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Abstract Background To explore the factors affecting healthcare utilization (both inpatient and outpatient services) among foreign beneficiaries of the National Health Insurance (NHI) in Korea. Methods We conducted a two-part model analysis employing Andersen's behavioral framework, using health insurance claims data from 2022. Results The results indicated that individual need characteristics, such as disability, CCI, and chronic diseases, had the most significant impact on total healthcare utilization and its associated costs. The next significant characteristic was the residence period; the longer the period, the higher the likelihood of healthcare utilization, but the lower the associated costs. Among the predisposing characteristics, individuals aged 65 years and older had the most significant impact on healthcare costs. Additionally, among the enabling characteristics, residency period, residency status, and beneficiary type were most significant. Conclusion Foreigners residing in Korea are eligible to use the Korean healthcare system by enrolling in NHI. As the foreign population is projected to grow even faster due to Korea's aging society and low birth rate, this study can assist public health administrators in formulating evidence-based policies.
Lee et al. (Fri,) studied this question.