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Section and category

Pollution.Indoor pollution - Previous houses


Description

“What was the main heating fuel used in your previous house?”


Additional information

Metadata
contents Categorised
is_mandatory No
is_dependent_on winter_heat_prev

Data summary

Baseline




value freq pct_valid pct_tot
Central heating 34201 12.48 6.64
Gas 190 0.07 0.04
Coal 127516 46.52 24.74
Wood 101813 37.15 19.75
Electricity 8466 3.09 1.64
Other 1909 0.70 0.37
<NA> 241318 NA 46.82

Resurvey 1




value freq pct_valid pct_tot
Central heating 1310 12.46 6.62
Gas 7 0.07 0.04
Coal 4910 46.71 24.79
Wood 4086 38.87 20.63
Electricity 194 1.85 0.98
Other 4 0.04 0.02
<NA> 9292 NA 46.92




Between-survey agreement

Fleiss’ Kappa for m Raters:

N.participants Surveys Statistic Coefficient Z.statistic p.value
9975 2 Kappa 0.77 103.461 0


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