Assessment of the relation between depression, frailty, nutrition and quality of life among older adults: findings from a cross-sectional study in Greece.

Background: Quality of life (QOL) among older adults is a crucial aspect of geriatric care, particularly in the context of global demographic shifts toward ageing societies. Understanding the determinants of QOL in older adults is essential for developing effective interventions to promote well-being in this population.

Methods: This cross-sectional study conducted in Greece aimed to investigate the complex relationship between depression, frailty, nutritional status, and QOL on 90 older adults (aged ≤65). Assessment instruments including the World Health Organization Quality of Life (WHOQoL)-BREF questionnaire, Geriatric Depression Scale (GDS), Clinical Frailty Scale (CFS), and Mini Nutritional Assessment (MNA) were utilised to evaluate various dimensions of QOL, depressive symptoms, frailty, and nutritional status.

Results: The study revealed significant negative correlations between depression and frailty with all domains of QOL (P < 0.05), indicating that higher levels of depressive symptoms and frailty were associated with lower QOL across physical, psychological, social, and environmental dimensions. Conversely, positive correlations were found between nutritional status and all QOL domains (P < 0.05), suggesting that better nutritional status was linked to higher QOL. Multivariate logistic regression analysis further demonstrated associations between nutritional status and participant characteristics, with females being more likely to be malnourished (odds ratio (OR) = 6.56, P = 0.013), while better health status (OR = 0.34, P = 0.486) and marital status (OR = 0.02, P = 0.019) were protective against malnutrition.

Conclusion: These findings underscore the interconnectedness of depression, frailty, and nutritional status in shaping QOL among individuals. Holistic interventions targeting mental health, physical vulnerability, and nutritional well-being are essential for promoting overall well-being and functional outcomes in this population.