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Longitudinal change in serum gamma-glutamyltransferase and cardiovascular disease mortality: a prospective population-based study in 76,113 Austrian adults.


ABSTRACT: OBJECTIVE:The purpose of this study was to investigate the association of longitudinal change in serum gamma-glutamyltransferase (GGT) with mortality from cardiovascular disease (CVD). METHODS AND RESULTS:A population-based cohort of 76,113 Austrian men and women with 455,331 serial GGT measurements was prospectively followed-up for a median of 10.2 years after assessment of longitudinal GGT change during an average period of 6.9 years. Cox proportional hazards regression with time-varying covariates was used to evaluate GGT change as an independent predictor for CVD death. Independently of baseline GGT and other classical CVD risk factors, a pronounced increase in GGT (7-year change >9.2 U/L) was significantly associated with increased total CVD mortality in men (P=0.005); the adjusted hazard ratio (95% confidence interval) in comparison to stable GGT (7-year change -0.7 to 1.3 U/L) was 1.40 (1.09 to 1.81). Similarly, total CVD risk was elevated for increasing GGT in women, although effects were less pronounced and statistically significant only in subanalyses regarding coronary heart disease. Age of participants significantly modified the relation between GGT change and CVD mortality, with markedly stronger associations to be observable for younger individuals. CONCLUSIONS:Our study is the first to demonstrate that a longitudinal increase in GGT, independently of baseline GGT and even within its normal range, significantly increases risk of fatal CVD.

SUBMITTER: Strasak AM 

PROVIDER: S-EPMC2643843 | biostudies-literature | 2008 Oct

REPOSITORIES: biostudies-literature

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Longitudinal change in serum gamma-glutamyltransferase and cardiovascular disease mortality: a prospective population-based study in 76,113 Austrian adults.

Strasak Alexander M AM   Kelleher Cecily C CC   Klenk Jochen J   Brant Larry J LJ   Ruttmann Elfriede E   Rapp Kilian K   Concin Hans H   Diem Günter G   Pfeiffer Karl P KP   Ulmer Hanno H  

Arteriosclerosis, thrombosis, and vascular biology 20080710 10


<h4>Objective</h4>The purpose of this study was to investigate the association of longitudinal change in serum gamma-glutamyltransferase (GGT) with mortality from cardiovascular disease (CVD).<h4>Methods and results</h4>A population-based cohort of 76,113 Austrian men and women with 455,331 serial GGT measurements was prospectively followed-up for a median of 10.2 years after assessment of longitudinal GGT change during an average period of 6.9 years. Cox proportional hazards regression with tim  ...[more]

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