Table 1.
Baseline characteristics of study cohort (n = 2939)
| Parameter | Peak E2 > 3069.2 pg/mL (n = 147) |
Peak E2 ≤ 3069.2 pg/mL (n = 2792) |
P |
|---|---|---|---|
| Age (years) | 34.8 (±4.6) | 35.2 (±4.5) | .29 |
| Parity | .27 (±.58) | .33 (±.59) | .22 |
| BMI (kg/m2) | 22.5 (±4.5) | 22.9 (±6.4) | .45 |
| Infertility diagnoses | .99 | ||
| Ovulatory | 30 (20.4) | 579 (20.7) | |
| Tubal | 10 (6.8) | 169 (6.1) | |
| Endometriosis | 5 (3.4) | 119 (4.3) | |
| Male factor | 36 (24.5) | 628 (22.5) | |
| Idiopathic | 11 (7.5) | 227 (8.1) | |
| Other | 55 (37.4) | 1070 (38.3) | |
| Previous IVF attempts | 1.58 (±1.60) | 1.63 (±1.93) | .77 |
| Basal FSH (mIU/mL) | 4.23 (±2.03) | 4.46 (±2.74) | .19 |
| COH Protocol | .65 | ||
| Follicular phase GnRH-ant | 46 (31.3) | 947 (33.9) | |
| Follicular phase GnRH-a | 44 (30) | 929 (33.3) | |
| Luteal phase GnRH-a | 29 (19.7) | 453 (16.2) | |
| Other | 28 (19) | 463 (16.6) | |
| Peak endometrial stripe (mm) | 11.5 (±2.6) | 11.4 (±6.8) | .86 |
| Total stimulation days | 9.6 (±1.7) | 9.6 (±1.9) | 1 |
| Total gonadotropins administered (IU) | 1923.1 (±1007.1) | 2977.2 (±1772.1) | <.0001 |
| Total number of oocytes | 17.3 (±6.9) | 11.4 (±5.7) | <.0001 |
| Embryos transferred | 2.6 (±1.3) | 2.7 (±1.1) | .29 |
| Blastocyst transfer | 46 (31.3) | 391 (14) | .003 |
Data are presented as mean ± standard deviation and n (%)
BMI Body Mass Index
IVF In Vitro Fertilization
FSH Follicle Stimulating Hormone
COH Controlled Ovarian Hyperstimulation
GnRH-ant Gonadotropin Releasing Hormone-Antagonist
GnRH-a Gonadotropin Releasing Hormone-Agonist
Bolded numbers indicate significance