Variable breakdown
nmr_xl_vldl_c_per_flag
Section and category
Biochemistry Data.Blood biomarkers (NMR)
Description
“Sample quality flag for nmr_xl_vldl_c_per”
Additional information
| Metadata | |
|---|---|
| contents | Categorised |
| is_mandatory | No |
Data summary
Baseline
| value | freq | pct_valid | pct_tot |
|---|---|---|---|
| No issues | 6684 | 92.91 | 1.3 |
| Very low concentration | 0 | 0.00 | 0.0 |
| Value was rejected by automatic sample and measurement quality control. | 0 | 0.00 | 0.0 |
| Value cannot be quantified due to detected irregularity in sample, see tags. | 0 | 0.00 | 0.0 |
| Not defined. Derived value or ratio cannot be given due to low concentration in original measures. | 510 | 7.09 | 0.1 |
| <NA> | 508221 | NA | 98.6 |
Resurvey 1
| value | freq | pct_valid | pct_tot |
|---|---|---|---|
| No issues | 42 | 97.67 | 0.21 |
| Very low concentration | 0 | 0.00 | 0.00 |
| Value was rejected by automatic sample and measurement quality control. | 0 | 0.00 | 0.00 |
| Value cannot be quantified due to detected irregularity in sample, see tags. | 0 | 0.00 | 0.00 |
| Not defined. Derived value or ratio cannot be given due to low concentration in original measures. | 1 | 2.33 | 0.01 |
| <NA> | 19760 | NA | 99.78 |
Resurvey 2
| value | freq | pct_valid | pct_tot |
|---|---|---|---|
| No issues | 88 | 95.65 | 0.35 |
| Very low concentration | 0 | 0.00 | 0.00 |
| Value was rejected by automatic sample and measurement quality control. | 0 | 0.00 | 0.00 |
| Value cannot be quantified due to detected irregularity in sample, see tags. | 0 | 0.00 | 0.00 |
| Not defined. Derived value or ratio cannot be given due to low concentration in original measures. | 4 | 4.35 | 0.02 |
| <NA> | 25160 | NA | 99.64 |
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