Variable breakdown
co_mean
Section and category
Physical Exam.Lung CO
Description
“Mean CO ppm measurement (of the two taken)”
Additional information
| Metadata | |
|---|---|
| contents | No. of ppm |
| soft_min | 1 |
| soft_max | 99 |
| hard_min | 0 |
| hard_max | 199 |
| is_mandatory | No |
Data summary
Baseline
| mean | sd | min | q1 | med | q3 | max | mad | iqr | cv | skewness | se.skewness | kurtosis | n.valid | pct.valid |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 7.32 | 8.54 | 0 | 2 | 4 | 9 | 111 | 3.71 | 7 | 1.17 | 2.74 | 0 | 11.37 | 515413 | 100 |
Resurvey 1
| mean | sd | min | q1 | med | q3 | max | mad | iqr | cv | skewness | se.skewness | kurtosis | n.valid | pct.valid |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 6.75 | 7.21 | 1 | 2 | 4 | 8 | 93.5 | 2.97 | 6 | 1.07 | 2.34 | 0.02 | 7.44 | 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 | 0.544 | 0.364 |
| Resurvey1 | 0.544 | 1.000 | 0.400 |
| Resurvey2 | 0.364 | 0.400 | 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