Table 2.

Number of oocytes retrieved, number of zygotes (2PN), and number of cleavage-stage embryos

60 patients	IVF	ICSI	p value
Total oocytes	258	257
Oocytes per group (n)	4.3 ± 3.5	4.3 ± 3.3	0.92
2PN per group (n)	3.1 ± 2.5	2.7 ± 2.3	0.45
2PN/oocytes	72.4% ± 2.8	65.1% ± 2.9	0.38
Embryos at cleavage stage (n)	2.8 ± 2.4	2.4 ± 2.2	0.29
TQE at cleavage stage (n)	1.7 ± 2.1	1.6 ± 1.7	0.94
Embryos/oocytes (%)	65.7% ± 2.9	57.1% ± 3.2	0.17
Embryos/2PN (%)	90.4% ± 1.9	85.9% ± 2.7	0.17
TQE/oocytes (%)	41.2% ± 3.4	41% ± 3.5	0.8