2020 Volume 14 Issue 1 Pages 23-30
This research examined the effect of using preventive service in the long-term care insurance system on the basis of two outcome indicators. The subjects comprised 2791 elderly people who had recently been certified as being eligible for support［levels 1 and 2］between 2012 and 2014 in a suburb of Tokyo, and the occurrence of each event by 2016 was observed. Therefore, in the "one or more levels of decline of eligibility level" indicator, the use of the service increased the risk of an event occurring（HR 1.30, 95% CI: 1.17–1.45）. However, with the "mortality" indicator, the use of the service decreased the risk（HR 0.65, 95% CI: 0.52–0.80）. Furthermore, in "one or more levels of decline of eligibility level," it became clear that if an event were to occur relatively early, the range of decline would be small. A small decline of eligibility level detected at an early stage may preclude a serious change for the worse and have the effect of decreasing the risk of mortality. Considering such a positive effect, this event should be evaluated carefully.
