Development of a simple prediction model to distinguish non-infectious inflammatory diseases from undiagnosed fever: single-center retrospective observational study

Development of a prediction rule of infectious disease in febrile patients with unknown fever source: A single-hospital-based retrospective study - Development of a prediction rule of infectious disease in febrile patients with unknown fever source: A single-hospital-based retrospective study

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000058279

Enrollment

192

Registered

2025-06-25

Start date

2024-02-03

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

fever of unknown origin

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients admitted to any department of Saga University Hospital between 1 January 2013 and 31 December 2022 with a diagnosis labeled "fever, unspecified" (ICD-10 code R-50.9) during hospitalization were included.

Exclusion criteria

Exclusion criteria: We excluded patients who were under 18 years old, who were not measured ferritin at admission, who had not 37 degrees C or higher fever within 24 hours before or after admission, who had definitive diagnosis before admission, or who were not implemented chest X-ray, blood test, or urine test before admission, and those with an undetermined final diagnosis.

Design outcomes

Primary

Measure	Time frame
NIID	—

Countries

Japan

Contacts

Public ContactShun Yamashita

Saga University Hospital Department of General Medicine

sy.hospitalist.japan@gmail.com0952343238

Outcome results