Table 1 IVF outcomes of gonadotropins only and letrozole- gonadotropins cycles
Poor + sub-optimal responders (N = 24) | |||
|---|---|---|---|
Letrozole (−) | Letrozole (+) | p | |
Stimulation days | 10.82 ± 3.17 | 10.50 ± 2.57 | 0.72 |
Total FSH (IU/mL) | 4744 ± 2109 | 4820 ± 1620 | 0.85 |
Max E2 (pmol/L) | 2786 ± 2118 | 1200 ± 536 | < 0.05 |
Follicles> 11 mm | 4.00 ± 2.65 | 5.96 ± 2.68 | < 0.05 |
Follicles≥16 mm | 2.61 ± 1.44 | 4.04 ± 1.83 | < 0.05 |
OPU | 3.29 ± 2.15 | 6.46 ± 3.20 | < 0.05 |
M2 oocytes | 2.47 ± 1.65 | 5.59 ± 3.20 | < 0.05 |
Fertilization rate | 0.57 ± 0.36 | 0.66 ± 0.24 | 0.37 |
2PN embryos | 1.78 ± 1.50 | 4.04 ± 2.74 | < 0.05 |
Top quality embryos | 0.91 ± 0.97 | 2.35 ± 1.66 | < 0.05 |