Table 2.

Oocytes’ characteristics, embryological data, and molecular results for FoPOR and LuPOR

		FoPOR		LuPOR		p value
		Mean ± SD	Range	Mean ± SD	Range
U/S follicle count		1.77 ± 0.90	1–4	1.77 ± 0.90	1–5	NS
Oocytes retrieved		1.09 ± 0.28	1–2	1.29 ± 0.58	1–4	0.02
Maturation status of oocytes retrieved	MII	0.77 ± 0.55	0–2	1.08 ± 0.61	0–3	0.02
	MI	0.02 ± 0.14	0–1	0.08 ± 0.28	0–1	NS
	GV	0.15 ± 0.36	0–1	0.06 ± 0.24	0–1	NS
	Abnormal	0.11 ± 0.31	0–1	0.04 ± 0.20	0–1	NS
Fertilization status following insemination	2PN	0.49 ± 0.58	0–2	0.68 ± 0.62	0–2	NS
	1PN	0.13 ± 0.33	0–1	0.11 ± 0.37	0–2	NS
	3PN	0.06 ± 0.24	0–1	0.09 ± 0.28	0–1	NS
	Lysed	0.04 ± 0.20	0–1	0.13 ± 0.33	0–1	NS
Zygotes survived		0.40 ± 0.49	0–1	0.60 ± 0.61	0–2	NS
Cleavage stage embryos		0.30 ± 0.46	0–1	0.47 ± 0.58	0–2	NS
Blastocysts		0.19 ± 0.39	0–1	0.29 ± 0.55	0–2	NS
Molecular results	ALU 115 (ng/μl)	0.79 ± 0.72	0.078–2.475	1.46 ± 1.59	0.11–6.5	0.02
	ALU 247 (ng/μl)	0.15 ± 0.14	0.0353–0.53	0.55 ± 0.88	0.007–2.83	NS
	cfDNA integrity	0.24 ± 0.12	0.04–0.951	0.23 ± 0.19	0.03–0.71	NS

FoPOR, follicular phase oocyte retrieval; LuPOR, luteal phase oocyte retrieval; U/S, ultrasound; PN, pronuleus/i; MI, metaphase I; MII, metaphase II; GV, germinal vehicle; cfDNA, cell-free DNA; NS, not significant; SD, standard deviation