Estradiol, Serum MS
Units: pg/mL
Age Range
Newborn
Levels are markedly elevated at birth and fall rapidly during the first week to prepubertal values of <15.
Males <6 m
Levels increase to 10 - 32 between 30 and 60 days, then decline to prepubertal levels of <15 by six months.
Females <1 y
Levels increase to 5.0 - 50 between 30 and 60 days, then decline to prepubertal levels of <15 during the first year.
Prepubertal <15
Adult Males 8.0 - 35
Adult Females
Follicular 30 - 100
Luteal 70 - 300
Postmenopausal <15
Free Estradiol, Percent
Units: %
Age Range
Adult Males 1.7 - 5.4
Adult Females 1.6 - 3.6
Free Estradiol, Serum
Units: pg/mL
Age Range
Adult Males 0.2 - 1.5
Adult Females 0.6 - 7.1
Sex Hormone Binding Globulin
Units: nmol/L
Age Range
Infants (1 - 23m) 60.0 - 252.0
Prepubertal 72.0 - 220.0
Pubertal
Males 16.0 - 100.0
Females 36.0 - 125.0
Adult Males
20 - 49 y 16.5 - 55.9
>49y 19.3 - 76.4
Adult Females
20 – 49y 24.6 - 122.0
>49y 17.3 - 125.0
