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Title:	Evidence of functional declining and global comorbidity measured at baseline proved to be the strongest predictors for long-term death in elderly community residents aged 85 years: a 5-year follow-up evaluation, the OCTABAIX study
Author:	Formiga Pérez, Francesc; Ferrer, Assumpta; Padros, Gloria; Montero Saez, Abelardo; Giménez Argente, Carme; Corbella, Xavier
Abstract:	Objective: To investigate the predictive value of functional impairment, chronic conditions, and laboratory biomarkers of aging for predicting 5-year mortality in the elderly aged 85 years. Methods: Predictive value for mortality of different geriatric assessments carried out during the OCTABAIX study was evaluated after 5 years of follow-up in 328 subjects aged 85 years. Measurements included assessment of functional status comorbidity, along with laboratory tests on vitamin D, cholesterol, CD4/CD8 ratio, hemoglobin, and serum thyrotropin. Results: Overall, the mortality rate after 5 years of follow-up was 42.07%. Bivariate analysis showed that patients who survived were predominantly female (P=0.02), and they showed a significantly better baseline functional status for both basic (P<0.001) and instrumental (P<0.001) activities of daily living (Barthel and Lawton index), better cognitive performance (Spanish version of the Mini-Mental State Examination) (P<0.001), lower comorbidity conditions (Charlson) (P<0.001), lower nutritional risk (Mini Nutritional Assessment) (P<0.001), lower risk of falls (Tinetti gait scale) (P<0.001), less percentage of heart failure (P=0.03) and chronic obstructive pulmonary disease (P=0.03), and took less chronic prescription drugs (P=0.002) than nonsurvivors. Multivariate Cox regression analysis identified a decreased score in the Lawton index (hazard ratio 0.86, 95% confidence interval: 0.78-0.91) and higher comorbidity conditions (hazard ratio 1.20, 95% confidence interval: 1.08-1.33) as independent predictors of mortality at 5 years in the studied population. Conclusion: The ability to perform instrumental activities of daily living and the global comorbidity assessed at baseline were the predictors of death, identified in our 85-year-old community-dwelling subjects after 5 years of follow-up.
Subject(s):	-Mortalitat -Geriatria -Envelliment -Comorbiditat -Mortality -Geriatrics -Aging -Comorbidity
Rights:	cc-by-nc (c) Formiga Pérez, Francesc et al., 2016 http://creativecommons.org/licenses/by-nc/3.0/es
Document type:	Article Article - Published version
Published by:	Dove Medical Press
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