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Dalmat RR, Ziebell RA, Kamineni A, Phipps AI, Weiss NS, Breslau ES, Corley DA, Green BB, Halm EA, Levin TR, Schottinger JE, Chubak J. Risk of Colorectal Cancer and Colorectal Cancer Mortality Beginning Ten Years after a Negative Colonoscopy, among Screen-Eligible Adults 76 to 85 Years Old. Cancer Epidemiol Biomarkers Prev 2023; 32:37-45. [PMID: 36099431 PMCID: PMC9839620 DOI: 10.1158/1055-9965.epi-22-0581] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 08/18/2022] [Accepted: 09/06/2022] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Few empirical data are available to inform older adults' decisions about whether to screen or continue screening for colorectal cancer based on their prior history of screening, particularly among individuals with a prior negative exam. METHODS Using a retrospective cohort of older adults receiving healthcare at three Kaiser Permanente integrated healthcare systems in Northern California (KPNC), Southern California (KPSC), and Washington (KPWA), we estimated the cumulative risk of colorectal cancer incidence and mortality among older adults who had a negative colonoscopy 10 years earlier, accounting for death from other causes. RESULTS Screen-eligible adults ages 76 to 85 years who had a negative colonoscopy 10 years earlier were found to be at a low risk of colorectal cancer diagnosis, with a cumulative incidence of 0.39% [95% CI, 0.31%-0.48%) at 2 years that increased to 1.29% (95% CI, 1.02%-1.61%) at 8 years. Cumulative mortality from colorectal cancer was 0.04% (95% CI, 0.02%-0.08%) at 2 years and 0.46% (95% CI, 0.30%-0.70%) at 8 years. CONCLUSIONS These low estimates of cumulative colorectal cancer incidence and mortality occurred in the context of much higher risk of death from other causes. IMPACT Knowledge of these results could bear on older adults' decision to undergo or not undergo further colorectal cancer screening, including choice of modality, should they decide to continue screening. See related commentary by Lieberman, p. 6.
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Affiliation(s)
- Ronit R. Dalmat
- Department of Epidemiology, University of Washington, Seattle, USA
| | - Rebecca A. Ziebell
- Kaiser Permanente Washington Health Research Institute, Seattle, WA, USA
| | - Aruna Kamineni
- Kaiser Permanente Washington Health Research Institute, Seattle, WA, USA
| | - Amanda I. Phipps
- Department of Epidemiology, University of Washington, Seattle, USA.,Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Noel S. Weiss
- Department of Epidemiology, University of Washington, Seattle, USA.,Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Erica S. Breslau
- Division of Cancer Control and Population Sciences, National Cancer Institute, Bethesda, MD, USA
| | - Douglas A. Corley
- Division of Research, Kaiser Permanente Northern California, 2000 Broadway Street, Oakland, CA, USA.,Department of Gastroenterology, Kaiser Permanente San Francisco Medical Center, San Francisco, CA, USA
| | - Beverly B. Green
- Kaiser Permanente Washington Health Research Institute, Seattle, WA, USA
| | - Ethan A. Halm
- Department of Medicine, Robert Wood Johnson Medical School, New Brunswick, NJ, USA
| | - Theodore R. Levin
- Division of Research, Kaiser Permanente Northern California, 2000 Broadway Street, Oakland, CA, USA.,Department of Gastroenterology, Kaiser Permanente San Francisco Medical Center, San Francisco, CA, USA
| | - Joanne E. Schottinger
- Kaiser Permanente Bernard J Tyson School of Medicine, Department of Health Systems Science, Pasadena, CA
| | - Jessica Chubak
- Department of Epidemiology, University of Washington, Seattle, USA.,Kaiser Permanente Washington Health Research Institute, Seattle, WA, USA
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Dolatkhah R, Somi MH, Shabanloei R, Farassati F, Fakhari A, Dastgiri S. Main Risk Factors Association with Proto-Oncogene Mutations in Colorectal Cancer. Asian Pac J Cancer Prev 2018; 19:2183-2190. [PMID: 30139223 PMCID: PMC6171391 DOI: 10.22034/apjcp.2018.19.8.2183] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Objective: Although several factors have been shown to have etiological roles in colorectal cancer, few investigations
have addressed how and to what extent these factors affect the genetics and pathology of the disease. Precise relationships
with specific genetic mutations that could alter signaling pathways involved in colorectal cancer remain unknown.
We therefore aimed to investigate possible links between lifestyle, dietary habits, and socioeconomic factors and specific
mutations that are common in colorectal cancers. Methods: Data were retrieved from a baseline survey of lifestyle factors,
dietary behavior, and SES, as well as anthropometric evaluations during a physical examination, for 100 confirmed
primary sporadic colorectal cancer patients from Northwest Iran. Results: High socioeconomic status was significantly
associated with higher likelihood of a KRAS gene mutation (P < 0.05) (odds ratio: 3.01; 95% CI: 0.69–13.02). Consuming
carbohydrates and alcohol, working less, and having a sedentary lifestyle also increased the odds of having a KRAS
mutation. Conclusion: Although research has not yet described the exact relationships among genetic mutations with
different known risk factors in colorectal cancer, examples of the latter may have an impact on KRAS gene mutations.
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Affiliation(s)
- Roya Dolatkhah
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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The impact of BMI on early colorectal neoplastic lesions and the role of endoscopic diagnosis:. An Italian observational study. Int J Surg 2016; 33 Suppl 1:S71-5. [PMID: 27250694 DOI: 10.1016/j.ijsu.2016.05.049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
INTRODUCTION CRC often arises from polyps: an early detection and resection are effective in decreasing both incidence and mortality rate. Relation between risk factors, adenomas and CRC have been showed, but there is little evidence for overweight association with preneoplastic lesions. This study analyzed the correlation between body mass index (BMI) and primitive site of polyps. METHODS We performed a retrospective study, in a period between January 2010 and October 2014. Subjects aged 50 years and older who underwent their first-time screening colonoscopy were included. Reports regarding characteristic of the polyps were collected. RESULTS 142 patients were enrolled and they were divided into two groups: group I - patients with left sided colonic polyps, and group II - patients who right sided colonic polyps. The ANOVA test-one way, documents a difference between the BMI and the colon localization of polyps. CONCLUSIONS Patients with overweight had a higher risk to develop lesions in the left colon compared to patients with normal weight. Despite the fact that Italian epidemiological studies have found a prevalence of polyps of 44-53% in rectal-sigmoid segment, 32-36% in transverse segment and of 14-20% in right segment, we showed an incidence of 26.05% for right sided polyps, which maybe related with the eating habits of the territory.
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