Effective Service Coverage of Long-Term Care among Older Persons in South Korea.

Background Global population aging, and the accelerated increase in the number of oldest-old adults, over 80 years, has implied a heightened need for long-term care (LTC). We aimed to provide a theoretical care cascade of LTC services to assess publicly funded LTC (Analysis 1) and to investigate the association between the use of LTC insurance (LTCI) and unmet care needs among older people (Analysis 2) in South Korea.Methods Analysis 1 used data from the eighth wave (2020) of the Korean Longitudinal Study of Aging (KLoSA), the 2020 National Health Insurance Service LTCI Statistical YearBook and the 2020 National Awareness Survey of LTCI. The care cascade consisted of the target population, service contacts, coverage and outcomes. Analysis 2 used the fifth to eighth waves of KLoSA, and LTCI analysis was based on three groups: not aware, aware but do not use and aware and use. Unmet care needs were defined as the absence of help among older people with care needs.Results Among 8,489,208 people aged 65 or older in 2020, 1,368,148 (16.1%) were estimated to want care. Of these, 62.7% (N = 857,984) had LTCI service contact and 807,067 (94.1%) of those had used LTCI services in the past year (Analysis 1). Older people who were aware and used LTCI were less likely to report unmet activities of daily living (ADL) (prevalence ratio (PR): 0.34, 95% confidence interval (CI): 0.18-0.66) or unmet instrumental ADL (IADL) needs (PR: 0.27, 95% CI: 0.17-0.43) than those who were not aware (Analysis 2).Conclusions This article provides a theoretical cascade to assess LTC provision in South Korea and a preliminary model for other countries. Korea's LTCI is associated with reduced unmet ADL and IADL needs.