Table 4.

Correlations between estradiol and anthropological and gonadal axis parameters

Variables	Age (year)	BMI (kg m−2)	TT (ng ml−1)	CFT (ng ml−1)	BAT (ng ml−1)	PRL (ng ml−1)	LH (mIU ml−1)	FSH (mIU ml−1)
E2 (ng ml−1)	r=0.101, P=0.221	r=0.202, P=0.017*	r=0.241, P=0.003*	r=0.389, P=0.000#	r=0.416, P=0.000#	r=0.157, P=0.068	r=0.248, P=0.003*	r=0.117, P=0.300

^*P<0.05; ^#P<0.01. BMI: body mass index; TT: total testosterone; CFT: calculated free testosterone; BAT: bioactive testosterone; E2: estradiol; PRL: prolactin; LH: luteinizing hormone; FSH: follicle-stimulating hormone