Comparison of cystatin C and creatinine as predictors of cardiovascular events in a community-based elderly population.

Abstract:

BACKGROUND:Reduced renal function is an established risk factor for cardiovascular events. We compared 3 measures of renal function--serum cystatin C, serum creatinine, and calculated creatinine clearance--as predictors of subsequent cardiovascular events in a community-based population of elderly individuals. METHODS:Comprehensive cardiovascular risk factor data were available for 1410 surviving participants of previous Busselton health surveys who were >or=60 years old. Hazard ratios for risk of incident coronary heart disease and cardiovascular disease over 10 years of follow-up were derived for each baseline measure of renal function by use of Cox regression. RESULTS:All measures of renal function were significantly related to risks of morbidity and mortality from coronary heart disease and cardiovascular disease. There were 453 incident cardiovascular disease events; and the age- and sex-adjusted hazard ratios (95% CIs) were 1.34 (1.23-1.46), 1.32 (1.20-1.45), and 1.22 (1.06-1.41) per 1-SD deterioration in cystatin C, creatinine, and creatinine clearance, respectively. All 3 measures gave approximately the same age-adjusted relative risk estimates. After further adjustment for established cardiovascular risk factors, the relative risk estimates were all reduced but remained statistically significant (P < 0.05). Cystatin C was not a significant predictor for cardiovascular disease after adjustment for creatinine clearance. CONCLUSIONS:In relation to predicting risk for coronary heart disease or cardiovascular disease over a 10-year follow-up in a community-based population of elderly subjects, there was no evidence that cystatin C was a better risk predictor than creatinine or creatinine clearance.

journal_name

Clin Chem

journal_title

Clinical chemistry

authors

Beilby J,Divitini ML,Knuiman MW,Rossi E,Hung J

doi

10.1373/clinchem.2009.135962

subject

Has Abstract

pub_date

2010-05-01 00:00:00

pages

799-804

issue

5

eissn

0009-9147

issn

1530-8561

pii

clinchem.2009.135962

journal_volume

56

pub_type

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