Variable breakdown
specimen_results_read
Section and category
Biochemistry Data.Blood biomarkers (lab)
Description
“Date that the sample was analysed”
Additional information
| Metadata | |
|---|---|
| contents | Date |
| is_mandatory | No |
Data summary
Baseline
| Year_Quarter | freq | pct_valid | pct_tot |
|---|---|---|---|
| 2015.2 | 8788 | 47.86 | 1.71 |
| 2015.3 | 1676 | 9.13 | 0.33 |
| 2015.4 | 3003 | 16.36 | 0.58 |
| 2016.1 | 3867 | 21.06 | 0.75 |
| 2016.2 | 1026 | 5.59 | 0.20 |
| <NA> | 497053 | NA | 96.44 |
Resurvey 1
| Year_Quarter | freq | pct_valid | pct_tot |
|---|---|---|---|
| 2015.2 | 314 | 63.82 | 1.59 |
| 2015.3 | 151 | 30.69 | 0.76 |
| 2015.4 | 27 | 5.49 | 0.14 |
| <NA> | 19311 | NA | 97.52 |
Resurvey 2
| Year_Quarter | freq | pct_valid | pct_tot |
|---|---|---|---|
| 2015.2 | 592 | 45.29 | 2.34 |
| 2015.3 | 667 | 51.03 | 2.64 |
| 2015.4 | 40 | 3.06 | 0.16 |
| 2016.2 | 8 | 0.61 | 0.03 |
| <NA> | 23945 | NA | 94.82 |
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