biostudies-literatureKang MJNational Cancer CenterMinistry of Health and Welfare385-399https://www.ebi.ac.uk/biostudies/studies/S-EPMC10101796biostudies-literatureUnknown55(2)<h4>Purpose</h4>The current study provides national cancer statistics and their secular trends in Korea, including incidence, mortality, survival, and prevalence in 2020.<h4>Materials and methods</h4>Incidence, survival, and prevalence rates of cancer were calculated using the Korea National Cancer Incidence Database, from 1999 to 2020, with survival follow-up until December 31, 2021. Deaths from cancer were assessed using causes-of-death data obtained from Statistics Korea.<h4>Results</h4>The number of new cancer diagnoses in 2020 decreased by 9,218 cases (3.6%) compared to 2019. In 2020, newly diagnosed cancer cases and deaths from cancer were reported as 247,952 (age-standardized rate [ASR], 262.2 per 100,000) and 82,204 (ASR, 69.9 per 100,000), respectively. The overall cancer incidencCancer research and treatmentCancer Statistics in Korea: Incidence, Mortality, Survival, and Prevalence in 2020.PMC1010179622111102260020Bang SHChoi SHYun EHIm JSKim HJSeo HGKang MJJung KWPark EHCommunity of Population-Based Regional Cancer Registries*Kong HJfalseCancer Statistics in Korea: Incidence, Mortality, Survival, and Prevalence in 2020.<h4>Purpose</h4>The current study provides national cancer statistics and their secular trends in Korea, including incidence, mortality, survival, and prevalence in 2020.<h4>Materials and methods</h4>Incidence, survival, and prevalence rates of cancer were calculated using the Korea National Cancer Incidence Database, from 1999 to 2020, with survival follow-up until December 31, 2021. Deaths from cancer were assessed using causes-of-death data obtained from Statistics Korea.<h4>Results</h4>The number of new cancer diagnoses in 2020 decreased by 9,218 cases (3.6%) compared to 2019. In 2020, newly diagnosed cancer cases and deaths from cancer were reported as 247,952 (age-standardized rate [ASR], 262.2 per 100,000) and 82,204 (ASR, 69.9 per 100,000), respectively. The overall cancer incidenc2023-01-01T00:00:00Z2023 Apr2025-04-19T23:47:40.537Z2025-04-19T23:47:40.537ZS-EPMC101017963691524510.4143/crt.2023.447