Table 1

European case-control studies of residential radon and lung cancer

Mean measured radon concentration (Bq/m3)*
StudyMean year of diagnosisLung cancersControls
Austria91983267130
Czech Republic101981528493
Finland (nationwide)111989104103
Finland (south)121982221212
France131995138131
Germany (eastern)1419947874
Germany (western)1419934951
Italy151995113102
Spain161993123137
Sweden (nationwide)1719829994
Sweden (never smokers)1819907972
Sweden (Stockholm)191985131136
United Kingdom619915754
All studies199010497†

  • ↵* Estimate for each individual is time weighted average of measurements in different residences 5-34 years earlier.

  • ↵† Weighted average, with weights proportional to study specific numbers of lung cancer cases.