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Validity of fecal occult blood test in the National Cancer Screening Program, Korea.

Title
 Validity of fecal occult blood test in the National Cancer Screening Program, Korea.
Authors
 Aesun Shin; Kui Son Choi; Eun-Cheol Park; Jae Hwan Oh; Byung Chang Kim; Kyu-Won Jung; Mina Suh; Dai Keun Noh; Jae Kwan Jun
Issue Date
2013
Journal Title
 PLoS One
ISSN
 1932-6203
Citation
 PLoS One, Vol.8(11) : e79292, 2013
Abstract
AIM: The aims of the current study were to assess the validity of the fecal occult blood test (FOBT) in an organized screening setting in Korea and to determine factors associated with FOBT validity, such as screening round, age group, and anatomical location of the cancer. METHODS: Study participants were those who were 50 years and older who received an FOBT through the National Cancer Screening Program between 2004 and 2007. Colorectal cancer diagnoses were ascertained through linkage with the Korean National Cancer Incidence Database. The positivity rate, colorectal cancer detection rate, interval cancer rate, sensitivity, specificity, and positive predictive value of the FOBT were calculated. RESULTS: A total of 2,193,093 tests were included in the analysis. Overall, the sensitivity of the FOBT for colorectal cancer was 59.7% for the first round and 56.1% for the subsequent round. Sensitivity was highest for distal colon cancer (65.9%) in the first round, and for rectal cancer (58.4%) for the subsequent round. The sensitivity and positive predictive value of the FOBT generally improved between 2004 and 2008. CONCLUSIONS: The FOBT showed reasonable validity in an organized screening setting, and the validity of the FOBT varied by screening round, anatomical location, and screening year.
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/88500
DOI
10.1371/journal.pone.0079292
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Dept. of Preventive Medicine
Yonsei Authors
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