- Section and category
- Description
- Additional information
- Data summary
- Between-survey agreement
Variable breakdown
f_ratio
Section and category
Physical Exam.Lung CO
Description
“Max FEV1 / Max FVC %”
Additional information
| Metadata | |
|---|---|
| contents | Percentage |
| hard_min | 1.25 |
| hard_max | 7000 |
| is_mandatory | No |
Data summary
| mean | sd | min | q1 | med | q3 | max | mad | iqr | cv | skewness | se.skewness | kurtosis | n.valid | pct.valid |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 84.53 | 8.55 | 10.14 | 80.43 | 85.19 | 89.96 | 620 | 7.07 | 9.53 | 0.1 | -0.34 | 0 | 41.36 | 515413 | 100 |
| mean | sd | min | q1 | med | q3 | max | mad | iqr | cv | skewness | se.skewness | kurtosis | n.valid | pct.valid |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 84.69 | 9.25 | 27.25 | 80.11 | 85.56 | 90.91 | 147.09 | 7.99 | 10.8 | 0.11 | -1.05 | 0.02 | 2.82 | 15816 | 100 |
| mean | sd | min | q1 | med | q3 | max | mad | iqr | cv | skewness | se.skewness | kurtosis | n.valid | pct.valid |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 78.18 | 10.74 | 9.26 | 73.06 | 79.02 | 84.48 | 138.03 | 8.41 | 11.42 | 0.14 | -0.73 | 0.02 | 1.83 | 19480 | 98.37 |
| mean | sd | min | q1 | med | q3 | max | mad | iqr | cv | skewness | se.skewness | kurtosis | n.valid | pct.valid |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 74.02 | 10.04 | 23.36 | 69.87 | 75.7 | 80.07 | 177.42 | 7.29 | 10.2 | 0.14 | -0.79 | 0.02 | 4.04 | 24297 | 96.22 |
Between-survey agreement
[1] “Spearman’s correlation matrix:”| Baseline | Qc | Resurvey1 | Resurvey2 | |
|---|---|---|---|---|
| Baseline | 1.000 | 0.669 | 0.424 | 0.401 |
| Qc | 0.669 | 1.000 | 0.524 | 0.407 |
| Resurvey1 | 0.424 | 0.524 | 1.000 | 0.493 |
| Resurvey2 | 0.401 | 0.407 | 0.493 | 1.000 |
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