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Table 2 Clinical Outcomes

From: Predictive value of the number of frozen blastocysts in live birth rates of the transferred fresh embryos

 

Number of frozen blastocysts

0

1–2

 ≥ 3

P

Live birth rate (%)

36.0 (562/1561)

46.1 (1357/2943)

47.6 a (1987/4172)

 < 0.001

Adjusted b live birth rate

0.35

0.47

0.50

 < 0.001C

Clinical pregnancy rate (%)

47.0 (733/1561)

59.2 (1743/2943)

65.1 (2716/4172)

 < 0.001

Adjusted b clinical pregnancy rate

0.47

0.59

0.66

 < 0.001C

Implantation rate (%)

35.5 (854/2409)

47.6 (2110/4430)

56.0 (3131/5588)

 < 0.001

Miscarriage rate (%)

23.3 a (171/733)

22.1 (386/1743)

26.8 (729/2716)

0.001

  1. aP > .05 vs group 2 (number of frozen blastocysts = 1–2)
  2. b Values are marginal means (95%CIs) adjusted for female age, years of infertility, FSH, AFC, BMI, type of infertility, the number of embryos transferred, endometrial thickness, and type of treatment (IVF or ICSI)
  3. c Values are obtained from x2 test (based on the marginal mean of estimation)