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A Retrospective Study on the Clinical Characteristics and Related Laboratory Indicators in Elderly Patients with Influenza

A Retrospective Study on the Clinical Characteristics and Related Laboratory Indicators in Elderly Patients with Influenza

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2600124371
Enrollment
Unknown
Registered
2026-05-11
Start date
2026-05-15
Completion date
Unknown
Last updated
2026-05-18

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

Conditions

influenza

Interventions

Elderly influenza patient group:None

Sponsors

Beijing Haidian Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
65 Years to No maximum

Inclusion criteria

Inclusion criteria: 1.Elderly influenza patients aged 65 years or older, confirmed positive for influenza virus nucleic acid through oral or nasopharyngeal swabs, and with complete medical records.

Exclusion criteria

Exclusion criteria: 1.There are underlying diseases that seriously affect immune function (such as SLA, RA, malignant tumors, solid organ or hematopoietic stem cell transplantation history), recent use of immunomodulatory drugs (such as prednisone, methotrexate, cyclosporine, etc.), comorbidities that seriously interfere with prognosis judgment (such as acute myocardial infarction, acute stroke, end-of-life status upon admission), loss to follow-up, or severe data loss.

Design outcomes

Primary

MeasureTime frame
7-day clinical recovery rate;

Secondary

MeasureTime frame
Incidence of complications and severe outcomes;

Countries

China

Contacts

Public ContactLu Lang

Beijing Haidian Hospital

Lu202004@163.com+86 10 82693567

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: May 22, 2026