Abstract: Objective: To analyze the effect of brain health education combined with motivational interviewing on dementia knowledge, belief and lifestyle of community residents at risk of dementia, and to provide practical basis for the primary prevention of dementia in community. Methods: From March 2021 to February 2022, a total of 83 residents at risk of dementia who participated in free physical examination and established health management records in a community health service center in Chongqing were selected as research objects by convenient sampling method. They were divided into intervention group (n=42) and control group (n=41) by random number table method. The control group received community routine services, and the intervention group received brain health education combined with motivational interviewing intervention on the basis of the control group, the intervention time was 3 months. Knowledge, belief and lifestyle level of dementia prevention, body mass index and waist-to-hip ratio were measured at T0 (before the intervention group received the intervention), T1 (within one week after the intervention) and T2 (3 months after the intervention), respectively. Results: After intervention, the levels of knowledge, belief and lifestyle of dementia prevention at T1 and T2 in the intervention group were significantly higher than those in the control group, with statistical significance (all P<0.05), while there were no significant differences in body mass index and waist-to-hip ratio between the two groups at T1 and T2 (all P>0.05). Conclusion: The brain health education combined with motivational interviewing intervention developed in this study can effectively improve the knowledge, belief and lifestyle of community residents at risk of dementia.

Key words: brain health; dementia risk; motivational interviewing; randomized controlled trial