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Table 3 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 30(61.2%) 19(38.8%) 49
Incomplete CM 18(50%) 18(50%) 36
Total 48(56.5%) 37(43.5%) 85
  1. Chi-squared value = 0.65, P = 0.42; Pearson's correlation coefficient r = 0.11