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. 2012 Jan 21;29(4):299–304. doi: 10.1007/s10815-012-9709-y

Table 2.

Comparison of oocyte and embryo quality in pregnant and non-pregnant women

Pregnant (Mean ± SD) Non-pregnant (Mean ± SD) P value
M2 (n) 2.76 ± 2.53 2.00 ± 1.78 0.299
Late M2 (n) 3.88 ± 2.75 3.65 ± 3.82 0.789
Total oocytes (n) 8.58 ± 3.69 7.30 ± 4.84 0.343
Fertilized oocyte (n) 4.35 ± 2.14 3.48 ± 2.55 0.240
Grade 1-2 Embryo (n) 2.92 ± 2.26 2.15 ± 1.75 0.268
Grade 3 Embryo (n) 0.75 ± 0.46 1.41 ± 1.08 0.120
Transferred embryos (n) 2.76 ± 0.83 2.48 ± 1.12 0.373