Publication date: May 26, 2026
To determine the incidence, predictors, and impact of pneumonia among hospitalised patients with ANCA-associated vasculitis (AAV). A nationwide retrospective analysis of Spanish hospital discharges (2016-2023) identified all AAV admissions and coexisting pneumonia using ICD-10 codes. Outcomes included pneumonia incidence, intensive care unit (ICU) utilisation, length of stay, temporal trends, in-hospital mortality, and case fatality rate (CFR). Illness severity was classified using the severity of illness (SOI) and risk of mortality (ROM) indices. Multivariable logistic regression was used to identify independent predictors of in-hospital mortality. Among 12 378 AAV hospitalisations, 1,280 (10. 3%) had pneumonia. Pneumonia was associated with higher ICU admission rates (13. 5% vs 6. 5%), longer stays (median 22 vs 17 days), and greater in-hospital mortality (14. 9% vs 4. 4%) than those without pneumonia (all p
Semantics
| Type | Source | Name |
|---|---|---|
| disease | MESH | Pneumonia |
| disease | MESH | ANCA-associated vasculitis |
| disease | MESH | ICD |
| disease | MESH | included |