The Effect of Health Belief Model-Based Education on Knowledge and Behavioral Changes Regarding Dementia in Older Adults

While age is one of the strongest known risk factors for the onset of dementia, dementia is not an inevitable consequence of aging. Several modifiable risk factors, such as physical inactivity, obesity, diabetes, hypertension, smoking, excessive alcohol consumption, depression, and social isolation, increase the risk of developing dementia (WHO, 2025). Positive health beliefs and attitudes toward preventing or reducing the risk of dementia can encourage individuals to adopt healthy lifestyle behaviors (Vrijsen et al., 2021). Many studies in the literature have investigated the effects of lifestyle interventions on dementia prevention and reported that adhering to a healthy lifestyle can improve cognitive function and reduce or delay the risk of dementia (An et al., 2025; Siette 2023; Lee et al., 2022). The Health Belief Model argues that individuals' health behaviors are influenced by their beliefs, values, and attitudes (Gözüm \& Çapık, 2014). Considering individuals' beliefs and attitudes towards health, the education and treatment offered can be tailored to the individual and their benefit can be ensured (Gözüm \& Çapık, 2014; Li et al., 2022). Within the framework of the Health Belief Model, it has been stated that reducing the perceived barriers in individuals in the intervention process aimed at preventing dementia is a fundamental factor in strengthening their beliefs about dementia prevention and encouraging the development of healthy behavioral habits (Li et al., 2022). Therefore, it is thought that Health Belief Model-based education applied to the elderly may have an effect on individuals' level of knowledge about dementia and their motivation to change behaviors to reduce the risk of dementia.

NCT Number	NCT07505693
Lead Sponsor	Hasan Kalyoncu University
Conditions	Aged 60 Years or Older, Volunteering to Participate in the Study, Dementia Education, Prevention Intervention
Enrollment	66 participants
Start Date	2026-02-23
Primary Completion	2026-04-22 (estimated)
Study Completion	2026-05-22 (estimated)
Updated on ClinicalTrials.gov	2026-06-02