Table 3.

Comparison of treatment outcomes by treatment protocol used (agonist vs. antagonist) within the ideal ovum pickup (OPU)‐day and delayed OPU‐day groups

	Ideal OPU day			Delayed OPU day
	GnRH agonist (n = 423)	GnRH antagonist (n = 337)	Comparison agonist vs. antagonist p‐value (OR, 95% CI)	GnRH agonist (n = 124)	GnRH antagonist (n = 92)	Comparison agonist vs. antagonist p‐value (OR, 95% CI)
Retrieved oocytes	10.31 ± 5.67	9.33 ± 5.41	0.007	9.90 ± 5.22	9.62 ± 5.18	0.674
Fertilization rate	57.82%	58.29%	0.726	57.12%	58.91%	0.464
Embryos obtained	5.88 ± 4.22	5.57 ± 4.16	0.290	5.79 ± 3.90	5.68 ± 4.25	0.615
Embryos frozen	1.49 ± 2.13	1.27 ± 1.92	0.115	1.73 ± 2.21	1.40 ± 2.19	0.163
Pregnancy rates	35.9% (n = 152)	34.1% (n = 115)	0.604 (0.92; 0.68–1.25)	37.9% (n = 47)	27.2% (n = 25)	0.099 (0.61; 0.34–1.10)
Clinical pregnancies	28.6% (n = 121)	28.2% (n = 95)	0.900 (0.98; 0.71–1.35)	36.3% (n = 45)	20.7% (n = 19)	0.014 (0.46; 0.25–0.85)
Live‐birth rates	26% (n = 110)	26.4% (n = 89)	0.900 (1.02; 0.74–1.41)	30.6% (n = 38)	19.6% (n = 18)	0.068 (0.55; 0.29–1.05)
Miscarriage rates	27.6% (n = 42)	22.6% (n = 26)	0.289 (0.76; 0.46–1.27)	17% (n = 9)	24% (n = 7)	0.922 (1.05; 0.38–2.94)

Data are presented as mean ± SD.