Identifying the risk of COVID-19 between different underlying comorbidities through the collaborative effort of Core Hospitals for Clinical Research in Japan

Identifying the risk of COVID-19 between different underlying comorbidities through the collaborative effort of Core Hospitals for Clinical Research in Japan - Identifying the risk of COVID-19 between different underlying comorbidities through the collaborative effort of Core Hospitals for Clinical Research in Japan

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000043403

Enrollment

7000000

Registered

2021-02-28

Start date

2021-03-01

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

All patients who visited the participating hospitals between March 1st, 2020 and December 3st, 2020, and who meets the inclusion criteria, and not meet the exclusion criteria are included in the current study

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients who visited the participating institute more than twice between March 1st, 2020 and December 31st, 2020. For the patients who were positive for COVID-19, they would be enrolled in the study even with a one time visit.

Exclusion criteria

Exclusion criteria: 1) Patients who declared to opt out of the study 2) patients whose data cannot be used for this study according to the participating institutes' previously defined policy (for example the patient is currently enrolled in a different clinical trial)

Design outcomes

Primary

Measure	Time frame
Onset of COVID-19	—

Countries

Japan

Contacts

Public ContactRyo Takemura

Keio University Hospital Clinical and Translational Research Center

rtakemura@keio.jp03-3353-1211

Outcome results