Age and Ageing Advance Access originally published online on January 31, 2008
Age and Ageing 2008 37(2):161-166; doi:10.1093/ageing/afm195
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Development of an easy prognostic score for frailty outcomes in the aged
1 Department of Internal Medicine, Cardioangiology and Hepatology, University of Bologna, Italy
2 Department of Medicine, McMaster University, Canada
Address correspondence to: Giovanni Ravaglia. Tel: +39-051-6364310; Fax: +39-051-340877. Email: ravaglia{at}med.unibo.it
Background: identification of frailty is recommended in geriatric practice. However, there is a lack of frailty scores combining easy-to-collect predictors from multiple domains.
Objective: to develop a frailty score including only self-reported information and easy-to-perform standardised measurements recommended in routine geriatric practice.
Design: prospective population-based study.
Setting/Participants: included 1,007 Italian subjects aged 65 and over.
Measurements: seventeen baseline possible mortality predictors from several domains, 4-year risk of mortality and other adverse health outcomes associated with frailty [fractures, hospitalisation, and new and worsening activities of daily living (ADL) disability].
Methods: a multivariate Cox model was used to identify the best sub-group of independent predictors and to develop a mortality prognostic score, defined as the number of adverse predictors present. Logistic regression was used to verify whether the score also predicted risk of other frailty outcomes in the cohort survivors.
Results: nine independent mortality predictors were identified. Among subjects with score 
3, each one point increase in the score was associated with a doubling in mortality risk and, among survivors, with an increased risk of all the other adverse health outcomes.
Conclusions: nine easy-to-collect predictors may identify aged people at increased risk of adverse health outcomes associated with frailty.
Keywords: frailty, ageing, mortality, fractures, disability, elderly
Received 12 April 2007; accepted in revised form 24 September 2007.
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