Consumer Motivation for Disease Prevention 2 (Clear Labels)

Risk Reduction Clinical Trial

Official title:

Consumer Motivation for Disease Prevention 2 (Clear Labels)

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT04228562
• Other study ID #: 14507018(2)
• Status: Completed
• Phase: N/A
• Start date: January 15, 2020
• Est. completion date: April 15, 2020

Study information

• Verified date: August 2020
• Source: Chinese University of Hong Kong
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The purpose of this study is to examine (1) how the causal structure of a disease influences people's disease prevention decisions; and (2) how the causal structure of a disease interacts with people's regret anticipation in determining their disease prevention decisions.

Description:

People sometimes have to deliberate on whether or not to remove a risk factor that may potentially cause a disease in the future. When a modifiable risk factor (say, X) is the only factor that causes a disease, the decision to remove it may simply depend on the probabilistic relationship between X and an outcome, as well as the cost of removing X. However, little is known when other factors that are out of the decision-maker's control are also present. The main question being asked here is how does the presence of such non-modifiable factors change people's decision to remove X.

Specifically, the investigators consider two cases: a disease caused by a single modifiable risk factor (say X) and a disease caused by two risk factors -- a modifiable factor (X) and a non-modifiable factor (Y). In both cases, the removal of X can result in a meaningful reduction in overall disease risk. It is hypothesized that even when the magnitude of overall risk reduction brought by the removal of X is the same in the two cases, people would have a lower motivation to remove X in the latter case.

The investigators also examine how the presence of a non-modifiable risk factor interacts with the respondents' regret anticipation to influence their decision to remove X. In the context of the current research, regret anticipation could take one of the following forms: (a) feel regretful if one decides not to remove X and later develops the disease (b) feel regretful if one decides to remove X but still develops the disease. The investigators expect (a) to moderate the effect of non-modifiable risk factor on motivation to remove X.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 256
• Est. completion date: April 15, 2020
• Est. primary completion date: April 15, 2020
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• students currently studying at the Chinese University of Hong Kong

Exclusion Criteria:

• None

Related Conditions & MeSH terms

• Risk Reduction

Intervention

Other:
• non-modifiable factor
the presence of an uncontrollable / unremovable risk factor for a disease
• induction of anticipated regret
higher level of elaboration on potential regret

Locations

Country	Name	City	State
Hong Kong	Chinese University of Hong Kong	Hong Kong

Sponsors (2)

Lead Sponsor	Collaborator
Chinese University of Hong Kong	University of Toronto

Country where clinical trial is conducted

Hong Kong, 

References & Publications (1)

Binder S, Nuscheler R. Risk-taking in vaccination, surgery, and gambling environments: Evidence from a framed laboratory experiment. Health Econ. 2017 Dec;26 Suppl 3:76-96. doi: 10.1002/hec.3620. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Other	Anticipated regret	The exact question is: Some people may engage in the following thoughts when they make their decisions: "I may regret if I do not remove X and end up getting the disease" OR "I may regret if I remove X but still get the disease." To what extent have you engaged in any of these thoughts? (Measurement scale: 1 = not at all; 7 = a lot)	Day 1: When responding to the questionnaire
Other	Judgment of whether the removal of X is an opportunity to improve earnings	The exact question is: Do you think the decision to remove X is an opportunity for you to improve your final earnings? (Measurement scale: 1 = not a good opportunity at all; 7 = a very good opportunity")	Day 1: When responding to the questionnaire
Other	Sense of control over the final outcome	The exact question is: Do you think you have control over the outcome through your decision of whether or not to remove X? (Measurement scale: 1 = I have very little control… 7 = I have a lot of control)	Day 1: When responding to the questionnaire
Primary	Decision to remove X	The decision to remove X (yes vs. no)	Day 1: When responding to the questionnaire