A new study shows that the percentage of adenocarcinoma (lung cancer in non-smokers) has increased continuously between 1971 and 2020, and in 2021 in Sweden, adenocarcinoma accounted for 55% of all lung cancer cases. One-year survival doubled and five-year survival tripled. The improvement in survival was slow until about the year 2000, when all survival measures improved and continued to improve for the rest of the study period.
Tichanek F, Försti A, Hemminki O, Hemminki A, Hemminki K.
Survival in Lung Cancer in the Nordic Countries Through A Half Century.
Clin Epidemiol. 2023;15:503-510