Flu Hospitalization Tied to Diabetes Risk

Overview

A retrospective cohort study found that adults hospitalized with influenza had higher rates of newly diagnosed diabetes mellitus post-discharge compared to matched community controls and patients hospitalized with sepsis. The increased risk was most pronounced within 90 days following discharge.

Background

Understanding the relationship between influenza hospitalization and subsequent diabetes risk is crucial for healthcare providers. This study highlights the potential long-term metabolic consequences of acute respiratory infections, particularly in vulnerable populations.

Data Highlights

Key Findings

• Influenza hospitalization was associated with a 54% higher adjusted rate of diabetes diagnosis compared to matched controls.
• The incidence of diabetes was 12.5 cases per 1,000 person-years in the influenza cohort.
• Patients hospitalized with influenza had a 2.7-fold higher adjusted rate of diabetes diagnosis within 90 days post-discharge.
• Incident prediabetes occurred at a rate of 16.6 cases per 1,000 person-years in the influenza cohort.
• 35% of influenza-hospitalized patients underwent glucose testing in the first year post-discharge.
• 69% of patients diagnosed with diabetes during follow-up required oral diabetes medications or insulin therapy.

Clinical Implications

Healthcare providers should consider increased diabetes screening for patients hospitalized with influenza, especially within the first 90 days post-discharge. Recognizing risk factors such as male sex, older age, and higher BMI may help in identifying patients who require closer monitoring.

Conclusion

The findings indicate an association between influenza hospitalization and the subsequent risk of diabetes.

Related Resources & Content

1. BMJ Open, 2023 -- Incidence of diabetes mellitus following hospitalisation with influenza: a population-based cohort study in England
2. American Diabetes Association, 2025 -- Diagnosis and Classification of Diabetes: Standards of Care in Diabetes—2026
3. The Journal of Clinical Endocrinology & Metabolism — Immunization Profile Among Nearly 620,000 Individuals with Diabetes
4. conexiant — Antivirals Linked to Lower Hospitalization in Influenza
5. The ASCO Post — Can Diabetes Affect the Efficacy of Immune Checkpoint Inhibitors in Patients With Advanced Cancer?
6. The Journal of Clinical Endocrinology & Metabolism — The Interplay Between Mental Health and Diabetes Care Management
7. Incidence of diabetes mellitus following hospitalisation with influenza
8. 2. Diagnosis and Classification of Diabetes: Standards of Care in Diabetes—2026 | Diabetes Care | American Diabetes Association
9. Incidence of diabetes after SARS-CoV-2 infection in England and the implications of COVID-19 vaccination: a retrospective cohort study of 16 million people - PubMed