Purpose: The purpose of this study was to identify the factors associated the dementia preventive behavior of older adults living in the community by adding fear of dementia to the information-motivation-behavioral skills model. Method: The data was collected from October 10~31, 2019 by using structured questionnaires for 202 older people aged over 65 living in the community. The data was analyzed independent t-test, one-way ANOVA, Scheffé test, Pearson's correlation coefficient, multiple regression and Bootstrapping by using SPSS/WIN 24.0. Results: As a result of the analysis, it was shown that factors associated dementia preventive behavior were age, social support, self- efficacy, and fear of dementia, which explained 20.9% dementia preventive behavior (F=13.01, p<.001). The verification result of the mediating effects of self-efficacy and dementia fear by using Bootstrapping method in the relationship between dementia knowledge, dementia attitude, social support and dementia prevention behavior based on the information-motivation-behavioral skills model showed that indirect effects. Conclusion: When an effective dementia preventive behavior program is developed and provided for improving social support and self-efficacy and for reducing fear of dementia based on the results, it will contribute to the improvement of dementia prevention behavior for older adults.
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