biostudies-literatureUnknown47Sung S<h4>Objectives</h4>This study aimed to determine the population-attributable fractions (PAFs) of cancers using various calculation methods and to estimate the PAFs of cancer incidence and mortality resulting from deficit in physical activity (DPA) from 2015 to 2030, based on data on prevalence rates.<h4>Methods</h4>The PAF of cancer was estimated using a cohort study-based meta-analysis of relative risk (RR), national prevalence rates of DPA from 2000 to 2015, and national cancer statistics from 2015 to 2030, with a latency of 15 years.<h4>Results</h4>In 2015, DPA contributed to 909 cancer cases and 548 deaths, accounting for 0.42% and 0.68% of new cancer cases and deaths, respectively. By 2030, the PAF values are expected to increase to 1.31% of incidence and 1.80% of mortality, with a coEpidemiology and healthe2025010https://www.ebi.ac.uk/biostudies/studies/S-EPMC12531471biostudies-literaturePreventable cancer cases and deaths attributable to deficit of physical activity in Korea from 2015 to 2030.PMC12531471Lee SLee JEYi SWLim WKim KKim IYang SYKim JJee SHLee HSKo KPIm JSRyu SPark SKMoon SJung JSeo HGSung SAn JKweon SSPark SChoi SHHong YChoi JYShin AShin MHChoi YJfalsePreventable cancer cases and deaths attributable to deficit of physical activity in Korea from 2015 to 2030.<h4>Objectives</h4>This study aimed to determine the population-attributable fractions (PAFs) of cancers using various calculation methods and to estimate the PAFs of cancer incidence and mortality resulting from deficit in physical activity (DPA) from 2015 to 2030, based on data on prevalence rates.<h4>Methods</h4>The PAF of cancer was estimated using a cohort study-based meta-analysis of relative risk (RR), national prevalence rates of DPA from 2000 to 2015, and national cancer statistics from 2015 to 2030, with a latency of 15 years.<h4>Results</h4>In 2015, DPA contributed to 909 cancer cases and 548 deaths, accounting for 0.42% and 0.68% of new cancer cases and deaths, respectively. By 2030, the PAF values are expected to increase to 1.31% of incidence and 1.80% of mortality, with a co2025-01-01T00:00:00Z20252026-06-04T13:31:20.708Z2026-05-09T03:11:32.245ZS-EPMC125314714004558110.4178/epih.e2025010