The incidence, risk factors, and consequences of Long/Post-COVID in people with diabetes compared to people without diabetes in Germany

The incidence, risk factors, and consequences of Long/Post-COVID in people with diabetes compared to people without diabetes in Germany - LongCovid-Diab

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00036279

Enrollment

73320000

Registered

2025-05-15

Start date

2025-05-01

Completion date

Unknown

Last updated

2026-06-01

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

Conditions

The following ICD diagnoses for long/post-COVID are taken into account: U08.9, U09.9!, U10.9, G93.3 (only relevant for people with a previously diagnosed COVID-19). The analyses with an outpatient or inpatient COVID-19 diagnosis (ICD: U07.1) between 2020 and 2024 as a risk population are repeated. U09.9 U10.9 G93.3 U07.1

Interventions

Group 1: Objective 1: All SHI-insured persons between 2021 and 2024 (2021: 73.32 million

2023: 74.31 million) who are stratified by diabetes status. Methods: Incidence rates of long/post-COVID and their temporal course are estimated in a population-based sample in Germany using inpatient

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: The study population for objective 1 is all SHI-insured persons between 2021 and 2024 (2021: 73.32 million; 2023: 74.31 million) who are stratified according to diabetes status (approx. 10% of all insured persons with diabetes). The study population for objective 2 consists of all SHI-insured persons who will also be stratified by diabetes status between 2021 and 2023 according to the presence of a “long/post-COVID” diagnosis. The database is also to be expanded to include insured persons without a “long/post-COVID” diagnosis in order to estimate excess mortality and excess hospitalizations due to this diagnosis.

Exclusion criteria

Exclusion criteria: none, total survey Germany-wide

Design outcomes

Primary

Measure	Time frame
Incidence, time trends of long/post-COVID in people with diabetes compared to people without diabetes and analysis of potential risk factors for long/post-COVID	—

Secondary

Measure	Time frame
Mortality, total hospitalizations and hospitalizations for acute myocardial infarction, stroke, amputation and DFS within 12, 24 and 36 months of long/post COVID diagnosis in people with diabetes compared to people without diabetes and the identification of potential risk factors for these conditions	—

Countries

Germany

Contacts

Public ContactMaria Narres

Deutsches Diabetes-Zentrum (DDZ), Deutsche Diabetes-Forschungsgesellschaft e.V. Institut für Versorgungsforschung und Gesundheitsökonomie

maria.narres@ddz.de+49 211 3382 403

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Jun 11, 2026