Skip to main content
. Author manuscript; available in PMC: 2013 Apr 24.
Published in final edited form as: Clin Chem. 2009 Mar 26;55(6):1061–1066. doi: 10.1373/clinchem.2007.100008

Table 1.

Lack of specificity of steroid hormone immunoassays; data from CAP PT Program Y-A Survey 2008.

Analyte Lowest
mean (L)		 Highest
mean (H)		 Factor H/L
Testosterone, ng/dL 52.6 148.7 2.8
Estradiol, pg/mL 25.4 229.0 9.0
Progesterone, ng/mL 0.83 2.72 3.3