Table 2 The comparison of ovarian stimulation cycle outcomes between two groups
Variable | L-carnitine group n = 47 | Placebo group n = 50 | p-value* |
|---|---|---|---|
Estradiol level on oocyte trigger day (pg/ml) | 2625.7 (1363.1) | 2536.4 (1410.1) | 0.75 |
Total no. of used gonadotropin ampules | 21.8 (7.6) | 21.2 (8.1) | 0.72 |
Stimulation duration (day) | 10.2 (2.1) | 9.9 (1.9) | 0.48 |
Antagonist duration (day) | 4.4 (1.2) | 4.1 (1.0) | 0.30 |
Total no. of observed follicles on oocyte trigger day | 16.5 (6.2) | 16.5 (5.0) | 0.96 |
No. of follicles > 18 mm on oocyte trigger day | 2.7 (1.7) | 2.1 (1.5) | 0.09 |
No. of retrieved oocytes | 12.4 (6.2) | 11.6 (4.7) | 0.49 |
No. of MII oocytes | 10.5 (4.6) | 9.9 (4.7) | 0.53 |
Oocyte maturity rate | 0.86 (0.13) | 0.83 (0.19) | 0.44 |
Oocyte recovery ratio | 0.63 (0.18) | 0.59 (0.20) | 0.23 |
Fertilization rate | 0.70 (0.23) | 0.73 (0.23) | 0.37 |
Endometrium thickness on oocyte trigger day (cm) | 10.0 (1.9) | 9.5 (1.5) | 0.10 |
All-freeze cases | 40 (85.1) | 41 (82) | 0.68 |
Total no. of obtained embryos | 9.9 (6.2) | 10.2 (6.8) | 0.77 |
No. of top-quality embryos | 6.1 (6.0) | 5.0 (4.7) | 0.31 |
No. of frozen embryos (cleavage stage) | 8.0 (6.1) | 7.9 (5.8) | 0.89 |