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. 2019 Oct 11;16(20):3837.
doi: 10.3390/ijerph16203837.

Effects of a Dementia Screening Program on Healthcare Utilization in South Korea: A Difference-In-Difference Analysis

Su Jung Lee  1 , Hyun-Ju Seo  2 , Dong Young Lee  3 , So-Hyun Moon  4
Affiliations

Effects of a Dementia Screening Program on Healthcare Utilization in South Korea: A Difference-In-Difference Analysis

Su Jung Lee et al. Int J Environ Res Public Health. .

Abstract

To determine whether Seoul's dementia screening program increased the rate of diagnosis and the appropriate use of healthcare services for people with dementia, a retrospective data analysis was conducted based on administrative data from the Health Insurance Review and Assessment Service. Two cohorts were constructed to represent the year before Seoul's dementia screening program began (2007) (control group) and the year after the implementation of the program (2009) (treatment group). A difference-in-difference analysis was used to compare the diagnosis rates, number of clinic visits, and dementia-related drug prescription rates for 4 districts that implemented dementia screening programs between 2007 and 2009 and 14 areas that did not. After the introduction of the program, there was a 55.4% increase in physician-diagnosed dementia. The "average drug cost per patient" increased by 52.2% (Exp(β) = 1.522, p = 0.0264), the "average outpatient visits per patient" tended to increase by 13.5% (Exp(β) = 1.135, p = 0.1852), and the "average outpatient treatment fees per visit per patient" tended to increase by 24.4% (Exp(β) = 1.244, p = 0.0821). The implementation of dementia screening programs led to an increase in healthcare service utilization. Therefore, this program was found to be an effective strategy for reducing undiagnosed dementia cases and encouraging patients to use adequate healthcare services.

Keywords: dementia; difference in difference; mass screening; policy analysis.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Overview of study design to evaluate the effects of the introduction of a dementia screening program (DSP).
Figure 2
Figure 2
Outcomes of interest regarding volume of health service utilization.
Figure 3
Figure 3
Outcomes of interest regarding strength of healthcare service utilization.
See this image and copyright information in PMC

References

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