Publication date: Jun 09, 2025
To contrast long-term sequelae post-COVID-19 hospitalisations attributed to Omicron, versus seasonal influenza; stratified by vaccination. Retrospective population-based cohort study in Singapore, including all adult COVID-19 hospitalisations post-Omicron emergence (1 January 2022-3 September 2023), and historical influenza hospitalisations (1 January 2017-3 September 2023). Risks of post-acute diagnoses/symptoms 31-300 days post-COVID-19 hospitalisation, versus influenza, were estimated using overlap-weighted competing-risks-regression, with death as a competing risk. 70,628 COVID-19 hospitalisations and 10,454 influenza hospitalisations were included. Lower overall risk of post-acute cardiac symptoms (adjusted-hazards-ratio, aHR=0. 77[95%CI=0. 64-0. 92]; p
| Concepts | Keywords |
|---|---|
| Competing | COVID-19 |
| Hospitalisations | influenza |
| Influenza | post-acute |
| Singapore | SARS-CoV-2 |
Semantics
| Type | Source | Name |
|---|---|---|
| disease | MESH | sequelae |
| disease | MESH | COVID-19 |
| disease | MESH | influenza |
| disease | MESH | death |
| disease | MESH | Long Covid |