. 2016 Jan-Mar;17(1):17–25.

Table 4.

Multiple regression analyses of testosterone, oestradiol and oestradiol testosterone ratio in control, metabolic syndrome and type 2 diabetes mellitus groups

Groups		Dependent parameter	Predictors	Regression coefficient	P-value
Control	R²=0.626, F=41.888, p=0<0.001	Testosterone
			Oestradiol	0.780	0<0.001
			ETR	−0.832	0<0.001
	R²=0.666, F=49.949, p=0<0.001	Oestradiol
			Testosterone	0.696	0<0.001
			ETR	0.816	0<0.001
	R²=0.689, F=55.503, p=0<0.001	ETR
			Testosterone	−0.691	0<0.001
			Oestradiol	0.760	0<0.001

Metabolic syndrome	R²=0.515, F= 4.602, p=0.021	Testosterone
			ETR	−0.505	0.043
			Triglyceride	−0.129	0.601
			Hip circumference	−0.243	0.299
	R²=0.625, F=4.995, p=0.013	Oestradiol
			ETR	0.300	0.253
			Triglyceride	0.253	0.251
			Waist hip ratio	−0.262	0.242
			Diastolic blood pressure	−0.324	0.111
	R²=0.769, F=4.271, p=0.024	ETR
			Oestradiol	0.598	0.083
			Age	−0.158	0.520
			Fasting plasma glucose	−0.129	0.655
			Triglyceride	−0.161	0.560
			LDLC	0.157	0.479
			Waist hip ratio	−0.006	0.786
			Testosterone	−0.576	0.035

Type 2 diabetes mellitus	R²=0.235, F=4.749, p=0.016	Testosterone
			ETR	−0.371	0.030
			Prolactin	0.226	0.176
	R²=0.325, F=15.406, p<0.001	Oestradiol	ETR	0.570	0<0.001
	R²=0.487, F=6.420, p=0.001	ETR
			Oestradiol	0.503	0.001
			Waist height ratio	−0.035	0.938
			Waist circumference	0.053	0.902
			Waist hip ratio	0.388	0.02

ETR=Oestradiol Testosterone Ratio, LDLC=Low Density Lipoprotein Cholesterol