Variable breakdown
smoking_always_to_lungs
Section and category
Smoking.Details
Description
“Have you always inhaled the smoke into your lung when smoking?”
Additional information
| Metadata | |
|---|---|
| contents | Categorised |
| is_mandatory | No |
Data summary
Baseline
| value | freq | pct_valid | pct_tot |
|---|---|---|---|
| No | 20586 | 25.92 | 3.99 |
| Yes | 58822 | 74.08 | 11.41 |
| <NA> | 436005 | NA | 84.59 |
Resurvey 1
| value | freq | pct_valid | pct_tot |
|---|---|---|---|
| No | 923 | 30.94 | 4.66 |
| Yes | 2060 | 69.06 | 10.40 |
| <NA> | 16820 | NA | 84.94 |
Resurvey 2
| value | freq | pct_valid | pct_tot |
|---|---|---|---|
| No | 444 | 17.47 | 1.76 |
| Yes | 2097 | 82.53 | 8.30 |
| <NA> | 22711 | NA | 89.94 |
Between-survey agreement
Fleiss’ Kappa for m Raters:| N.participants | Surveys | Statistic | Coefficient | Z.statistic | p.value |
|---|---|---|---|---|---|
| 738 | 3 | Kappa | 0.059 | 2.792 | 0.005 |
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