Nutrition self-efficacy intervention to improve nutritional status of Iranian older adults.

ABSTRACT

OBJECTIVES: Older adults are a vulnerable group that is at risk of poor nutritional status, which can lead to disease and increase their healthcare costs. Our study aimed to investigate the impact of a self-efficacy intervention on the nutritional status of older adults. METHODS: A controlled before and after study was conducted on 110 older adults in the Mashhad, Iran, from 2020 to 2022. Participants were randomly allocated to the intervention (n = 55) and control groups (n = 55). Participants in the intervention group received educational training that was based on the self-efficacy theory. The control group received the routine care. Data collection tools included demographic information questionnaire, Mini Nutritional Assessment Questionnaire, and standard self-efficacy questionnaire. The questionnaires were completed at baseline (before intervention), instantly after the intervention, and at 3-months follow-up by participants in both groups. Data were analyzed using SPSS version 25 and the significance level was considered less than 0.05. RESULTS: The Mean of nutritional status in the intervention group, at the baseline, immediately after intervention and 3 months of follow-up were 25.1 ± 2.3, 28.3 ± 5.2 and 27.6 ± 6., respectively. This increase was significant (p < 0.001). Our findings revealed that self-efficacy among participants in the intervention group significantly changed (P < 0.001) across time from baseline through follow-up. There was no significant difference in the mean of self-efficacy and nutritional status in the control group during the study period (P > 0.05). CONCLUSION: This current study provided a basis to examine in the effectiveness of such intervention using a properly powered randomized controlled study. Therefore, it can be concluded that self-efficacy interventions are a promising approach to improving the nutritional behaviors of the older adults. TRIAL REGISTRATION IRCT20160619028529N9.