The trends in lung cancer 1-year/5-year relative period survival between 2004 and 2021. (A) 1-year relative period survival by sex, (B) 5-year relative period survival by sex; (C) 1-year relative period survival by age group, (D) 5-year relative period survival by age group; (E) 1-year relative period survival by comorbidity severity, (F) 5-year relative period survival by comorbidity severity. AAPC: average annual percent change, APC: annual percent change, CCI: Charlson Comorbidity Index. ∗Indicates significant (p ≥ 0.05) APC/AAPC.