Variable breakdown
house_years_prev
Section and category
Pollution.Indoor pollution - Previous houses
Description
“How long did you live in your previous house (that you lived in for >=1 year)?”
Additional information
| Metadata | |
|---|---|
| validation | Hard max: Age - House_years_present + House_years_before_prev |
| contents | No. of years |
| hard_min | 1 |
| is_mandatory | No |
Data summary
Baseline
| mean | sd | min | q1 | med | q3 | max | mad | iqr | cv | skewness | se.skewness | kurtosis | n.valid | pct.valid |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 15.53 | 11.17 | 1 | 7 | 13 | 21 | 75 | 10.38 | 14 | 0.72 | 1.2 | 0 | 1.59 | 507627 | 98.49 |
Resurvey 1
| mean | sd | min | q1 | med | q3 | max | mad | iqr | cv | skewness | se.skewness | kurtosis | n.valid | pct.valid |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 15.65 | 11.11 | 1 | 7 | 13 | 21 | 75 | 10.38 | 14 | 0.71 | 1.23 | 0.02 | 1.83 | 19626 | 99.11 |
Resurvey 2
| mean | sd | min | q1 | med | q3 | max | mad | iqr | cv | skewness | se.skewness | kurtosis | n.valid | pct.valid |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 20.72 | 13.9 | 1 | 10 | 20 | 28 | 83 | 14.83 | 18 | 0.67 | 1.12 | 0.02 | 1.24 | 22214 | 87.97 |
Between-survey agreement
[1] “Spearman’s correlation matrix:”| Baseline | Resurvey1 | Resurvey2 | |
|---|---|---|---|
| Baseline | 1.000 | 0.49 | 0.279 |
| Resurvey1 | 0.490 | 1.00 | 0.290 |
| Resurvey2 | 0.279 | 0.29 | 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