Journal
JOURNAL OF EPIDEMIOLOGY
Volume 24, Issue 1, Pages 7-14Publisher
JAPAN EPIDEMIOLOGICAL ASSOC
DOI: 10.2188/jea.JE20130032
Keywords
gamma-glutamyltransferase; arterial stiffness; brachial-ankle pulse wave velocity
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Funding
- Institute of Wonkwang Medical Science
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Background: The results of epidemiologic studies of the association between serum gamma-glutamyltransferase (GGT) and brachial-ankle pulse wave velocity (baPWV) have been inconsistent. We examined the association between serum GGT and arterial stiffness in a general population of Korean adults. Methods: The study population consisted of 6314 community-dwelling Koreans who participated in the baseline survey of the Namwon Study. We analyzed sex-specific association between serum GGT and arterial stiffness, as measured by baPWV. Results: There was a significant progressive increase in age-adjusted mean baPWV across quartiles of GGT in both sexes. In fully adjusted analysis, as compared with the lowest quartile, the odds ratios (95% CI) for high baPWV (ie, sex-specific fifth quintile) were 1.51 (1.03-2.23), 1.82 (1.22-2.72), and 2.80 (1.79-4.40) among men (P-trend <0.001), and 1.11 (0.81-1.52), 1.29 (0.94-1.76), and 1.47 (1.04-2.08) among women (P-trend <0.001), for the second, third, and fourth quartiles of GGT, respectively. Conclusions: This population-based study examined the dose-response relationship between GGT and arterial stiffness as measured by baPWV in both sexes. The association between GGT and arterial stiffness was stronger among men. Additional longitudinal studies are needed to examine the relationship between GGT and arterial stiffness and clarify the mechanism underlying the association.
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