Colonoscopic Screening and Risk of All-Cause and Colorectal Cancer Mortality in Young and Older Individualsopen access
- Authors
- Lee, Jung Ah; Chang, Yoosoo; Kim, Yejin; Park, Dong-Il; Park, Soo-Kyung; Park, Hye Yin; Koh, Jaewoo; Lee, Soo-Jin; Ryu, Seungho
- Issue Date
- Apr-2023
- Publisher
- KOREAN CANCER ASSOCIATION
- Keywords
- Colorectal neoplasms; Cancer screening; Colonoscopy; All-cause mortality
- Citation
- CANCER RESEARCH AND TREATMENT, v.55, no.2, pp.618 - 625
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- CANCER RESEARCH AND TREATMENT
- Volume
- 55
- Number
- 2
- Start Page
- 618
- End Page
- 625
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/189356
- DOI
- 10.4143/crt.2022.852
- ISSN
- 1598-2998
- Abstract
- PURPOSE: The incidence of early-onset colorectal cancer (CRC) and associated mortality have been increasing. However, the potential benefits of CRC screening are largely unknown in young individuals. We aimed to evaluate the effect of CRC screening with colonoscopy on all-cause and CRC mortality among young (aged < 45 years) and older (aged ≥ 45 years) individuals.
Materials and Methods: This cohort study included 528,046 Korean adults free of cancer at baseline who underwent a comprehensive health examination. The colonoscopic screening group was defined as those who reported undergoing colonoscopy for CRC screening. Mortality follow-up until December 31, 2019 was ascertained based on nationwide death certificate data from the Korea National Statistical Office.
RESULTS: Colonoscopic screening was associated with a lower risk of all-cause mortality in both young and older individuals. Multivariable-adjusted time-dependent hazard ratios (95% confidence intervals) for all-cause mortality comparing ever- to never-screening were 0.86 (0.75-0.99) for young individuals and 0.71 (0.65-0.78) for older individuals. Colonoscopic screenings were also associated with a reduced risk of CRC mortality without significant interaction by age, although this association was significant only among participants aged ≥ 45 years, with corresponding time-dependent hazard ratios of 0.47 (0.15-1.44) for young individuals and 0.52 (0.31-0.87) for those aged ≥ 45 years.
CONCLUSION: Colonoscopic CRC screening decreased all-cause mortality among both young and older individuals, while significantly decreased CRC mortality was observed only in those aged ≥ 45 years. Screening initiation at an earlier age warrants more rigorous confirmatory studies.
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