Clinical Chemistry -- Snyder et al. 51 (10): 1830 Table 2

Table 2. Summary of studies examining hCG concentrations in postmenopausal women.

Authors n Definition of menopause hCG, IU/L
Age range, years

Mean High

Stenman et al. (4) 52 No menses for 3 years; not pregnant; FSH $≥$ 30 IU/L 1.41 4.8 50–73

O’Dell et al. (3) 14 ND¹ 1.49 6.9 ND

Vankrieken et al. (5) 56 ND 3.31 12.5 ND

Borkowski et al. (2) 20 1 year after last menses; not on hormone replacement 0.619 3.87 ND

Alfthan et al. (1) 433 >50 years of age 1.25² 6.9 50–95

This study 240 >55 years of age <2.0 13.1 56–98

¹ ND, not defined.

² Value represents the median hCG concentration.