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Table 2 IVF cycle characteristics for pregnant versus non-pregnant patients

From: Lessons from elective in vitro fertilization (IVF) in, principally, non-infertile women

 

Pregnant

Not pregnant

Percent of total cycles

36.7

63.3

Age (years)

36.5 ± 5.3

37.0 ± 4.6

Embryos biopsied (n)

7.7 ± 3.7

7.0 ± 3.8

 ≤ 6 n (%)

20 (50.0)

35 (50.7)

 ≥ 7 n (%)

20 (50.0)

34 (49.3)

Euploid embryos (n) 1

4.5 ± 2.4

3.3 ± 2.2

 ≤ 3 n (%)

16 (40.0)

42 (60.9)

  % pregnant

27.6

 

 ≥ 4 n (%)

24 (60.0)

27 (39.1)

  % pregnant

47.1

 

Embryos transferred (n)

2.1 ± 0.7

1.6 ± 0.8

≥ 2 euploid embryos available 2

  

 n (%) pregnant ET x 1

4/35 (11.4)

 

 n (%) pregnant ET x 2

36/74 (48.6)

 
  1. Pregnant and non-pregnant women neither differed in age nor in number of embryo biopsied. 1Logistic regression for pregnancy, adjusted for age and depending on whether ≥4 or ≤3 euploid embryo were present in cycle, adjusted by number of embryos biopsied and transferred, demonstrated over 3 fold pregnancy odds in women who had ≥ 4 euploid embryos (95% CI 1.224 to 9.201, Exp 3.356, P = 0.019). 2Logistic regression analysis, adjusted for age cycle number, euploid embryos and depending on whether ≤1 or ≥2 euploid embryo were transferred demonstrated 6.553-times the odds of pregnancy with transfer of ≥2 embryos (95 CI 1.979 to 21.695, Exp 6,553, P = 0.002).
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Reproductive Biology and Endocrinology

ISSN: 1477-7827

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