Variable breakdown
siblings
Section and category
Medical History.Family
Description
“How many brothers & sisters do you have? (Including half siblings.)”
Additional information
| Metadata | |
|---|---|
| contents | No. of siblings, or empty if unknown |
| soft_max | 8 |
| hard_max | 99 |
| is_mandatory | No |
Data summary
Baseline
| mean | sd | min | q1 | med | q3 | max | mad | iqr | cv | skewness | se.skewness | kurtosis | n.valid | pct.valid |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3.46 | 1.78 | 0 | 2 | 3 | 5 | 70 | 1.48 | 3 | 0.51 | 0.84 | 0 | 11.37 | 514883 | 99.9 |
Resurvey 1
| mean | sd | min | q1 | med | q3 | max | mad | iqr | cv | skewness | se.skewness | kurtosis | n.valid | pct.valid |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3.54 | 1.8 | 0 | 2 | 3 | 5 | 51 | 1.48 | 3 | 0.51 | 1.32 | 0.02 | 24.57 | 19782 | 99.89 |
Resurvey 2
| mean | sd | min | q1 | med | q3 | max | mad | iqr | cv | skewness | se.skewness | kurtosis | n.valid | pct.valid |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3.62 | 1.82 | 0 | 2 | 3 | 5 | 15 | 1.48 | 3 | 0.5 | 0.51 | 0.02 | 0.69 | 25016 | 99.07 |
Between-survey agreement
[1] “Spearman’s correlation matrix:”| Baseline | Resurvey1 | Resurvey2 | |
|---|---|---|---|
| Baseline | 1.000 | 0.915 | 0.869 |
| Resurvey1 | 0.915 | 1.000 | 0.874 |
| Resurvey2 | 0.869 | 0.874 | 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