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Table 1 Morphometric evaluation of the presence and extent of vacuolization in human MII oocytes subjected to slow freezing and vitrification with a closed device

From: Fine morphological assessment of quality of human mature oocytes after slow freezing or vitrification with a closed device: a comparative analysis

  Fresh controls (CO) Cryopreserved
Slow frozen/thawed (SFO) Vitrified/warmed (VO)
N° of vacuoles/100 μm2 (vacuole diameter ≥1 μm) 0.40 ± 0.12a 2.09 ± 0.85b 0.85 ± 0.37c
  1. Values are expressed as mean ± SD. Statistical analysis is calculated between columns. Differences in values were considered significant if P <0.05.
  2. a,bP <0.0001; a,cP = 0.0005; b,cP <0.0001.