Table 1.

Geometric mean levels (10-90 percentile) of serum pituitary hormones at baseline and during repeated visits by menopausal status

HormonePremenopausal women, n = 30
Postmenopausal women, n = 35
Baseline visitYear 2 visitYear 3 visitBaseline visitYear 2 visit
FSH, mIU/mL5.8 (2.8-12.4)5.9 (2.7-11.6)6.3 (2.2-14.8)64.2 (30.0-111.4)64.7 (28.9-110.9)
LH, mIU/mL5.0 (2.0-14.9)4.7 (1.8-11.5)4.6 (1.4-10.0)29.7 (17.9-44.9)27.1 (16.6-46.0)
TSH, mIU/mL2.2 (1.2-3.8)2.0 (0.8-4.1)2.2 (1.0-4.9)2.0 (0.8-3.4)1.9 (0.9-3.8)
PRL, ng/mL14.4 (6.0-23.1)13.6 (7.0-25.6)13.8 (7.7-25.0)10.7 (5.6-18.7)9.1 (4.5-16.8)
GH, ng/mL0.9 (0.2-5.9)1.1 (0.3-6.1)0.9 (0.2-4.5)0.5 (0.1-3.5)0.4 (0.1-1.8)
ACTH, pg/mL10.4 (<3-39.2)10.3 (3.7-35.2)8.4 (<3-34.9)11.2 (5.1-29.6)11.2 (4.3-8.2)
  • Abbreviations: PRL, prolactin; GH, growth hormone.