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Abstract
Reduced levels of serum albumin concentration, a routine blood test, within the “normal”
range have been reported to be associated with mortality risk. The literature is reviewed,
with a focus on cohort studies meeting specified criteria, and findings are summarized.
In studies of many populations, comprising healthy subjects and patients with acute
or chronic illness, serum albumin concentration is inversely related to mortality
risk in a graded manner over its entire range; the estimated increase in the odds
of death ranges from 24% to 56% for each 2.5 g/l decrement in serum albumin concentration.
The association predicts overall and causespecific mortality including cardiovascular
mortality. It is likely that albumin concentration is a highly sensitive indicator
of preclinical disease and disease severity. A direct protective effect of the albumin
molecule is suggested by the persistence of the association after adjustment for other
known risk factors and preexisting illness, and after exclusion of early mortality.
Although biologically plausible, there is no direct evidence for this hypothesis.
Serum albumin concentration is an independent predictor of mortality risk and could
be useful in the quantification of risk in a broad range of clinical and research
settings.
Keywords
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Article info
Publication history
Accepted:
February 3,
1997
Identification
Copyright
© 1997 Published by Elsevier Inc.