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Serum Uric Acid and Cardiovascular Mortality: The NHANES I Epidemiologic Follow-up Study, 1971-1992

Fang, Jing, Alderman, Michael H.·2000·JAMA
DOI 10.1001/jama.283.18.2404
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Abstract

CONTEXT: Although many epidemiological studies have suggested that increased serum uric acid levels are a risk factor for cardiovascular mortality, this relationship remains uncertain. OBJECTIVE: To determine the association of serum uric acid levels with cardiovascular mortality. DESIGN AND SETTING: Cross-sectional population-based study of epidemiological follow-up data from the First National Health and Nutrition Examination Survey (NHANES I) from 1971-1975 (baseline) and data from NHANES I Epidemiologic Follow-up Study (NHEFS). PARTICIPANTS: A total of 5926 subjects who were aged 25 to 74 years and had serum uric acid level measurements at baseline. MAIN OUTCOME MEASURES: Ischemic heart disease mortality, total cardiovascular mortality, and all-cause mortality, compared by quartiles of serum uric acid level. RESULTS: In an average of 16.4 years of follow-up, 1593 deaths occurred, of which 731 (45.9%) were ascribed to cardiovascular disease. Increased serum uric acid levels had a positive relationship to cardiovascular mortality in men and women and in black and white persons. Deaths due to ischemic heart disease in both men and women increased when serum uric acid levels were in the highest quartile compared with the lowest quartile (men, >416 vs <321 micromol/L; risk ratio, 1.77 [95% confidence interval [CI], 1.08-3.98]; women, >333 vs <238 micromol/l; risk ratio, 3.00 [95% CI, 1.45-6.28]). Cox regression analysis showed that for each 59.48-micromol/L increase in uric acid level, cardiovascular mortality and ischemic heart disease mortality increased. Hazard ratios for men were 1.09 (95% CI, 1.02-1.18) and 1.17 (95% CI, 1.06-1.28), and for women were 1.26 (95% CI, 1.16-1.36) and 1.30 (95% CI, 1.17-1.45), respectively, after adjustment for age, race, body mass index, smoking status, alcohol consumption, cholesterol level, history of hypertension and diabetes, and diuretic use. Further analysis, stratifying by cardiovascular risk status, diuretic use, and menopausal status, confirmed a significant association of uric acid and cardiovascular mortality in all subgroups except among men using diuretics (n=79) and men with 1 or more cardiovascular risk factors (n=1140). CONCLUSION: Our data suggest that increased serum uric acid levels are independently and significantly associated with risk of cardiovascular mortality.

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Authors
Fang, J., & Alderman, M. H.
Venue
JAMA
Publisher
American Medical Association (AMA)
Published
2000-05-10
Volume
283
Issue
18
Pages
2404
ISSN
  • 0002-9955 (ISSN-L)
  • 0098-7484
DOI
10.1001/jama.283.18.2404
OpenAlex
W2029615800
Cited by
1,513
References
0
FWCI
18.51
Type
journal article
Language
en
Open access
closed

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