Online Study of Colorectal Cancer and Prostate Cancer Screening Decision Making

Not Applicable

Completed

• Conditions: Prostate Cancer; Colorectal Cancer; Colon Cancer
• Interventions: Other: Balance Sheet Task; Other: Discrete Choice Task; Other: Rating and Ranking Task

• Registration Number: NCT01558583
• Lead Sponsor: University of North Carolina, Chapel Hill

Brief Summary

Participants will be recruited from the United States and Australia to take an online survey about colon cancer screening or prostate cancer screening. Individuals selected for both the prostate cancer survey and the colon cancer study will be randomized to take one of three survey types - balance sheet, rating and ranking or conjoint analysis. These surveys will help participants clarify their values and opinions about screening options for colon cancer or prostate cancer. Participants' responses to the online survey are measured at one point in time - the time at which the participant takes the survey.

Detailed Description

This study will compare effect of a conjoint analysis based values clarification exercise, ranking and rating, and a balance sheet on screening test preferences for colorectal cancer screening and prostate cancer screening using online surveys. Recruitment will be conducted through Survey Sampling International (SSI), an online survey research firm. Participants will be randomized to one of three arms to take online surveys. Patients will complete either a conjoint analysis task, in which they will be asked to make a series of choices between hypothetical screening testing strategies with different attributes; a rating and ranking task for these same attributes; or they will make a choice after viewing a balance sheet of attributes.

Study Timeline

• Study Start: 2011-07
• Primary Completion: 2011-10
• Study Completion: 2011-10
• Study First Submitted: 2012-02-07
• Study First Submitted QC: 2012-03-19
• Study First Posted: 2012-03-20
• Status Verified: 2012-07
• Last Update Submitted: 2017-04-21
• Last Update Posted: 2017-04-25

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 1831

Inclusion Criteria

• Colorectal cancer

  • men and women, ages 50-75, who can speak and read English.

• Prostate cancer screening

  • men, ages 50-75, who can speak and read English.

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Exclusion Criteria

• Colorectal Cancer

  • individuals with a previous personal or family history of colon cancer, personal history of polyps, or inflammatory bowel disease will be excluded.

• Prostate cancer

  • individuals with a previous personal or family history of prostate cancer will be excluded

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Balance Sheet Group	Balance Sheet Task	Individuals from the United States and Australia who will complete an implicit values clarification task
Discrete Choice Group	Discrete Choice Task	A group of individuals from the United States and Australia who complete a discrete choice experiment task.
Rating and Ranking Group	Rating and Ranking Task	A group of individuals from the United States and Australia who complete a rating and ranking task.

Primary Outcome Measures

Name	Time	Method
Participant-reported most important attribute from survey	1 day	The single most important colon cancer or prostate cancer screening attribute indicated by the participant surveys. Each participant will be randomly assigned to take one of three survey versions: either (1) a conjoint analysis task wherein they will be asked to make a series of choices between hypothetical screening testing strategies with different attributes; (2) a rating and ranking task for these same attributes; or (3) they will make a choice after viewing a balance sheet of attributes.

Secondary Outcome Measures

Name	Time	Method
Unlabeled screening test options	1 day	choice on a single question among unlabeled screening test options
Participant-reported intent to undergo screening from survey	1 day	the number of participants who state they plan to be screened for condition

Trial Locations

Locations (1)

Cecil G. Sheps Center for Health Services Research; 🇺🇸 Chapel Hill, North Carolina, United States