Identifying multimorbidity risks in older adults: a cross-sectional study using the RGA screening data.

Area of Science:

• Gerontology and Geriatric Medicine
• Public Health and Epidemiology
• Chronic Disease Management

Background:

• Multimorbidity, defined as two or more chronic diseases, affects approximately 50% of US older adults.
• Consequences include increased vulnerability to illness, disease exacerbation, hospitalizations, and higher medical costs.
• Early identification of risk factors is crucial for healthcare decision-making and preventing adverse outcomes.

Purpose of the Study:

• To examine the presence of multimorbidity and specific geriatric syndromes in older adults using the Rapid Geriatric Assessment (RGA) tool.
• To assess the validity of the RGA as a screening tool for multimorbidity in diverse practice settings.

Main Methods:

• A cross-sectional study involving 16,615 individuals aged 65 and over in Missouri (2015-2024).
• The Rapid Geriatric Assessment (RGA) tool was administered, assessing four geriatric syndromes: frailty, sarcopenia, geriatric anorexia, and cognitive decline.
• Logistic regression analysis was used to determine associations between geriatric syndromes and multimorbidity (defined as five or more illnesses).

Main Results:

• 37.3% of participants reported having five or more illnesses (multimorbidity).
• Sarcopenia was strongly associated with multimorbidity (OR=3.807, p < 0.001).
• Geriatric anorexia (OR=1.329, p < 0.001) and dementia (OR=1.273, p < 0.001) were also significantly associated with higher odds of multimorbidity.

Conclusions:

• The Rapid Geriatric Assessment (RGA) tool is a valid screening instrument for identifying older adults with multimorbidity.
• Geriatric syndromes, particularly sarcopenia, geriatric anorexia, and dementia, are significant risk factors for multimorbidity.
• Early detection and management of these syndromes are essential for preventing further morbidity and disability in older populations.