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Details of endometrial biopsies used, including the day of the menstrual cycle and mean values for circulating estrogen and progesterone
| Variable | Day of cycle of biopsy | Mean E2 (pmol/l) | Mean P4 (nmol/l) |
|---|---|---|---|
| Proliferative | 3–17 | 339.8 | 3.2 |
| Early secretory | 10–21 | 462.6 | 54.6 |
| Mid secretory | 20–26 | 527.3 | 73.3 |
| Late secretory | 22–29 | 276.3 | 45.3 |
| Menstrual | 1–6 | 196.5 | 2.9 |
E2, estrogen; P4, progesterone.
