Multimorbidity as specific disease combinations, an important predictor factor for mortality in octogenarians: the...

Area of Science:

• Gerontology
• Epidemiology
• Public Health

Background:

• The global population is aging, leading to an increased prevalence of multimorbidity among the elderly.
• Multimorbidity, the co-occurrence of multiple chronic conditions, presents a significant challenge in geriatric care.

Purpose of the Study:

• To investigate the impact of specific multimorbidity patterns on all-cause mortality in older adults.
• To analyze mortality risks at 3- and 5-year follow-up periods based on defined multimorbidity patterns.

Main Methods:

• A prospective community-based cohort study involving 328 individuals aged 85 years at baseline.
• Data collected included sociodemographic variables, sensory status, cardiovascular risk factors, and comorbidity.
• Multimorbidity patterns were defined as combinations of two or three of 16 chronic conditions.

Main Results:

• Chronic obstructive pulmonary disease (COPD), atrial fibrillation (AF), and malignancy were individually associated with increased mortality at 3 years.
• Dementia, malignancy, and COPD showed significant associations with mortality at 5 years, after adjusting for functional status.
• The combination of AF, chronic kidney disease (CKD), and visual impairment was the strongest predictor of 3-year mortality (HR: 4.19).
• Hypertension, CKD, and malignancy predicted 5-year mortality (HR: 3.24).

Conclusions:

• Specific multimorbidity patterns significantly influence mortality risk in octogenarians, exceeding the risk posed by individual conditions.
• The combination of AF, CKD, and visual impairment emerged as a critical predictor of 3-year mortality.
• A targeted approach to managing multimorbidity in the elderly population is essential.