OBJECTIVE

We introduced a urinary tract infection (UTI) panel requiring symptom documentation and identification of special populations linked to reflex urine culturing and evaluated its impact on catheter-associated UTI (CAUTI) including during the COVID-19 pandemic.

DESIGN

Quasi-experimental encompassing 3 periods: pre-panel (January 2014-March 2015), post-panel (April 2015-March 2020), and post-panel COVID (April 2020-June 2022).

SETTING/PARTICIPANTS: Tertiary care center inpatients.

METHODS

Poisson regression and interrupted time series (ITS) analysis evaluated changes in catheter days (CD), urine cultures (UC), and CAUTI measured by 1,000 CD and patient days (PD). National Health Safety Network standardized infection ratio (SIR) and standardized utilization ratio (SUR) data were analyzed.

RESULTS

UC per 1,000 PD decreased after implementation (pre-panel 36.9 vs 16.6 post-panel vs 14.4 post-panel COVID, all < .001). CD declined pre-panel versus post-panel (RR 0.37, < .001) but not from post-panel to post-panel COVID (RR 0.94, = .88). UTI panel implementation was associated with a 40% decrease in CAUTI rates per 1,000 CD ( < .001). During the COVID-19 pandemic (post-panel COVID), a nonsignificant increase of 13% ( = .61) in CAUTI was noted but remained 32% lower than pre-panel ( = .02). The slope of change using ITS changed from negative to positive but was nonsignificant ( = .26). CAUTI rates per 1,000 PD demonstrated greater reductions (pre- vs post-panel (RR 0.37; 95% CI, 0.29-0.47) and pre- vs post-panel COVID (RR 0.35; 95% CI, 0.26-0.46)). SIRs were unavailable before 2016, but median SIRs post-panel compared to post-panel COVID were similar (1.05 vs 1.56, respectively, = .067).

CONCLUSIONS

Implementation of the UTI panel was associated with a reduction in both UC and CAUTI with the impact maintained despite the COVID-19 pandemic.