Abstract: FR-PO1094
Weekend Admission and Outcomes in Hospitalized Patients on Peritoneal Dialysis: A National Inpatient Sample Study
Session Information
- Home Dialysis: Modalities, Barriers, Utilization, and Clinical Outcomes
October 23, 2026 | Location: Exhibit Hall A, Convention Center
Abstract Time: 10:00 AM - 12:00 PM
Category: Dialysis
- 802 Dialysis: Home Dialysis and Peritoneal Dialysis
Authors
- Munoz Verdugo, Irma Andrea, Mayo Clinic Minnesota, Rochester, Minnesota, United States
- Thongprayoon, Charat, Mayo Clinic Minnesota, Rochester, Minnesota, United States
- Aiumtrakul, Noppawit, Mayo Clinic Minnesota, Rochester, Minnesota, United States
- Kaewput, Wisit, Phramongkutklao College of Medicine, Bangkok, Thailand
- Suppadungsuk, Supawadee, Mahidol University Faculty of Medicine Ramathibodi Hospital, Bangkok, Thailand
- Wathanavasin, Wannasit, Charoenkrung Pracharuk Hospital, Bangkok, Thailand
- Cheungpasitporn, Wisit, Mayo Clinic Minnesota, Rochester, Minnesota, United States
Group or Team Name
- Division of Nephrology and Hypertension, Department of Medicine
Background
Impact of weekend admission among patients with end-stage kidney disease (ESKD) receiving peritoneal dialysis (PD) is not well characterized. We examined whether weekend admission was associated with differences in in-hospital treatments, complications, outcomes, and resource utilization among hospitalizations involving patients with ESKD receiving PD
Methods
We conducted a retrospective observational study using the National Inpatient Sample from 2003 to 2021. Hospitalizations involving adults with ESKD receiving PD were identified using ICD-9 and ICD-10 diagnosis and procedure codes. Admissions were categorized as weekend or weekday admissions. Clinical characteristics, in-hospital treatments, complications, outcomes, length of stay, and hospitalization costs were compared between groups. Multivariable logistic and linear regression models were used to assess the association between admission day and outcomes, adjusting for patient demographic, clinical, and hospital-level characteristics. Discharge weights were applied to generate nationally representative estimates
Results
A total of 120,105 hospitalizations involving patients with ESKD receiving PD were included; 26,132 admissions (21.8%) occurred on weekends and 93,973 (78.2%) occurred on weekdays. Compared with weekday admissions, weekend admissions had higher rates of PD-related peritonitis, PD mechanical complications, metabolic acidosis, sepsis, and discharge against medical advice, but lower use of blood transfusion. After adjustment, weekend admission remained associated with lower odds of blood transfusion use (OR, 0.94; 95% CI, 0.90–0.98), higher odds of PD-related peritonitis (OR, 1.15; 95% CI, 1.10–1.20), and higher odds of discharge against medical advice (OR, 1.15; 95% CI, 1.01–1.32). Weekend admission was not associated with in-hospital mortality. Weekend admissions were associated with shorter length of stay by 0.3 days and lower hospitalization costs by $1,671
Conclusion
Among hospitalizations involving patients with ESKD receiving PD, weekend admission was associated with selected differences in treatments, complications, discharge disposition, and resource utilization, but not in-hospital mortality. These findings suggest that weekend admission may influence aspects of inpatient PD care and outcomes