BACKGROUND: Frailty is a clinical syndrome generally associated with a greater risk for adverse outcomes such as falls, disability, institutionalization, and death. Cognition and dementia have already been considered as components of frailty, but the role of frailty as a possible determinant of dementia, Alzheimer's disease (AD), and vascular dementia (VaD) has been poorly investigated. We estimated the predictive role of frailty syndrome on incident dementia and its subtypes in a nondemented, Italian, older population. METHODS: We evaluated 2581 individuals recruited from the Italian Longitudinal Study on Aging sample population consisting of 5632 subjects aged 65 to 84 years and with a 3.9-year median follow-up. A phenotype of frailty according to a modified measurement of Cardiovascular Health Study criteria was operationalized. Dementia, AD, and VaD were classified using current published criteria. RESULTS: Over a 3.5-year follow-up, 65 of 2581 (2.5%) older subjects, 16 among 252 frail individuals (6.3%), of which 9 were affected by VaD (3.6%), developed overall dementia. In a proportional hazards model, frailty syndrome was associated with a significantly increased risk of overall dementia (adjusted hazard ratio: 1.85; 95% confidence interval: 1.01-3.40) and, in particular, VaD (adjusted hazard ratio: 2.68; 95% confidence interval: 1.16-7.17). The risk of AD or other types of dementia did not significantly change in frail individuals in comparison with subjects without frailty syndrome. CONCLUSION: In our large population-based sample, frailty syndrome was a short-term predictor of overall dementia and VaD.
BACKGROUND: Frailty is a clinical syndrome generally associated with a greater risk for adverse outcomes such as falls, disability, institutionalization, and death. Cognition and dementia have already been considered as components of frailty, but the role of frailty as a possible determinant of dementia, Alzheimer's disease (AD), and vascular dementia (VaD) has been poorly investigated. We estimated the predictive role of frailty syndrome on incident dementia and its subtypes in a nondemented, Italian, older population. METHODS: We evaluated 2581 individuals recruited from the Italian Longitudinal Study on Aging sample population consisting of 5632 subjects aged 65 to 84 years and with a 3.9-year median follow-up. A phenotype of frailty according to a modified measurement of Cardiovascular Health Study criteria was operationalized. Dementia, AD, and VaD were classified using current published criteria. RESULTS: Over a 3.5-year follow-up, 65 of 2581 (2.5%) older subjects, 16 among 252 frail individuals (6.3%), of which 9 were affected by VaD (3.6%), developed overall dementia. In a proportional hazards model, frailty syndrome was associated with a significantly increased risk of overall dementia (adjusted hazard ratio: 1.85; 95% confidence interval: 1.01-3.40) and, in particular, VaD (adjusted hazard ratio: 2.68; 95% confidence interval: 1.16-7.17). The risk of AD or other types of dementia did not significantly change in frail individuals in comparison with subjects without frailty syndrome. CONCLUSION: In our large population-based sample, frailty syndrome was a short-term predictor of overall dementia and VaD.
Authors: A Hajek; C Brettschneider; T Posselt; C Lange; S Mamone; B Wiese; S Weyerer; J Werle; A Fuchs; M Pentzek; J Stein; T Luck; H Bickel; E Mösch; K Heser; F Jessen; W Maier; M Scherer; S G Riedel-Heller; H-H König Journal: J Nutr Health Aging Date: 2016 Impact factor: 4.075
Authors: Alden L Gross; Qian-Li Xue; Karen Bandeen-Roche; Linda P Fried; Ravi Varadhan; Mara A McAdams-DeMarco; Jeremy Walston; Michelle C Carlson Journal: J Gerontol A Biol Sci Med Sci Date: 2016-04-15 Impact factor: 6.053
Authors: Sayoni Saha; Daniel J Hatch; Kathleen M Hayden; David C Steffens; Guy G Potter Journal: Am J Geriatr Psychiatry Date: 2016-06-06 Impact factor: 4.105
Authors: Mara A McAdams-DeMarco; Jingwen Tan; Megan L Salter; Alden Gross; Lucy A Meoni; Bernard G Jaar; Wen-Hong Linda Kao; Rulan S Parekh; Dorry L Segev; Stephen M Sozio Journal: Clin J Am Soc Nephrol Date: 2015-11-16 Impact factor: 8.237