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Is intention to screen for bowel cancer increased after considering the regret anticipated for not screening?

Considering anticipated regret may reduce colorectal cancer screening intentions: A randomised controlled trial in Australians over 45

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12618001098224
Enrollment
803
Registered
2018-07-02
Start date
2017-06-03
Completion date
2017-07-12
Last updated
2018-07-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

Bowel cancer is the second most common form of cancer in Australia, and screening can substantially reduce both mortality and health care costs. However, participation in the Australian National Bowel Cancer Screening Program (NBCSP) is quite low, with only around 39% of invitees taking up screening. This research investigated how screening rates might be increased by asking participants to think about the regret they would anticipate in the future if they chose not to screen. Earlier studies have shown that just thinking about this anticipated regret can increase the likelihood of participation in a range of protective behaviours like screening.

Interventions

Participants completed an online questionnaire regarding their attitude to colorectal cancer screening. Measures included the intention to screen for colorectal cancer, the anticipated regret should participants choose not to screen, and the level of faecal aversion. Completion of the survey took 10-15 minutes and was undertaken in a single session. The study had 4 arms, where the order of measurement items in each arm was varied (anticipated regret and faecal aversion were measured either be

Participants completed an online questionnaire regarding their attitude to colorectal cancer screening. Measures included the intention to screen for colorectal cancer, the anticipated regret should participants choose not to screen, and the level of faecal aversion. Completion of the survey took 10-15 minutes and was undertaken in a single session. The study had 4 arms, where the order of measurement items in each arm was varied (anticipated regret and faecal aversion were measured either before or after intention to screen). Arm 1: Intention to screen, anticipated regret, faecal aversion Arm 2: Faecal aversion, intention to screen, anticipated regret Arm 3: Anticipated regret, intention to screen, faecal aversion Arm 4: Anticipated regret, faecal aversion, intention to screen All participants were provided with a brief textual on-screen explanation of the Australian National Bowel Cancer Screening Program and what was involved in screening, based on the Program promotional material, prior to responding.

Sponsors

The University of Adelaide, School of Psychology
Lead SponsorUniversity

Study design

Allocation
Randomised controlled trial
Intervention model
Factorial
Primary purpose
Prevention
Masking
Blinded (masking used) (Subject, Caregiver)

Eligibility

Sex/Gender
All
Age
45 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

- Must be fluent in English - Must be Australian citizens or residents

Exclusion criteria

- Must not have a previous diagnosis of colorectal cancer

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 20, 2026