Variable breakdown
has_metabolomic_data
Section and category
Biochemistry Data.Blood biomarkers (lab)
Description
“Does this participant have an entry in metabolomic_data for a baseline sample?, Does this participant have an entry in metabolomic_data for a resurvey1 sample?, Does this participant have an entry in metabolomic_data for a resurvey2 sample?”
Additional information
| Metadata | |
|---|---|
| contents | Categorised |
| is_mandatory | Yes |
Data summary
Baseline
| value | freq | pct_valid | pct_tot |
|---|---|---|---|
| No | 508221 | 98.6 | 98.6 |
| Yes | 7192 | 1.4 | 1.4 |
| <NA> | 0 | NA | 0.0 |
Resurvey 1
| value | freq | pct_valid | pct_tot |
|---|---|---|---|
| No | 19760 | 99.78 | 99.78 |
| Yes | 43 | 0.22 | 0.22 |
| <NA> | 0 | NA | 0.00 |
Resurvey 2
| value | freq | pct_valid | pct_tot |
|---|---|---|---|
| No | 25160 | 99.64 | 99.64 |
| Yes | 92 | 0.36 | 0.36 |
| <NA> | 0 | NA | 0.00 |
Between-survey agreement
Fleiss’ Kappa for m Raters:| N.participants | Surveys | Statistic | Coefficient | Z.statistic | p.value |
|---|---|---|---|---|---|
| 15005 | 3 | Kappa | 0.048 | 10.082 | 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