. Author manuscript; available in PMC: 2005 Dec 15.

Published in final edited form as: J Clin Endocrinol Metab. 2004 Oct 13;90(1):211–218. doi: 10.1210/jc.2004-0834

TABLE 1.

Serum hormone concentrations in young and older men administered placebo or anastrozole orally for 5 d

	Placebo		Anastrozole
Hormone	Young (n = 15)	Older (n = 16)	Young (n = 11)	Older (n = 9)	P
FSH (IU/liter)	2.6 ± 0.4^a	6.9 ± 0.7^b	11 ± 2.5^c	15 ± 3.9^c	<0.01
Prolactin (μg/liter)	8.0 ± 1.1^a	4.5 ± 0.8^b	11 ± 2.0^a	6.8 ± 1.3^a,b	<0.05
TSH (mIU/liter)	2.3 ± 0.5	2.0 ± 0.6	1.9 ± 0.3	1.8 ± 0.5	NS

Data are (24-h pooled serum) determinations, presented as the mean ± sem (n denotes group size). Means with unique (unshared) alphabetic superscripts are significantly different within a row. P values were estimated by ANOVA. NS denotes P > 0.05.