Document Detail


Kidney function and anemia as risk factors for coronary heart disease and mortality: the Atherosclerosis Risk in Communities (ARIC) Study.
MedLine Citation:
PMID:  16442920     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Kidney failure causes anemia and is associated with a very high risk of coronary heart disease (CHD). Mildly to moderately decreased kidney function is far more common and also is associated with an elevated prevalence of anemia and CHD risk. Recent data suggest an even higher risk of CHD when both conditions are present. METHODS: We investigated the association of kidney dysfunction and anemia with CHD events (fatal or nonfatal CHD or coronary revascularization procedures) and CHD and all-cause mortality over 12 years of follow-up in 14971 adults aged 45 to 64 years in the ARIC Study. Glomerular filtration rate (GFR) was estimated from calibrated serum creatinine using the MDRD Study equation (< 30 mL/min per 1.73 m2 excluded, n = 32). Anemia was defined as hemoglobin level < 13.5 g/dL in men (648/6746, 9.6%) and < 12 g/dL in women (1049/8225, 12.8%). RESULTS: The prevalence of anemia was progressively higher at lower estimated GFR < 75 mL/min per 1.73 m2 (both P < .001) for both men and women. A total of 1635 (10.9%) participants had a CHD event, 360 (2.4%) died of CHD, and 1722 (11.5%) died of any cause during follow-up. After adjustment for known risk factors, including diabetes, lipid levels, blood pressure, and use of antihypertensive medication, decreased kidney function was associated with a higher risk of recurrent CHD events and mortality from CHD and all causes. These associations were significantly stronger among participants with anemia. The adjusted relative hazards of all-cause mortality associated with moderately decreased versus normal kidney function (GFR 30-59 vs > or = 90 mL/min per 1.73 m2) were 1.7 (95% CI 1.3-2.2) in the absence of anemia and 3.5 (95% CI 2.4-5.1) in the presence of anemia (P interaction = .001). CONCLUSIONS: The combination of moderately decreased kidney function and anemia is associated with an increased risk of CHD events and mortality, emphasizing the need to identify individuals with these conditions and evaluate interventions to treat anemia and slow the progression of chronic kidney disease.
Authors:
Brad C Astor; Josef Coresh; Gerardo Heiss; Dan Pettitt; Mark J Sarnak
Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  American heart journal     Volume:  151     ISSN:  1097-6744     ISO Abbreviation:  Am. Heart J.     Publication Date:  2006 Feb 
Date Detail:
Created Date:  2006-01-30     Completed Date:  2006-02-10     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0370465     Medline TA:  Am Heart J     Country:  United States    
Other Details:
Languages:  eng     Pagination:  492-500     Citation Subset:  AIM; IM    
Affiliation:
Department of Epidemiology, The Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA. bastor@jhsph.edu
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MeSH Terms
Descriptor/Qualifier:
Anemia / complications*
Cause of Death
Coronary Disease / epidemiology,  etiology*,  mortality
Female
Follow-Up Studies
Glomerular Filtration Rate
Humans
Kidney Failure / complications*,  physiopathology
Male
Middle Aged
Regression Analysis
Risk Factors
Grant Support
ID/Acronym/Agency:
N01HC55015/HC/NHLBI NIH HHS; N01HC55016/HC/NHLBI NIH HHS; N01HC55018/HC/NHLBI NIH HHS; N01HC55019/HC/NHLBI NIH HHS; N01HC55020/HC/NHLBI NIH HHS; N01HC55021/HC/NHLBI NIH HHS; N01HC55022/HC/NHLBI NIH HHS; T32HL07024-23/HL/NHLBI NIH HHS
Comments/Corrections
Comment In:
Am Heart J. 2006 Aug;152(2):e21   [PMID:  16875895 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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