Back to Search
Start Over
False-Positive Results in a Population-Based Colorectal Screening Program: Cumulative Risk from 2000 to 2017 with Biennial Screening
- Source :
- Cancer Epidemiology, Biomarkers & Prevention. 28:1909-1916
- Publication Year :
- 2019
- Publisher :
- American Association for Cancer Research (AACR), 2019.
-
Abstract
- Background: The aim of this study was to estimate the cumulative risk of a false-positive (FP) result in a fecal occult blood test (FOBT) through 7 screening rounds and to identify its associated factors in a population-based colorectal cancer screening program. Methods: Retrospective cohort study, which included participants ages 50 to 69 years of a colorectal cancer screening program in Catalonia, Spain. During this period, 2 FOBTs were used (guaiac and immunochemical). A discrete-time survival model was performed to identify risk factors of receiving a positive FOBT with no high-risk adenoma or colorectal cancer in the follow-up colonoscopy. We estimated the probability of having at least 1 FP over 7 screening rounds. Results: During the period of 2000 to 2017, the cumulative FP risk was 16.3% (IC95%: 14.6%–18.3%), adjusted by age, sex, and type of test. The median number of screens was 2. Participants who began screening at age 50 years had a 7.3% [95% confidence interval (CI), 6.35–8.51] and a 12.4% (95% CI, 11.00–13.94) probability of an FP with 4 screening rounds of guaiac-based test and immunochemical test, respectively. Age, the fecal immunochemical test, first screening, and number of personal screens were factors associated with an FP result among screenees. Conclusions: The cumulative risk of an FP in colorectal screening using FOBT seems acceptable as the colonoscopy, with its high accuracy, lengthens the time until additional colorectal screening is required, while complication rates remain low. Impact: It is useful to determine the cumulative FP risk in cancer screening for both advising individuals and for health resources planning.
- Subjects :
- Male
0301 basic medicine
medicine.medical_specialty
Epidemiology
Colorectal cancer
Population
Colonoscopy
History, 21st Century
Cohort Studies
03 medical and health sciences
0302 clinical medicine
Internal medicine
Cancer screening
medicine
Humans
False Positive Reactions
education
Early Detection of Cancer
Aged
Retrospective Studies
education.field_of_study
medicine.diagnostic_test
business.industry
Fecal occult blood
Retrospective cohort study
Middle Aged
medicine.disease
Confidence interval
030104 developmental biology
Oncology
030220 oncology & carcinogenesis
Female
Colorectal Neoplasms
business
Cohort study
Subjects
Details
- ISSN :
- 15387755 and 10559965
- Volume :
- 28
- Database :
- OpenAIRE
- Journal :
- Cancer Epidemiology, Biomarkers & Prevention
- Accession number :
- edsair.doi.dedup.....ca05f2b1c440ffc4a1458dd772a9a216