The association of higher levels of within-normal-limits liver enzymes and the prevalence of the metabolic syndrome

Table 4 Logistic regression analysis for the presence of MetS in relation GGT quintiles*.

Men (N = 6561)	1^st Quintile	2^nd Quintile	3^rd Quintile	4^th Quintile	5^th Quintile
	GGT<9	9≤GGT<12	12≤GGT<16	16≤GGT<21	21≤GGT≤42
N =	1318	1206	1443	1202	1392
Crude OR	1.0	2.1 (1.6 - 2.8)	2.3 (1.8 - 3.0)	3.6 (2.7 - 4.7)	3.9 (3.0 - 5.1)
Age adjusted OR	1.0	2.2 (1.6 - 2.9)	2.4 (1.8 - 3.2)	3.7 (2.8 - 4.8)	4.1 (3.1 - 5.3)
Multi-adjusted^† OR	1.0	2.2 (1.6 - 2.9)	2.4 (1.8 - 3.2)	3.7 (2.8 - 4.8)	4.1 (3.1 - 5.3)
Multi-adjusted + waist & BMI OR	1.0	2.3 (1.7 - 3.0)	2.5 (1.9 - 3.3)	4.0 (3.0 - 5.3)	4.5 (3.4 - 5.9)
Women (N = 3389)	1 ^st Quintile	2 ^nd Quintile	3 ^rd Quintile	4 ^th Quintile	5 ^th Quintile
	GGT<8	8≤GGT<11	11≤GGT<15	15≤GGT<19	19≤GGT≤28
N =	586	670	846	620	667
Crude OR	1.0	1.6 (1.1 - 2.3)	2.2 (1.6 - 3.0)	3.2 (2.3 - 4.4)	3.4 (2.5 - 4.7)
Age adjusted OR	1.0	1.5 (1.1 - 2.2)	2.3 (1.7 - 3.3)	3.3 (2.4 - 4.7)	3.9 (2.8 - 5.4)
Multi-adjusted^† OR	1.0	1.5 (1.1 - 2.2)	2.4 (1.7 - 3.3)	3.3 (2.4 - 4.7)	3.9 (2.8 - 5.5)
Multi-adjusted + waist & BMI OR	1.0	1.4 (1.0 - 2.1)	2.4 (1.7 - 3.4)	3.4 (2.4 - 4.7)	4.1 (2.9 - 5.8)

* The lower quintile was arbitrarily defined as 1.0.
† Multi-adjusted means adjustments were made for age, exercise intensity, use of aspirin and statins, smoking status and alcohol consumption.
List of abbreviations: GGT, gamma-glutamyl transferase; MetS, metabolic syndrome; OR, odds ratio.

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