Variable breakdown
hep_b
Section and category
Physical Exam.Hep B
Description
“Hepatitis B test result from blood test”
Additional information
| Metadata | |
|---|---|
| contents | Categorised |
| is_mandatory | Yes |
Data summary
Baseline
| value | freq | pct_valid | pct_tot |
|---|---|---|---|
| Negative | 488020 | 96.21 | 94.69 |
| Positive | 15634 | 3.08 | 3.03 |
| Unclear | 3561 | 0.70 | 0.69 |
| Missing | 38 | 0.01 | 0.01 |
| <NA> | 8160 | NA | 1.58 |
Resurvey 1
| value | freq | pct_valid | pct_tot |
|---|---|---|---|
| Negative | 18985 | 96.24 | 95.87 |
| Positive | 652 | 3.31 | 3.29 |
| Unclear | 90 | 0.46 | 0.45 |
| Missing | 0 | 0.00 | 0.00 |
| <NA> | 76 | NA | 0.38 |
Between-survey agreement
Fleiss’ Kappa for m Raters:| N.participants | Surveys | Statistic | Coefficient | Z.statistic | p.value |
|---|---|---|---|---|---|
| 19414 | 2 | Kappa | 0.536 | 84.04 | 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