Retrospective analysis of value-driven outcomes of diabetic foot ulcer in a tertiary hospital in Singapore.

Abstract

This study analysed the clinical outcomes and healthcare costs associated with diabetic foot ulcer (DFU) within a tertiary healthcare centre in Singapore. This is a retrospective, single-centre study. Patient data were extracted from the hospital's electronic health system, including demographic, clinical and hospitalisation information. Hospitalisation costs were categorised into DFU-related and other hospitalisation costs. A one-way sensitivity analysis was performed to estimate the total healthcare costs associated with DFU. Tertiary centre within a population suffering from a diabetic epidemic. All patients aged 18 years or older who received DFU treatment between January 2019 and December 2023 at the Singapore General Hospital were included. A total of 2857 DFU patients were included in the study. In-hospital mortality remained stable at 5%-6% annually. Among the cohort, 39.1% underwent minor amputations, 19.6% had major amputations and 9.0% experienced both minor and major amputations. The median length of stay for surgical patients ranged from 10 (IQR 4-24) to 13 days (IQR 6-31), compared with 4 (IQR 2-8) to 5 (IQR 3-9.5) days for non-surgical patients. Total costs per admission for patients with DFU-related surgery ranged from US$28 588.96 to US$34 204.77, while for those without surgery, costs ranged from US$6637.59 to US$7955.23. Total hospitalisation costs for DFU during the study period ranged from US$65.87 million to US$72.16 million. All figures were inflation adjusted to 2023 US dollars. DFU poses a significant clinical and economic burden in Singapore. Understanding the costs associated with DFU is essential for resource allocation and planning in DFU management.