- Section and category
- Description
- Additional information
- Data summary
- Between-survey agreement
Variable breakdown
dob_d_anon
Section and category
Background.Basic
Description
“Day of birth - Anonymised (set to 15 for all participants)”
Additional information
| Metadata | |
|---|---|
| contents | Always 15 |
| soft_min | Age 33 |
| soft_max | Age 76 |
| hard_min | 0 |
| hard_max | 31 |
| is_mandatory | No |
Data summary
| mean | sd | min | q1 | med | q3 | max | mad | iqr | cv | skewness | se.skewness | kurtosis | n.valid | pct.valid |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 15 | 0 | 15 | 15 | 15 | 15 | 15 | 0 | 0 | 0 | NaN | 0 | NaN | 515413 | 100 |
Between-survey agreement
No agreement analysis available
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