Table 4 Morphology characteristics of transferred blastocysts by live birth status

EH stage

0.337

3

181 (22.9)

16 (15.4)

4

362 (45.7)

51 (49.0)

5

247 (31.2)

37 (35.6)

6

2 (0.2)

0 (0.0)

ICM grade

0.037

A

58 (7.3)^{a, b}

13 (12.5)^{a, b}

B

636 (80.3) ^{a, c}

85 (81.7) ^{a, c}

C

98 (12.4) ^{b, c}

6 (5.8) ^{b, c}

TE grade

< 0.001

A

52 (6.5)^{a, b}

23 (22.1) ^{a, b}

B

578 (73.0) ^{a, c}

74 (71.2) ^{a, c}

C

162 (20.5)^{b, c}

7 (6.7)^{b, c}