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Nonesterified fatty acids and risk of sudden cardiac death in older adults.

TitleNonesterified fatty acids and risk of sudden cardiac death in older adults.
Publication TypeJournal Article
Year of Publication2012
AuthorsDjoussé, L, Biggs, ML, Ix, JH, Kizer, JR, Lemaitre, RN, Sotoodehnia, N, Zieman, SJ, Mozaffarian, D, Tracy, RP, Mukamal, KJ, Siscovick, DS
JournalCirc Arrhythm Electrophysiol
Volume5
Issue2
Pagination273-8
Date Published2012 Apr
ISSN1941-3084
KeywordsAged, Aged, 80 and over, Biomarkers, Death, Sudden, Cardiac, Fatty Acids, Nonesterified, Female, Follow-Up Studies, Humans, Incidence, Male, Proportional Hazards Models, Prospective Studies, Retrospective Studies, Risk Factors
Abstract<p><b>BACKGROUND: </b>Although nonesterified fatty acids (NEFA) have been positively associated with coronary heart disease risk factors, limited and inconsistent data are available on the relation between NEFA and sudden cardiac death.</p><p><b>METHODS AND RESULTS: </b>Using a prospective design, we studied 4657 older men and women (mean age, 75 years) from the Cardiovascular Health Study (1992-2006) to evaluate the association between plasma NEFA and the risk of sudden cardiac death in older adults. Plasma concentrations of NEFA were measured using established enzymatic methods, and sudden death was adjudicated using medical records, death certificates, proxy interview, and autopsy reports. We used Cox proportional hazard models to estimate multivariable-adjusted relative risks. During a median follow-up of 10.0 years, 221 new cases of sudden cardiac death occurred. In a multivariable model adjusting for age, sex, race, clinic site, alcohol intake, smoking, prevalent coronary heart disease and heart failure, and self-reported health status, relative risks (95% confidence interval) for sudden cardiac death were 1.0 (ref), 1.15 (0.81-1.64), 1.06 (0.72-1.55), and 0.91 (0.60-1.38) across consecutive quartiles of NEFA concentration. In secondary analyses restricted to the first 5 years of follow-up, we also did not observe a statistically significant association between plasma NEFA and sudden cardiac death.</p><p><b>CONCLUSIONS: </b>Our data do not provide evidence for an association between plasma NEFA measured late in life and the risk of sudden cardiac death in older adults.</p>
DOI10.1161/CIRCEP.111.967661
Alternate JournalCirc Arrhythm Electrophysiol
PubMed ID22281952
PubMed Central IDPMC3329563
Grant ListN01 HC085086 / HC / NHLBI NIH HHS / United States
N01-HC-85085 / HC / NHLBI NIH HHS / United States
R01 AG015928 / AG / NIA NIH HHS / United States
U01 HL080295 / HL / NHLBI NIH HHS / United States
N01-HC-85081 / HC / NHLBI NIH HHS / United States
N01 HC015103 / HC / NHLBI NIH HHS / United States
R56 AG020098 / AG / NIA NIH HHS / United States
R01HL094555 / HL / NHLBI NIH HHS / United States
AG-20098 / AG / NIA NIH HHS / United States
N01HC55222 / HL / NHLBI NIH HHS / United States
R01 HL094555 / HL / NHLBI NIH HHS / United States
N01HC85086 / HL / NHLBI NIH HHS / United States
AG-027058 / AG / NIA NIH HHS / United States
N01-HC-85082 / HC / NHLBI NIH HHS / United States
N01 HC-55222 / HC / NHLBI NIH HHS / United States
R01 HL094555-03 / HL / NHLBI NIH HHS / United States
N01-HC-85083 / HC / NHLBI NIH HHS / United States
N01-HC-75150 / HC / NHLBI NIH HHS / United States
N01-HC-85080 / HC / NHLBI NIH HHS / United States
R01 HL080295 / HL / NHLBI NIH HHS / United States
R01 AG020098 / AG / NIA NIH HHS / United States
N01HC75150 / HL / NHLBI NIH HHS / United States
N01-HC-85079 / HC / NHLBI NIH HHS / United States
HL080295 / HL / NHLBI NIH HHS / United States
N01-HC-85239 / HC / NHLBI NIH HHS / United States
AG-023629 / AG / NIA NIH HHS / United States
R01 HL080295-05 / HL / NHLBI NIH HHS / United States
N01HC85079 / HL / NHLBI NIH HHS / United States
R01 AG023629 / AG / NIA NIH HHS / United States
R01 AG027058 / AG / NIA NIH HHS / United States
N01 HC045133 / HC / NHLBI NIH HHS / United States
N01 HC035129 / HC / NHLBI NIH HHS / United States
R56 AG023629 / AG / NIA NIH HHS / United States
N01-HC-85084 / HC / NHLBI NIH HHS / United States