Effect of long-term care insurance on incidence of falls in old people with disability based on difference-in-differences method
Objective To analyze the effect of long-term care insurance on the incidence of falls in old people with disability,and the modification effect of different living arrangements.Methods Based on the discharge diagnosis records of the hospitalization in urban residents who applied for long-term care insurance in Chengdu from July 2014 to June 2021,those who received long-term care insurance were selected as the intervention group and those who received no long-term care insurance were selected as the control group,the changes in the incidence of falls before and after the long-term care were analyzed using difference-in-differences method,and the modification effects of different living arrangements were explored using stratified analysis.Results Long-term care insurance significantly reduced the risk for monthly incidence of falls in older adults[average treatment effects on treated(ATT)=-1.21%(95%CI:-1.82%--0.60%)],and the effect increased over time(ATT=-1.26%,95%CI:-1.93%--0.59%).Long-term care insurance had a significant effect on reducing the incidence of falls in old people living with spouses/family members(ATT=-0.92%,95%CI:-1.47%--0.37%)and in nursing facilities/hospitals(ATT=-2.10%,95%CI:-3.81%--0.40%),but it had no significant effect in those living alone.Conclusions Long-term care insurance can effectively reduce the incidence of falls in old people with disability,showing a positive effect.Living with family members or in nursing facilities/hospitals has a modification effect of the implementation of long-term care insurance policy.It is necessary to pay attention to key populations in the future and expand the coverage of long-term care insurance.
Long-term care insuranceOld people with disabilityDifference-in-differences methodFall