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

Table 4

Multiple linear regression analysis in boys.

Dependent variable; (log HOMA-IR)	Independent variables	B	SE	𝛽	𝑃 value
𝑅^2 = 0.128	Age	−0.021	0.016	−0.067	0.186
𝑅^2adjusted = 0.122	Tanner stage	0.015	0.026	0.028	0.566
	BMI	0.045	0.007	0.253	<0.001
	GGT	0.003	0.001	0.068	0.053
	Triglycerides	0.002	0.0003	0.188	<0.001
𝑅^2 = 0.128	Age	−0.019	0.016	−0.061	0.229
𝑅^2adjusted = 0.123	Tanner stage	0.016	0.026	0.030	0.539
	BMI	0.045	0.007	0.249	<0.001
	ALT	0.001	0.0004	0.074	0.034
	Triglycerides	0.002	0.0003	0.191	<0.001

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