Variable breakdown
ast_invalid
Section and category
Biochemistry Data.Blood biomarkers (lab)
Description
“Is this result marked as invalid?”
Additional information
| Metadata | |
|---|---|
| contents | Categorised |
| is_mandatory | No |
Data summary
Baseline
| value | freq | pct_valid | pct_tot |
|---|---|---|---|
| No | 18175 | 99.96 | 3.53 |
| Yes | 8 | 0.04 | 0.00 |
| <NA> | 497230 | NA | 96.47 |
Resurvey 1
| value | freq | pct_valid | pct_tot |
|---|---|---|---|
| No | 486 | 99.79 | 2.45 |
| Yes | 1 | 0.21 | 0.01 |
| <NA> | 19316 | NA | 97.54 |
Resurvey 2
| value | freq | pct_valid | pct_tot |
|---|---|---|---|
| No | 1297 | 100 | 5.14 |
| Yes | 0 | 0 | 0.00 |
| <NA> | 23955 | NA | 94.86 |
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
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Copyright China Kadoorie Biobank (CKB), University of Oxford, (2024)
Page generated: 27-02-2024