Metabolic syndrome is directly associated with gamma glutamyl transpeptidase elevation in Japanese women

Table 1 Univariate analysis of the association between GGT elevation and different variables

Variable	Category	n	GGT > 68 IU/L (%)	P
Age	≧ 50	2342	181(7.7)	< 0.0001
	< 50	1869	77(4.1)
BMI	≧ 25	1206	105(8.7)	< 0.0001
	< 25	3 005	153(5.1)
Blood pressure	High	563	45(8.0)	0.047
	Normal	3 648	213(5.8)
Hemoglobin	≧ 14	1153	110(9.5)	< 0.0001
(g/dL)	< 14	3 058	148(4.8)
Cholesterol	≧ 220	1408	122(8.7)	< 0.0001
(mg/dL)	< 220	2803	136(4.9)
Triglyceride	≧ 150	667	89(13.3)	< 0.0001
(mg/dL)	< 150	3544	169(4.8)
Uric acid	≧ 7.0	154	16(10.4)	0.025
(mg/dL)	< 7.0	4057	242(6.0)
Diabetes	Present	186	32(17.2)	< 0.0001
	Absent	4025	226(5.6)
Fatty liver	Present	391	36(9.2)	0.008
	Absent	3820	222(5.8)