Variable breakdown
co_second
Section and category
Physical Exam.Lung CO
Description
“Second CO ppm measurement”
Additional information
| Metadata | |
|---|---|
| validation | Soft min: 1 or (Co_first - 5), Soft max: 99 or (Co_first + 5), Hard min: 0 or (Co_first - 15), Hard max: 199 or; (Co_first + 15) |
| contents | No. of ppm |
| is_mandatory | No |
Data summary
Baseline
| mean | sd | min | q1 | med | q3 | max | mad | iqr | cv | skewness | se.skewness | kurtosis | n.valid | pct.valid |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 7.05 | 8.5 | 0 | 2 | 4 | 9 | 113 | 2.97 | 7 | 1.21 | 2.78 | 0 | 11.73 | 515413 | 100 |
Resurvey 1
| mean | sd | min | q1 | med | q3 | max | mad | iqr | cv | skewness | se.skewness | kurtosis | n.valid | pct.valid |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 6.62 | 7.2 | 1 | 2 | 4 | 8 | 93 | 2.97 | 6 | 1.09 | 2.34 | 0.02 | 7.48 | 19803 | 100 |
Resurvey 2
| mean | sd | min | q1 | med | q3 | max | mad | iqr | cv | skewness | se.skewness | kurtosis | n.valid | pct.valid |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 7.28 | 8.24 | 0 | 2 | 4 | 9 | 99 | 2.97 | 7 | 1.13 | 3.09 | 0.02 | 16.23 | 25028 | 99.11 |
Between-survey agreement
[1] “Spearman’s correlation matrix:”| Baseline | Resurvey1 | Resurvey2 | |
|---|---|---|---|
| Baseline | 1.000 | 0.558 | 0.363 |
| Resurvey1 | 0.558 | 1.000 | 0.389 |
| Resurvey2 | 0.363 | 0.389 | 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
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Copyright China Kadoorie Biobank (CKB), University of Oxford, (2024)
Page generated: 27-02-2024