The use of the fecal occult blood test (FOBT) for colorectal cancer (CRC) screening is supported by randomized trials demonstrating effectiveness in cancer prevention and widely recommended by guidelines for this purpose. The fecal immunochemical test (FIT), as a direct measure of human hemoglobin in stool has a number of advantages relative to conventional FOBT and is increasingly used relative to that test. This review summarizes current evidence for FIT in colorectal neoplasia detection and the comparative effectiveness of FIT relative to other commonly used CRC screening modalities. Based on evidence, guidance statements on FIT application were developed and quality metrics for program implementation proposed.
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http://dx.doi.org/10.1038/ajg.2016.492 | DOI Listing |
Background: Healthcare is a major contributor to global greenhouse gas emissions. Colorectal cancer (CRC) screening is one of the most widely used healthcare services in the US, indicated for approximately 134 million adults. Recommended screening options include fecal immunochemical tests (FITs) every year, CT colonographies (CTCs) every 5 years, or colonoscopies every 10 years.
View Article and Find Full Text PDFBr J Gen Pract
January 2025
Newcastle University, Population Health Sciences Institute, Newcastle upon Tyne, United Kingdom.
Background: Faecal Immunochemical Testing (FIT) is now core to the management of patients presenting in primary care with symptoms of possible colorectal cancer. Patients with a positive FIT (≥10μg Hb/g faeces) qualify for an urgent suspected cancer referral. FIT negative patients are typically managed in primary care or referred through routine pathways.
View Article and Find Full Text PDFDig Dis Sci
January 2025
Division of Hospital and Specialty Medicine, Portland VA Medical Center, Portland, USA.
Background: Colorectal cancer screening with fecal immunochemical testing (FIT) is a process that depends on diagnostic colonoscopy for those with a positive test and completion of colonoscopy after positive FIT is an essential element of program effectiveness.
Aims: We examined how the COVID-19 pandemic influenced completion of diagnostic colonoscopy after positive FIT in our integrated healthcare system.
Methods: This was a retrospective study of all positive FIT over a 5-year period.
JAMA Netw Open
January 2025
Fred Hutchinson Cancer Research Center, Hutchinson Institute for Cancer Outcomes Research and Biostatistics Program, Public Health Sciences Division, Seattle, Washington.
Importance: Several noninvasive tests for colorectal cancer screening are available, but their effectiveness in settings with low adherence to screening and follow-up colonoscopy is not well documented.
Objective: To assess the cost-effectiveness of and outcomes associated with noninvasive colorectal cancer screening strategies, including new blood-based tests, in a population with low adherence to screening and ongoing surveillance colonoscopy.
Design, Setting, And Participants: The validated microsimulation model used for the decision analytical modeling study projected screening outcomes from 2025 to 2124 for a simulated cohort of 10 million individuals aged 50 years in 2025 and representative of a predominantly Hispanic or Latino patient population served by a Federally Qualified Health Center in Southern California.
J Gastroenterol Hepatol
January 2025
Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University, Xi'an, Shaanxi, China.
Background And Aim: Colorectal cancer (CRC) is a significant global health burden, and screening can greatly reduce CRC incidence and mortality. Previous studies investigated the economic effects of CRC screening. We performed a systematic review to provide the cost-effectiveness of CRC screening strategies across countries with different income levels.
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