Table 5 PGT-A results stratified by ICM grade and day of biopsy (Day 5 vs. Day 6).

From: Independent inner cell mass and trophectoderm morphology as non-invasive predictors of embryo euploidy in IVF

ICM Grade

Day

Euploid No. and %

Aneuploid No. and %

Other* No. and %

Total

P-value**

Good

Day 5

324

60.6%

160

29.9%

51

9.5%

535

 < 0.001

 

Day 6

54

50.9%

32

30.2%

20

18.9%

106

 < 0.001

Fair

Day 5

138

47.4%

122

41.9%

31

10.7%

291

 < 0.001

 

Day 6

92

36.2%

127

50%

35

13.8%

254

 < 0.001

Poor

Day 5

9

34.6%

16

61.5%

1

3.8%

26

0.002

 

Day 6

15

18.8%

51

63.8%

14

17.5%

80

 < 0.001

  1. *These include mosaic, inconclusive, and low DNA PGT-A results.
  2. **P-value results for the association between ICM grade and ploidy status (euploid vs. aneuploid).