combined_dep_and_ckb_logo

Section and category

Pollution.Indoor pollution - Previous houses


Description

“In your previous house, did your stove(s) all have a chimney / extractor?”


Additional information

Metadata
contents Categorised
is_mandatory No

Data summary

Baseline




value freq pct_valid pct_tot
Yes 135140 26.88 26.22
Not all stoves 195404 38.86 37.91
No 172267 34.26 33.42
<NA> 12602 NA 2.45

Resurvey 1




value freq pct_valid pct_tot
Yes 5338 27.34 26.96
Not all stoves 7302 37.40 36.87
No 6884 35.26 34.76
<NA> 279 NA 1.41




Between-survey agreement

Fleiss’ Kappa for m Raters:

N.participants Surveys Statistic Coefficient Z.statistic p.value
19201 2 Kappa 0.509 99.14 0


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:

Copyright China Kadoorie Biobank (CKB), University of Oxford, (2024)

Page generated: 27-02-2024