The effect of offering different numbers of colorectal cancer screening test options in a decision aid video: a pilot randomized trial

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  • Griffith, Jennifer M
    • Affiliation: Cecil G. Sheps Center for Health Services Research
    • Other Affiliation: Center for Decision Making Research
  • Lewis, Carmen L.
    • Affiliation: School of Medicine, Department of Medicine, Division of General Medicine and Clinical Epidemiology
    • Other Affiliation: Center for Decision Making Research
  • Brenner, Alison T.
    • Affiliation: Cecil G. Sheps Center for Health Services Research
    • Other Affiliation: Center for Decision Making Research
  • Pignone, Michael
    • Affiliation: School of Medicine, Department of Medicine, Division of General Medicine and Clinical Epidemiology
    • Other Affiliation: Center for Decision Making Research
Abstract
  • Abstract Background Decision aids can improve decision making processes, but the amount and type of information that they should attempt to communicate is controversial. We sought to compare, in a pilot randomized trial, two colorectal cancer (CRC) screening decision aids that differed in the number of screening options presented. Methods Adults ages 48–75 not currently up to date with screening were recruited from the community and randomized to view one of two versions of our previously tested CRC screening decision aid. The first version included five screening options: fecal occult blood test (FOBT), sigmoidoscopy, a combination of FOBT and sigmoidoscopy, colonoscopy, and barium enema. The second discussed only the two most frequently selected screening options, FOBT and colonoscopy. Main outcomes were differences in screening interest and test preferences between groups after decision aid viewing. Patient test preference was elicited first without any associated out-of-pocket costs (OPC), and then with the following costs: FOBT-$10, sigmoidoscopy-$50, barium enema-$50, and colonoscopy-$200. Results 62 adults participated: 25 viewed the 5-option decision aid, and 37 viewed the 2-option version. Mean age was 54 (range 48–72), 58% were women, 71% were White, 24% African-American; 58% had completed at least a 4-year college degree. Comparing participants that viewed the 5-option version with participants who viewed the 2-option version, there were no differences in screening interest after viewing (1.8 vs. 1.9, t-test p = 0.76). Those viewing the 2-option version were somewhat more likely to choose colonoscopy than those viewing the 5-option version when no out of pocket costs were assumed (68% vs. 46%, p = 0.11), but not when such costs were imposed (41% vs. 42%, p = 1.00). Conclusion The number of screening options available does not appear to have a large effect on interest in colorectal cancer screening. The effect of offering differing numbers of options may affect test choice when out-of-pocket costs are not considered.
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DOI
Identifier
  • doi:10.1186/1472-6947-8-4
  • 18218084
Resource type
  • Article
Rights statement
  • In Copyright
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  • Jennifer M Griffith et al.; licensee BioMed Central Ltd.
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Journal title
  • BMC Medical Informatics and Decision Making
Journal volume
  • 8
Journal issue
  • 1
Page start
  • 4
Language
  • English
Is the article or chapter peer-reviewed?
  • Yes
ISSN
  • 1472-6947
Bibliographic citation
  • BMC Medical Informatics and Decision Making. 2008 Jan 24;8(1):4
Publisher
  • BioMed Central Ltd
Access right
  • Open Access
Date uploaded
  • August 24, 2012

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file details 1472-6947-8-4.pdf 2019-05-07 Public Download
file details CHOICE2 decision aid study surveys. The pre and post decision aid surveys used in CHOICE2 study. 2019-05-07 Public Download
file details 1472-6947-8-4.xml 2019-05-07 Public Download