Age and Ageing Advance Access originally published online on February 23, 2004
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Age and Ageing 2004; 33: 266-272
Age and Ageing Vol. 33 No. 3 © British Geriatrics Society 2004; all rights reserved
Research Paper |
Lower levels of serum albumin and total cholesterol and future decline in functional performance in older persons: the Longitudinal Aging Study Amsterdam
Institute for Research in Extramural Medicine (EMGO Institute), VU University Medical Center, Amsterdam, The Netherlands
Address correspondence to: B. W. M. Schalk, EMGO Institute, VU University Medical Center, Van der Boechorststraat 7, 1081 BT Amsterdam, The Netherlands. Fax: (+31) 20 444 6775. Email: bwm.schalk{at}vumc.nl
Abstract
Background: both serum albumin and total cholesterol are potential markers of frailty. A decline in functional status is one of the key components of frailty.
Objective: the aim of this study was to investigate the association of serum albumin and total cholesterol, separately and combined, with future decline in functional performance.
Design: the Longitudinal Aging Study Amsterdam, an ongoing population-based longitudinal study, started in 1992/1993 with a follow-up every 3 years.
Participants: 1,064 men and women aged 5585 years with complete data on serum albumin and total cholesterol at baseline, and functional performance at baseline and 3-year follow-up.
Measurements: at baseline, serum albumin and total cholesterol were measured. At baseline and 3 years later, decline in functional status was measured with three performance tests (chair stand, 3-metre walk, putting on and taking off a cardigan). Associations were adjusted for age, life-style and health-related factors.
Results: albumin concentration was not associated with decline in functional performance in men and women. Women with lower serum total cholesterol concentration (
5.2 mmol/l) were more likely to decline in functional status compared to women with higher serum total cholesterol concentration (reference; OR = 2.50; 95% CI 1.075.84). Men with lower serum albumin (
43 g/l) and lower serum total cholesterol concentration were three times more likely to decline in functional performance compared to men with higher levels (OR = 3.00; 95% CI 1.008.97). In women, a similar trend was found (OR = 1.73; 95% CI 0.348.94), although not statistically significant.
Conclusions: a combination of low albumin and low cholesterol levels may increase the risk of future functional decline.
Keywords: serum albumin, serum cholesterol, functional status, performance test, frailty, elderly, longitudinal
Received November 12, 2002; Revision received November 25, 2003. accepted in revised form November 25, 2003.
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