Variable breakdown
study_date_month
Section and category
Background.Basic
Description
“Study date: Month”
Additional information
| Metadata | |
|---|---|
| contents | Two digit month |
| is_mandatory | Yes |
Data summary
Baseline
| mean | sd | min | q1 | med | q3 | max | mad | iqr | cv | skewness | se.skewness | kurtosis | n.valid | pct.valid |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 6.84 | 3.4 | 1 | 4 | 7 | 10 | 12 | 4.45 | 6 | 0.5 | -0.02 | 0 | -1.18 | 515413 | 100 |
Qc
| mean | sd | min | q1 | med | q3 | max | mad | iqr | cv | skewness | se.skewness | kurtosis | n.valid | pct.valid |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 6.87 | 3.45 | 1 | 4 | 7 | 10 | 12 | 4.45 | 6 | 0.5 | -0.02 | 0.02 | -1.17 | 15816 | 100 |
Resurvey 1
| mean | sd | min | q1 | med | q3 | max | mad | iqr | cv | skewness | se.skewness | kurtosis | n.valid | pct.valid |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 7.65 | 0.98 | 5 | 7 | 8 | 8 | 10 | 1.48 | 1 | 0.13 | -0.01 | 0.02 | 0 | 19803 | 100 |
Resurvey 2
| mean | sd | min | q1 | med | q3 | max | mad | iqr | cv | skewness | se.skewness | kurtosis | n.valid | pct.valid |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 7.61 | 3.11 | 1 | 5 | 8 | 10 | 12 | 4.45 | 5 | 0.41 | -0.29 | 0.02 | -0.91 | 25082 | 99.33 |
Between-survey agreement
Fleiss’ Kappa for m Raters:| N.participants | Surveys | Statistic | Coefficient | Z.statistic | p.value |
|---|---|---|---|---|---|
| 483 | 4 | Kappa | 0.086 | 13.778 | 0 |
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