The efficacy of displaying the working diagnosis at the last of the case presentation to reduce diagnostic error: an open-label randomized controlled study

The efficacy of displaying the working diagnosis at the last of the case presentation to reduce diagnostic error: an open-label randomized controlled study - The efficacy of displaying the working diagnosis at the last of the case presentation to reduce diagnostic error: an open-label randomized controlled study

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000050484

Enrollment

Registered

2023-03-03

Start date

2022-11-15

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

Diseases in general internal medicine

Interventions

Participants are required to declare whether agree or disagree on the oral case presentation of 8 fictional clinical scenarios. If they do not agree, they are asked to name their own diagnosis. The wo

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Junior residents (postgraduate year 1 or 2) working in Japan.

Exclusion criteria

Exclusion criteria: no consent for participating in this study

Design outcomes

Primary

Measure	Time frame
The prevalence of making misdiagnosis.	—

Secondary

Measure	Time frame
The association between the diagnostic error and age, sex, post graduated year, the degree of trust in diagnostic sense, and the length of training of emergency medicine.	—

Countries

Japan

Contacts

Public ContactMASAYUKI AMANO

Dokkyo Medical University Department of Diagnostic and Generalist Medicine

work.photo.1111@gmail.com0282-86-1111

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026