期刊
DIGESTIVE AND LIVER DISEASE
卷 48, 期 5, 页码 542-551出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.dld.2016.02.001
关键词
Colorectal cancer screening; Cut-off values
Background: There is no information on the impact of age and gender on the diagnostic yield of different positivity thresholds for the fecal immunochemical test for hemoglobin (FIT). Objectives: To evaluate the performance of this test at distinct positivity cut-offs in a population -based colorectal cancer (CRC) screening program. Methods: CRC detection rate (DR), and analysis of resources were evaluated retrospectively, at different cut-offs of FIT (20, 25, 30, 35 and 40 tig Hb/g) respect to a reference value (15 tig Hb/g), according to age and gender, in a screening population of 10,611 participants of the ColonPrev study (Quintero. NEJM 2013). Results: At the reference cut-off value, 36 CRC and 252 advanced adenomas (AA) were diagnosed. Increasing the cut-off in women <60 years decreases colonoscopies performed by 44.5% without modifying the CRC (DR). Same CRC DR was observed in men <60 years and women >60 years increasing cut-off at 25-30 tig Hb/g. In men >60 years, all increases in the cut-off affected the CRC DR, especially when the cut-off was increased from 35 to 40 tig Hb/g (CRC miss rate 25%). Conclusions: To improve the performance of FIT in CRC screening programs, FIT cut-offs could be individualized by age and gender. (C) 2016 Editrice Gastroenterologica Italiana S.r.l. Published by Elsevier Ltd. All rights reserved.
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