Online Field Test of an Appendicitis Decision Support Tool

Not Applicable

Completed

• Conditions: Appendicitis Acute
• Interventions: Behavioral: Appendicitis Decision Support Tool; Behavioral: Control Infographic

• Registration Number: NCT05219786
• Lead Sponsor: University of Washington

Brief Summary

After the recent publication of the CODA Trial comparing antibiotics and surgery for acute appendicitis, the investigators developed a comprehensive decision support tool. This tool will help patients understand the risks and benefits of each treatment and make a treatment decision. This study is an online randomized field test comparing the decision support tool to a control infographic and assessing it's affect on decisional outcomes, such as decisional conflict.

Detailed Description

Not available

Study Timeline

• Study Start: 2021-10-06
• Primary Completion: 2021-10-06
• Study Completion: 2021-10-06
• Study First Submitted: 2021-11-08
• Status Verified: 2022-01
• Study First Submitted QC: 2022-01-20
• Last Update Submitted: 2022-01-20
• Study First Posted: 2022-02-02
• Last Update Posted: 2022-02-02

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 194

Inclusion Criteria

who live in the United States and who have not previously had appendicitis.

• Workers on Amazons Mechanical Turk Platform with an approval rating of 95% or higher
• Workers on Amazons Mechanical Turk Platform who live in the United States
• Workers on Amazons Mechanical Turn Platform who have not previously had appendicitis

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Exclusion Criteria

• Employees or relatives of employees of the University of Washington

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Decision Support Tool	Appendicitis Decision Support Tool	In this arm study participants saw a decision support tool consisting of a video and a interactive decision aid (www.appyornot.org).
Infographic	Control Infographic	Participant saw a static infographic providing information about the two treatments for appendicitis.

Primary Outcome Measures

Name	Time	Method
Decisional Conflict Pre vs. Post Intervention	At time of enrollment	Assessed using the validated decisional conflict scale comparing only participants in the intervention arm before and after viewing the decision support tool.

Secondary Outcome Measures

Name	Time	Method
Trust and Accuracy of Information	At time of enrollment	Participants perception of the trustworthiness and accuracy of the information presented to them on a 5 point scale with higher scores representing a higher perceived trustworthiness and perceived accuracy.
Acceptability	At time of enrollment	Between arm comparison of the acceptability of the information presented to the participants rated on a 4 point acceptability scale with higher scores representing higher acceptability.
Decisional Conflict Between Arms	At time of enrollment	Total score on the validated decisional conflict scale after viewing the intervention support tool or the control infographic. Scale ranges from 0-100 with higher scores being worse.

Trial Locations

Locations (1)

University of Washington; 🇺🇸 Seattle, Washington, United States