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Table 3 Pregnancy outcomes grouped by blastomere number

From: Increased blastomere number is associated with higher live birth rate in day 3 embryo transfer

 

 ≤ 6-cell

(n = 100)

7-cell

(n = 207)

8-cell

(n = 1522)

9-cell

(n = 187)

10-cell

(n = 91)

 ≥ 11-cell

(n = 130)

P-value

Positive hCG test, n (%)

29 (29.0)

84 (40.6)

872 (57.3)

89 (47.6)

57 (62.6)

88 (67.7)

 < 0.001

Clinical pregnancy, n (%)

24 (24.0)

67 (32.4)

743 (48.8)

72 (38.5)

49 (53.8)

83 (63.8)

 < 0.001

Miscarriage, n/N (%)

5/24 (20.8)

11/67 (16.4)

150/743 (20.2)

12/72 (16.7)

9/49 (18.4)

13/83 (15.7)

 < 0.001

Early miscarriage, n/N (%)

4/24 (16.7)

7/67 (10.4)

111/743 (14.9)

7/72 (9.7)

6/49 (12.2)

9/83 (10.8)

0.702

Late miscarriage, n/N (%)

1/24 (4.2)

4/67 (6.0)

39/743 (5.2)

5/72 (6.9)

3/49 (6.1)

4/83 (4.8)

0.971

Live birth, n (%)

19 (19.0)

56 (27.1)

592 (38.9)

60 (32.1)

40 (44.0)

70 (53.8)

 < 0.001

  1. Data are presented as number (percentage)
  2. hCG human chorionic gonadotropin