Table 3 Morphological characteristics of the embryos evaluated on day 1 (Chi-square test)
From: Early embryo development in a sequential versus single medium: a randomized study
Characteristics day 1 | GROUP A (n = 410) | GROUP B (n = 567) | p-value |
|---|---|---|---|
Position of the pronuclei (central) | 363 (89%) | 526 (93%) | NS |
Size of the pronuclei (equal) | 363 (89%) | 498 (88%) | NS |
Presence of a cytoplasmic halo (present) | 132 (32%) | 258 (46%) | < 0,0001 |
Early cleavage (present) | 34 (20%) | 59 (20%) | NS |