title: The Tromsø Heart Study: distribution of, and determinants for, gamma-glutamyltransferase in a free-living population.
abstract: Gamma-glutamyltransferase (GGT) was measured in 1579 men, aged 20-54 years, and 1654 women, aged 20-49 years, screened for coronary risk factors. The distribution was right-skewed with medians 15 and 10 U/l for men and women, respectively. Less than 3.8% of the men and 0.8% of the women had GGT greater than or equal to 50 U/l. The low level of GGT matched well with the low mortality of cirrhosis and the modest use of alcohol in Norway. Multiple regression analysis for each sex showed a strong positive association with body mass index, use of alcohol and, unexpectedly, a negative association with coffee consumption, whereas serum triglycerides and the time since the last meal showed a weaker positive association. In women, use of oral contraceptives was positively associated with GGT.
authors.forename: E
authors.initials: E
authors.lastname: Arnesen
authors.forename: N E
authors.initials: NE
authors.lastname: Huseby
authors.forename: T
authors.initials: T
authors.lastname: Brenn
authors.forename: K
authors.initials: K
authors.lastname: Try
mesh_terms: D000328:Adult; D000375:Aging; D003327:Coronary Disease / Q000201:enzymology / Q000453:epidemiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009664:Norway; D012044:Regression Analysis; D012306:Risk; D012737:Sex Factors; D005723:gamma-Glutamyltransferase / Q000097:blood*
chemical_list: D005723:gamma-Glutamyltransferase