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KMID : 1188320160100060925
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Gut and Liver
2016 Volume.10 No. 6 p.925 ~ p.931
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Performance of the Fecal Immunochemical Test for Colorectal Cancer Screening Using Different Stool-Collection Devices: Preliminary Results from a Randomized Controlled Trial
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Shin Hye-Young
Suh Mi-Na
Baik Hyung-Won
Choi Kui-Son
Park Bo-Young
Jun Jae-Kwan
Hwang Sang-Hyun
Kim Byung-Chang
Lee Chan-Wha
Oh Jae-Hwan
Lee You-Kyoung
Han Dong-Soo
Lee Do-Hoon
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Abstract
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Background/Aims: We are in the process of conducting a randomized trial to determine whether compliance with the fecal immunochemical test (FIT) for colorectal cancer screening differs according to the stool-collection method. This study was an interim analysis of the performance of two stool-collection devices (sampling bottle vs conventional container).
Methods: In total, 1,701 individuals (age range, 50 to 74 years) were randomized into the sampling bottle group (intervention arm) or the conventional container group (control arm). In both groups, we evaluated the FIT positivity rate, the positive predictive value for advanced neoplasia, and the detection rate for advanced neoplasia.
Results: The FIT positivity rates were 4.1% for the sampling bottles and 2.0% for the conventional containers; these values were significantly different. The positive predictive values for advanced neoplasia in the sampling bottles and conventional containers were 11.1% (95% confidence interval [CI], ?3.4 to 25.6) and 12.0% (95% CI, ?0.7 to 24.7), respectively. The detection rates for advanced neoplasia in the sampling bottles and conventional containers were 4.5 per 1,000 persons (95% CI, 2.0 to 11.0) and 2.4 per 1,000 persons (95% CI, 0.0 to 5.0), respectively.
Conclusions: The impact of these findings on FIT screening performance was unclear in this interim analysis. This impact should therefore be evaluated in the final analysis following the final enrollment period.
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KEYWORD
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Colorectal neoplasms, Early detection of cancer, Screening, Intervention study, Predictive value of tests
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