Journal
EUROPEAN JOURNAL OF PUBLIC HEALTH
Volume 18, Issue 4, Pages 406-409Publisher
OXFORD UNIV PRESS
DOI: 10.1093/eurpub/ckn020
Keywords
functional decline; mortality; nonagenarian; physical performance
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Background: Few studies have prospectively evaluated predictors of mortality or decline in functional capacity in nonagenarians. The aim of this study is to determine predictors of death or functional decline in basic activities of daily living in nonagenarians after 2 years of follow-up. Methods: One hundred and seventy-six nonagenarians were prospectively evaluated. Functional status was determined by the Lawton-Brody index (LI) and the Barthel Index (BI), and cognition by the Spanish version of the Mental State Examination. The Charlson score was used to measure co-morbidity. Nutritional status was evaluated by the short version of the Mini Nutritional Assessment questionnaire. Results: The sample comprised 135 women (76.3%) and 41 men. Mean age was 93 +/- 3.2 years. Mortality after 2 years was 36.3%. Forty-six (41%) of the 112 survivors presented BI losses >19%. One hundred and ten subjects (63%) presented the combined negative outcome item (death or functional decline). A multiple stepwise logistic regression analysis identified two variables associated with a fall of >19% on the BI or death: a low LI (odds ratio 0.785, 95% CI 0.656-0.940) and a low score at baseline on the Spanish version of the Mental State Examination (odds ratio 0.950, 95% CI 0.914-0.987). Conclusion: Better cognitive status and higher capacity to perform instrumental activities of daily living (ADL) at baseline are the best predictors to identify which nonagenarians survived without major functional decline after a 2-year follow-up period.
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