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Table 4 Distribution of blastocysts with gains (+) or losses (−) on p- and q-chromosome arms, in function of day of trophectoderm biopsy. Percentages are in brackets

From: Segmental aneuploidy in human blastocysts: a qualitative and quantitative overview

Day of biopsy -p -q +p +q Total
Day 5 14 (8.8)b 22 (13.8)b 12 (7.5)b 35 (22.0)a 83 (52.2)
Day 6 18 (11.3)b 35 (22.0)a 8 (5.0)b 15 (9.4)b 76 (47.8)
Total 32 (20.1) 57 (35.8) 20 (12.6) 50 (31.4) 159
  1. a,bDifferent superscripts within a column indicate significantly statistical differences (P < 0.05)