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. 2019 Jul 3;10:448. doi: 10.3389/fendo.2019.00448

Table 2.

Ovarian stimulation characteristics and embryological outcomes of ovarian stimulation in the two groups.

Characteristic Late stimulation protocol group (n = 70) Short GnRH-a protocol group (n = 65) P-value
Duration of human menopausal gonadotropin (days), mean (SD) 10.93 (1.65) 8.57 (2.06) <0.001
Dose of human menopausal gonadotropin (IU), mean (SD) 2118.21 (351.19) 1652.31 (562.18) <0.001
No. of follicles with diameter >14 mm on trigger day, mean (SD) 11.71 (6.19) 7.91 (3.39) 0.184
No. of follicles with diameter >10 mm on oocyte retrieval day, mean (SD) 15.34 (8.36) 14.08 (7.29) 0.410
No. of oocytes retrieved, mean (SD) 11.13 (5.93) 10.62 (6.32) 0.521
No. of mature oocytes, mean (SD) 10.00 (5.60) 8.51 (5.03) 0.110
No. of fertilized oocytes (2PN), mean (SD) 8.04 (4.42) 7.32 (4.62) 0.250
No. of cleaved embryos, mean (SD) 7.97 (4.40) 6.95 (4.55) 0.153
No. of good-quality Day 3 embryos, mean (SD) 3.61 (2.31) 2.91 (2.29) 0.065
No. of all good-quality embryos (Day 3 embryos and blastocysts), mean (SD) 4.47 (2.55) 3.89 (2.98) 0.118
Good-quality embryo rate per oocyte retrieved, % (no. of good-quality embryos/no. of oocytes retrieved) 40.18 (313/779) 36.67 (253/690) 0.167

GnRH-a, Gonadotropin-releasing hormone agonist, 2PN, two pronuclei.