Characteristics and outcomes of ICU patients with bacterial catheter-associated urinary tract infection.

Authors

Mateusz Bartoszewicz, Marta Krysik, Sławomir Lech Czaban, Jerzy Robert Ładny

Published in

PloS one. Volume 21. Issue 9. Pages e0358796. Epub Sep 25, 2026.

Abstract

Catheter-associated urinary tract infection (CAUTI) is a common device-associated complication in intensive care units (ICUs).
To characterize bacterial CAUTI in an ICU cohort and identify independent associations with demographic and clinical characteristics available at or before ICU admission.
This single-center retrospective cohort included 3326 index ICU admissions from January 2017 through June 2023. After exclusion of 95 fungal-only clinically classified cases, 3231 records remained. Bacterial CAUTI required compatible clinical findings, at least 48 hours of catheter exposure, and ≥10³ CFU/mL of one or two bacterial species. All patients were catheterized throughout the observed ICU stay. The primary logistic model included only admission characteristics; ICU stay/catheter duration was descriptive because exact CAUTI onset dates were unavailable. Skewed biomarkers were summarized with medians, interquartile ranges, and Mann-Whitney tests.
Bacterial CAUTI occurred in 301 patients (9.3%; 95% CI 8.4%-10.4%). Mean ICU stay/catheter duration was 28.3 versus 13.6 days (difference 14.8 days; 95% CI 11.7-17.8), but duration was not interpreted as an independent risk estimate. Mortality was 49.2% versus 45.9% (risk difference 3.2 percentage points; 95% CI -2.7 to 9.1), and bacterial CAUTI was not associated with death after adjustment for admission characteristics (OR 0.95; 95% CI 0.75-1.22). Female sex (OR 1.48; 95% CI 1.15-1.90), obesity (OR 1.62; 95% CI 1.20-2.19), and COVID-19 (OR 2.16; 95% CI 1.55-3.00) were independently associated. At least one resistance phenotype was recorded in 200 patients (66.4%).
Bacterial CAUTI was associated with a distinct admission profile and longer observed ICU stay/catheter exposure, although causal direction could not be determined. It was not associated with adjusted in-hospital mortality.

PMID:
42789543
Bibliographic data and abstract were imported from PubMed on 26 Sep 2026.

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