Elevated Serum Gamma-Glutamyltransferase Is a Strong Marker of Insulin Resistance in Obese Children

Table 5

Multiple linear regression analysis in girls.

Dependent variable; (log HOMA-IR)	Independent variables	B	SE	𝛽	𝑃 value
𝑅^2 = 0.172	Age	−0.067	0.019	−0.210	0.001
𝑅^2adjusted = 0.163	Tanner stage	0.020	0.040	0.029	0.612
	BMI	0.067	0.009	0.381	<0.001
	GGT	0.011	0.003	0.145	0.002
	Triglycerides	0.001	0.0004	0.075	0.090
𝑅^2 = 0.168	Age	−0.062	0.020	−0.195	0.002
𝑅^2adjusted = 0.159	Tanner stage	0.019	0.040	0.027	0.641
	BMI	0.067	0.009	0.378	<0.001
	ALT	0.004	0.001	0.130	0.005
	Triglycerides	0.001	0.0004	0.088	0.044

Dependent variables is log-transformed HOMA-IR.
ALT: alanine transaminase, GGT: gamma-glutamyltransferase, HOMA-IR: homeostasis model assessment of insulin resistance.