvey 1
| value | freq | pct_valid | pct_tot |
|---|---|---|---|
| Yes | 877 | 4.43 | 4.43 |
| No | 18909 | 95.49 | 95.49 |
| Disabled | 17 | 0.09 | 0.09 |
| <NA> | 0 | NA | 0.00 |
Resurvey 2
| value | freq | pct_valid | pct_tot |
|---|---|---|---|
| Yes | 2746 | 10.96 | 10.87 |
| No | 22215 | 88.67 | 87.97 |
| Disabled | 93 | 0.37 | 0.37 |
| <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 | 0.144 | 30.964 | 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