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Serum uric acid for short-term prediction of cardiovascular disease incidence in the Gubbio population Study.

Abstract：

OBJECTIVE:The Gubbio Study is an Italian population study measuring risk factors for and incidence of major cardiovascular diseases. This analysis investigates the association of serum uric acid with the incidence of coronary and cardiovascular events. METHODS:A population sample of 2469 men and women aged 35-74 years, free from major cardiovascular diseases and in whom serum uric acid was measured in 1983 along with other standard risk factors, were followed up for 6 years and the incidence of coronary heart disease (CHD) and all cardiovascular atherosclerotic (CVD) events, both fatal and non-fatal, was computed. Proportional hazards models were used for the prediction of these events. RESULTS:In six years 61 CHD hard criteria, 109 CHD any criterion and 149 CVD events were recorded. Age-adjusted rates per 1000 of the 3 event categories were computed in sex-specific quintiles (Q) of serum uric acid with 428 +/- 76 (Q5) and 198 +/- 42 (Q1) micromol/l, respectively. Although higher rates were seen in Q5 as compared to Q1 for all three first event categories considered (relative risks 6.2, 3.6 and 3.7, respectively), a statistically significant trend was seen only for CVD all criteria (t = 3.63, p < 0.036). These trends were borderline significant for CHD any criterion (t = 2.92, p < 0.06) and not significant for CHD hard criteria (t = 2.23, p < 0.11). In multivariate models, adjusted for 8 other risk factors, serum uric acid showed a statistically significant contribution to predict CVD incidence [relative risk (RR) for 92 micromol/l difference of 1.24 with 95% confidence intervals (CI) 1.05-1.45], whereas the statistical contribution to predict CHD any criterion (RR = 1.19 with CI 0.98-1.45) and CHD hard criteria (RR = 1.20 with CI 0.93-1.55) was not significant. Diuretic treatment and blood urea, as further confounders, were positively and significantly related to event incidence (RR ranging from 1.21 to 2.00) but serum uric acid maintained its independent and statistically significant role in the prediction of CVD events (RR = 1.18 with CI 1.00-1.39). Presence of specific treatments to lower serum uric acid levels (in 1.13% of the population), tested as final confounders, was not statistically contributory. CONCLUSIONS:Increased serum uric acid levels are independently and significantly associated with risk of CVD events in the 6-year follow-up of the Gubbio Study. Longer follow-up is needed before the contributory role of serum uric acid can be properly assessed to explain CHD incidence.

journal_name

Acta Cardiol

journal_title

Acta cardiologica

authors

Puddu PE,Lanti M,Menotti A,Mancini M,Zanchetti A,Cirillo M,Angeletti M,Panarelli W,Gubbio Study Research Group.

doi

10.2143/AC.56.4.2005651

subject

Has Abstract

pub_date

2001-08-01 00:00:00

pages

243-51

issue

eissn

0001-5385

issn

1784-973X

journal_volume

pub_type

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Serum uric acid for short-term prediction of cardiovascular disease incidence in the Gubbio population Study.