Variable breakdown
house_years_before_prev
Section and category
Pollution.Indoor pollution - Previous houses
Description
“How long did you live in the house before your previous house (that you lived in for >=1 year)?”
Additional information
| Metadata | |
|---|---|
| validation | Hard max: Age - House_years_present + House_years_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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 14.93 | 9.38 | 1 | 6 | 15 | 22 | 69 | 10.38 | 16 | 0.63 | 0.52 | 0 | 0.17 | 392481 | 76.15 |
Resurvey 1
| mean | sd | min | q1 | med | q3 | max | mad | iqr | cv | skewness | se.skewness | kurtosis | n.valid | pct.valid |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 15.22 | 9.44 | 1 | 7 | 15 | 22 | 66 | 10.38 | 15 | 0.62 | 0.53 | 0.02 | 0.29 | 15807 | 79.82 |
Resurvey 2
| mean | sd | min | q1 | med | q3 | max | mad | iqr | cv | skewness | se.skewness | kurtosis | n.valid | pct.valid |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 17.04 | 9.5 | 1 | 10 | 19 | 22 | 76 | 8.9 | 12 | 0.56 | 0.62 | 0.02 | 1.54 | 13238 | 52.42 |
Between-survey agreement
[1] “Spearman’s correlation matrix:”| Baseline | Resurvey1 | Resurvey2 | |
|---|---|---|---|
| Baseline | 1.000 | 0.381 | 0.250 |
| Resurvey1 | 0.381 | 1.000 | 0.241 |
| Resurvey2 | 0.250 | 0.241 | 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