Analysis of hospitalization expenses and influencing factors for major cancer patients in a teriary hospital in Sichuan ,China:a five-year retrospective study

Background To analyze hospitalization costs and associated determinants for major cancers in a Tertiary hospital in Sichuan Province, providing evidence-based insights for cost-containment strategies. Method The first page data of the medical record cancer patient from January 1, 2019 to December 31, 2023 were collected from the medical records homepage management and statistical analysis system of a tertiary hospital in Sichuan Province.The influencing factors of hospitalization costs were statistically analyzed by Univariate and multiple linear regeression analysis. Results A total of 12161 cancer inpatients were included in the analysis from 2019 to 2023. Among the main cancer cost, diagnostic services(pathology, laboratory, imaging and clinical diagnostics) and pharmaceuticals (Western,Traditional Chinese medicine) constituted the largest cost components (29.35% and 26.02%), respectively. Length of stay (LOS),surgical intervention, and clinical pathway implementation significantly predicted costs (all P < 0.05).Cancer type, disease outcome, discharge year, and payment method showed partial effects, though statistical significance varied across reference subgroups. Conclusion High hospitalization costs exacerbate financial burdens in cancer care.Strengthening the whole process management of diagnosis and treatment of patients from admission to discharge, to reduce the waiting time of patients before surgery and average length of hospitalization, and the hospitalization cost of patients with malignant tumors can be reduced.