The Determinants of Caregiver use and its Costs for Elderly Inpatients in Korea: A study applying Andersen’s behavioral model of health care utilization and replacement cost method
Abstract Objectives: The average annual healthcare expenditure among elderly patients in Korea is increasing rapidly in indirect healthcare sectors, requiring an understanding of factors related to the use of both formal and informal caregivers. This study aims to analyze the factors related to caregiver use and caregiving costs among hospitalized patients due to acute illness or exacerbation of chronic diseases and whether they differ by age group.Methods: A total of 1,550 study participants from the Korea Health Panel Study Data 2017, consisting of 819 elderly inpatients and 731 nonelderly inpatients, were used for the analysis. Costing methods were applied according to the major type of caregiver during hospitalization. Predisposing, enabling, and need factors were considered to determine the possible factors associated with caregiver use. A two-part model was applied to analyze the factors related to care receiving and estimate incremental costs from care after stratifying subjects by age.Results: Elderly inpatients who used tertiary hospitals (OR: 2.44, p-value <0.00), received financial support (OR: 2.70, p-value <0.00), and had disability status (OR: 1.76, p-value <0.05) were more likely to rely on a caregiver, while elderly inpatients living by themselves had a lower probability of using caregivers (OR: 0.48, p-value <0.00). Also, there was a positive association between caregiving costs and the number of chronic diseases among elderly inpatients (β: 0.66, p-value <0.05) with incremental costs of $567.Conclusion: This study presented significant health-related and socio-environmental characteristics to the use of formal and informal caregiving and its related expenditures. Therefore, healthcare management plans that encompass clinical and social levels should be implemented to ease the caregiver burden.Trial registration: Retrospectively registered