{"title":"Yield and Effectiveness of Two-Sample Fecal Immunochemical Test-based Screening Program for Colorectal Cancer.","authors":"Zenghao Xu, Jinhua Yang, Jiabei He, Qilong Li, Xinglin Fei, Hao Bai, Kai Gao, Yuanliang He, Chen Li, Mengling Tang, Jianbing Wang, Mingjuan Jin, Kun Chen","doi":"10.1016/j.cgh.2024.10.010","DOIUrl":null,"url":null,"abstract":"<p><strong>Background and aims: </strong>Colorectal cancer (CRC) incidence and mortality of China account for nearly 30% of the global attributable fraction. We aimed to estimate the yield and effectiveness of two-sample fecal immunochemical test (FIT)-based screening program in China.</p><p><strong>Methods: </strong>Eligible individuals were invited for two-sample FIT between 2007 and 2021, with positive ones (cutoff: 40 μg/g before 2013, and 20 μg/g thereafter) referred for colonoscopy. Participation rates, detection rates, and positive predictive values (PPVs) were calculated. Participants were classified into: FIT+ / colonoscopy compliers, FIT+ / colonoscopy non-compliers, and FIT- as controls. We compared CRC incidence and mortality, and calculated the age reaching comparable risk.</p><p><strong>Results: </strong>Among 246,349 invitees, 150,524 (61.10%) participated in two-sample FIT, with 16,994 (11.29%) identified as FIT+; 12,816 (75.41%) underwent colonoscopy, yielding a detection rate and PPV of 0.57% and 6.70% for advanced neoplasia. Median follow-up was 10.58 years. Compared with FIT- participants, CRC incidence and mortality were relatively similar among FIT+ / colonoscopy compliers with hazard ratio (HR) and 95% confidence interval (CI) of 0.94 (0.75-1.19) and 1.62 (1.09-2.41), but higher among non-compliers with HR and 95% CI of 3.52 (2.85-4.34) and 4.41 (2.96-6.55). Taking CRC incidence and mortality risk of FIT- participants at age 50.0 as the benchmark, FIT+ / colonoscopy compliers reached same risk at 50.6 and 46.1 years, while non-compliers at age 38.0 and 37.9 years, respectively.</p><p><strong>Conclusions: </strong>Two-sample FIT could effectively identify high-risk populations, and colonoscopy compliance is associated with a lower risk of CRC incidence and mortality. This strategy might facilitate CRC screening practice in countries with large populations.</p>","PeriodicalId":10347,"journal":{"name":"Clinical Gastroenterology and Hepatology","volume":" ","pages":""},"PeriodicalIF":11.6000,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Clinical Gastroenterology and Hepatology","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1016/j.cgh.2024.10.010","RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"GASTROENTEROLOGY & HEPATOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Background and aims: Colorectal cancer (CRC) incidence and mortality of China account for nearly 30% of the global attributable fraction. We aimed to estimate the yield and effectiveness of two-sample fecal immunochemical test (FIT)-based screening program in China.
Methods: Eligible individuals were invited for two-sample FIT between 2007 and 2021, with positive ones (cutoff: 40 μg/g before 2013, and 20 μg/g thereafter) referred for colonoscopy. Participation rates, detection rates, and positive predictive values (PPVs) were calculated. Participants were classified into: FIT+ / colonoscopy compliers, FIT+ / colonoscopy non-compliers, and FIT- as controls. We compared CRC incidence and mortality, and calculated the age reaching comparable risk.
Results: Among 246,349 invitees, 150,524 (61.10%) participated in two-sample FIT, with 16,994 (11.29%) identified as FIT+; 12,816 (75.41%) underwent colonoscopy, yielding a detection rate and PPV of 0.57% and 6.70% for advanced neoplasia. Median follow-up was 10.58 years. Compared with FIT- participants, CRC incidence and mortality were relatively similar among FIT+ / colonoscopy compliers with hazard ratio (HR) and 95% confidence interval (CI) of 0.94 (0.75-1.19) and 1.62 (1.09-2.41), but higher among non-compliers with HR and 95% CI of 3.52 (2.85-4.34) and 4.41 (2.96-6.55). Taking CRC incidence and mortality risk of FIT- participants at age 50.0 as the benchmark, FIT+ / colonoscopy compliers reached same risk at 50.6 and 46.1 years, while non-compliers at age 38.0 and 37.9 years, respectively.
Conclusions: Two-sample FIT could effectively identify high-risk populations, and colonoscopy compliance is associated with a lower risk of CRC incidence and mortality. This strategy might facilitate CRC screening practice in countries with large populations.
期刊介绍：
Clinical Gastroenterology and Hepatology (CGH) is dedicated to offering readers a comprehensive exploration of themes in clinical gastroenterology and hepatology. Encompassing diagnostic, endoscopic, interventional, and therapeutic advances, the journal covers areas such as cancer, inflammatory diseases, functional gastrointestinal disorders, nutrition, absorption, and secretion.
As a peer-reviewed publication, CGH features original articles and scholarly reviews, ensuring immediate relevance to the practice of gastroenterology and hepatology. Beyond peer-reviewed content, the journal includes invited key reviews and articles on endoscopy/practice-based technology, health-care policy, and practice management. Multimedia elements, including images, video abstracts, and podcasts, enhance the reader's experience. CGH remains actively engaged with its audience through updates and commentary shared via platforms such as Facebook and Twitter.
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