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논문분류	춘계학술대회 초록집
제목	Comparative Analysis of Medical Costs by Dialysis Modality (Hemodialysis Vs. Peritoneal Dialysis)
저자	Young-Ki Lee
출판정보	2025; 2025(1):
키워드	cost, modality, hemodialysis, peritoneal dialysis
초록	In Korea, the number of patients with chronic kidney disease (CKD) requiring dialysis is increasing rapidly, placing a significant financial burden on the healthcare system. Hemodialysis (HD) accounts for about 90% of dialysis modality while the use of peritoneal dialysis (PD) is steadily decreasing. This study aimed to examine serial changes in the choice of dialysis modality and subsequent healthcare costs in Korean patients. Our study included adult patients diagnosed with CKD who received medical services related to the codes V001 (HD) and V003 (PD) using National Health Insurance claims data from 2018 to 2022. Serial changes in the number of patients with HD and PD were investigated. Propensity score matching was performed to adjust for differences in age, gender, health insurance status, and comorbidities, and then the average annual medical expenses per patient according to dialysis methods were compared. Patients who received both HD and PD during study period were excluded from the cost analysis. From 2018 to 2022, HD patients increased by 23% (67,562 to 83,071), while PD patients decreased by 8.5% (5,573 to 5,097). Consequently, the HD proportion rose from 92.4% to 94.2%, while PD declined from 7.6% to 5.8%. In 2022, the annual medical expenses for HD patients were 30.5 million KRW, which was significantly higher than the 22.66 million KRW for PD patients, with a difference of 7.84 million KRW. HD patients were older than PD patients, and had a higher proportion of men, medical aid recipients, and diabetics. Even after matching for patient characteristics, HD costs remained higher (30.60 vs. 22.66 million KRW). This difference remained consistent regardless of age or diabetic status. Dialysis population and related costs are growing rapidly with a pronounced reliance on HD. HD has a higher cost per patient than PD.
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