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Table 4 The correlation between cytoplasmic maturation (CM) in MII oocytes and zona pellucida birefringence intensity (ZP-BF)

From: Evaluation of zona pellucida birefringence intensity during in vitro maturation of oocytes from stimulated cycles

CM level Score ZP-BF Score
  Total high/positive low/negative
Complete CM 2.0 ± 6.8* 6.1 ± 3.9§ -6.2 ± 2.3
Incomplete CM 1.9 ± 5.8* 6.1 ± 4.4§ -2.8 ± 2.5
Total 1.9 ± 6.4 6.1 ± 4.0 -4.5 ± 3.2
  1. The analysis using the numerical values of the ZP scores. Data are reported as means ± SD.
  2. *P > 0.05, §P > 0.05, P = 0.003