# P-1080. Multidrug-Resistant Organism Status and Its Association With Hospice Use and End-of-Life Care Patterns in Patients With Advanced Cancer referred Palliative Care

## TL;DR

Patients with advanced cancer and multidrug-resistant organisms may receive more aggressive end-of-life care and higher medical costs.

## Contribution

This study identifies associations between MDRO status and increased healthcare utilization in palliative care patients.

## Key findings

- MDRO status was linked to lower hospice use and more ICU admissions.
- Patients with MDRO had higher medical costs near the end of life.
- MDRO was associated with more deaths occurring in tertiary hospitals.

## Abstract

Multidrug-resistant organisms (MDRO) are increasingly prevalent and may contribute to more aggressive healthcare utilization near the end-of-life, particularly among patients with advanced cancer receiving palliative care (PC).Baseline characteristics of study populationOutcome comparison of aggressiveness care

Baseline characteristics of study population

Outcome comparison of aggressiveness care

We conducted a retrospective cohort study of patients with advanced cancer who received PC consultation at a tertiary hospital in South Korea between January 2018 and December 2022 and died by June 2023. Clinical data were linked to nationwide health insurance claims from the National Health Insurance Service to ensure comprehensive outcome capture. MDRO status was defined by detection of resistant organisms from any clinical specimen. Outcomes included hospice utilization, location of death, end-of-life aggressive care, and medical costs. Adjusted associations were estimated using logistic and gamma regression models.Comparison of medical cost

Comparison of medical cost

Among 6,151 patients, 523 (8.5%) had MDRO detected. MDRO status was associated with significantly lower use of community-based hospice care, including inpatient hospice (24.1% vs. 37.8%; adjusted odd ratios [aOR] 0.55, 95% confidence interval [CI], 0.45–0.69; P< 0.001) and home hospice (2.7% vs. 7.4%; aOR 0.39, 95% CI, 0.23–0.67; P= 0.001). It was also linked to more frequent deaths in tertiary hospitals (aOR 1.97; 95% CI, 1.62–2.39, P< 0.001), and higher intensive care unit admissions (aOR 2.18; 95% CI, 1.51–3.16, P< 0.001) and renal replacement therapy (aOR 1.63; 95% CI, 1.03–2.60, P=0.010). Medical costs were consistently higher in the MDRO group across all end-of-life trajectory before death.

MDRO status may be associated with greater healthcare intensity and the end-of-life aggressive care among patients with advanced cancer referred PC.

All Authors: No reported disclosures