Skip to main content

Table 3 Pregnancy outcomes by single blastocyst and 2+ cleavage

From: Single blastocyst transfer yields similar pregnancy rates compared with multiple cleavage embryo transfer, with reduced twin rate, in patients with low number of fertilized oocytes

Pregnancy outcomes

Single blastocyst (n = 1138)

2+ cleavage (n = 3732)

OR (95% CI)

P value

Clinical pregnancy rate

489 (43%)

1627 (44%)

0.94 (0.81, 1.09)a

0.43

Live birth rate

398 (35%)

1378 (37%)

0.88 (0.76, 1.03)a

0.12

Miscarriage rate

84 (17%)

235 (14%)

1.35 (0.99, 1.83)a

0.06

Number of embryos transferred, median [Q1, Q3]

2 [2, 2]

 

Total number of cycles with heart beats

456

1,522

 

 Singleton rate

443 (97%)

1119 (74%)

12.27 (6.99, 21.55)b

< 0.0001

 Twins rate

13 (3%)

383 (25%)

0.09 (0.05, 0.15)b

< 0.0001

 Triplets

0

19

 

 Quadruplets

0

1

 
  1. Q1 25th percentile, Q3 75th percentile
  2. aAdjusted for age, race, BMI, smoker, parity, gravida, infertility diagnoses, and assisted hatching
  3. bUnadjusted