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Table 1 Comparison of fertilization and blastocyst formation rates between time-lapse system (Group A) and conventional incubator (Group B)

From: Selection of competent blastocysts for transfer by combining time-lapse monitoring and array CGH testing for patients undergoing preimplantation genetic screening: a prospective study with sibling oocytes

Parameters Group A Group B pvalue
Total MII oocytes 582 581  
Oocytes fertilized (2PN) 498 (85.6%) 486 (83.6%) 0.409a
Blastocysts 285 (48.9%) 278 (47.8%) 0.746a
  1. MII = metaphase II; 2PN = two pronuclei; aby Chi-square analysis.