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. Author manuscript; available in PMC: 2010 Jan 1.
Published in final edited form as: Evol Hum Behav. 2009 Jan;30(1):1–10. doi: 10.1016/j.evolhumbehav.2008.08.006

TABLE 1.

Mean and standard deviations for hormone levels by menstrual cycle phase. Women had significantly higher progesterone levels during the luteal phase.

Follicular Luteal
Mean ± St Dev Mean ± St Dev
Estradiol (pg/mL) 123.69±60.84 154.72±76.33
Progesterone (ng/mL) * 1.08±0.44 8.68±7.96
Free Testosterone (pg/mL) 1.32±0.41 1.27±0.41
Total Testosterone (ng/mL) 0.50±0.14 0.49±0.18
*

paired samples t-test follicular versus luteal, t(11)= −3.27, p=.007