Who should be included in a clinical trial of screening for bladder cancer?: A decision analysis of data from the Prostate, Lung, Colorectal and Ovarian Cancer Screening Trial Journal Article


Authors: Vickers, A. J.; Bennette, C.; Kibel, A. S.; Black, A.; Izmirlian, G.; Stephenson, A. J.; Bochner, B.
Article Title: Who should be included in a clinical trial of screening for bladder cancer?: A decision analysis of data from the Prostate, Lung, Colorectal and Ovarian Cancer Screening Trial
Abstract: Background: Because of its relatively low incidence, bladder cancer screening might have a better ratio of benefits to harms if it is restricted to a high-risk population. Data from the Prostate, Lung, Colorectal and Ovarian (PLCO) Cancer Screening Trial were used and simple decision analytic techniques were applied to compare different eligibility criteria for a screening trial. Methods: For a variety of possible eligibility criteria, the percentage of the population aged 55 years to 74 years and classified as being at high risk for developing invasive or high-grade carcinoma, and therefore likely to benefit from screening, was calculated. Regression models were used to calculate a risk score based on age, sex, smoking history, and family history of bladder cancer. The reduction in cases was calculated given hypothetical risk reductions associated with screening. The trade-off between patients screened and tumors avoided was calculated as a net benefit. Results: The 5-year probability of being diagnosed with invasive bladder cancer was 0.24%. Using a risk score > 6 or > 8 as the eligibility criterion for a trial was generally superior to including all older adults. In a typical scenario, a risk score > 6 would result in approximately 25% of the population being screened to prevent 57 invasive or high-grade bladder cancers per 100,000 population; screening the entire population would prevent only an additional 38 cases. Conclusions: Screening for bladder cancer can be optimized by restricting it to a subgroup of patients considered to be at elevated risk. Different eligibility criteria for a screening trial can be compared rationally using decision-analytic techniques. © 2012 American Cancer Society.
Keywords: research design; bladder cancer; screening; tobacco; clinical trials
Journal Title: Cancer
Volume: 119
Issue: 1
ISSN: 0008-543X
Publisher: Wiley Blackwell  
Date Published: 2013-01-01
Start Page: 143
End Page: 149
Language: English
DOI: 10.1002/cncr.27692
PROVIDER: scopus
PUBMED: 22736219
PMCID: PMC4036636
DOI/URL:
Notes: --- - "Export Date: 1 March 2013" - "CODEN: CANCA" - "Source: Scopus"
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  1. Andrew J Vickers
    880 Vickers
  2. Bernard Bochner
    468 Bochner