Variable breakdown
smoking_change
Section and category
Smoking.Details
Description
“Has your tobacco consumption changed significantly compared with that some years ago?”
Additional information
| Metadata | |
|---|---|
| contents | Categorised |
| is_mandatory | No |
Data summary
Baseline
| value | freq | pct_valid | pct_tot |
|---|---|---|---|
| About the same as before | 90130 | 70.16 | 17.49 |
| Has increased a lot | 20939 | 16.30 | 4.06 |
| Has decreased a lot | 17400 | 13.54 | 3.38 |
| <NA> | 386944 | NA | 75.07 |
Resurvey 1
| value | freq | pct_valid | pct_tot |
|---|---|---|---|
| About the same as before | 3491 | 77.46 | 17.63 |
| Has increased a lot | 549 | 12.18 | 2.77 |
| Has decreased a lot | 467 | 10.36 | 2.36 |
| <NA> | 15296 | NA | 77.24 |
Resurvey 2
| value | freq | pct_valid | pct_tot |
|---|---|---|---|
| About the same as before | 3274 | 67.35 | 12.97 |
| Has increased a lot | 744 | 15.31 | 2.95 |
| Has decreased a lot | 843 | 17.34 | 3.34 |
| <NA> | 20391 | NA | 80.75 |
Between-survey agreement
Fleiss’ Kappa for m Raters:| N.participants | Surveys | Statistic | Coefficient | Z.statistic | p.value |
|---|---|---|---|---|---|
| 2470 | 3 | Kappa | 0.171 | 19.463 | 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