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Table 3 Results of multiple regression analysis for live birth rates

From: Effect of Day 3 cell number on the live birth rate of vitrified-warmed Day 5 single blastocyst transfer in young women

 

Odds ratio

95% CI

P-value

Maternal age (years)

0.998

0.956

1.042

0.916

Duration of infertility (years)

0.984

0.930

1.042

0.587

AMH

0.988

0.962

1.015

0.373

FSH

0.989

0.921

1.061

0.752

Frozen time

   

0.249

<6 months

1 (Reference)

   

6-12months

1.111

0.656

1.884

0.695

>12months

1.808

0.893

3.662

0.100

Fertilization method#

0.812

0.573

1.150

0.240

Endometrium thickness (mm)

1.022

0.940

1.110

0.610

Blastocyst quality a

0.517

0.359

0.746

<0.01

Day 3 cell number

   

0.005

≤ 7 cells

0.963

0.644

1.440

0.854

8–9 cells

1 (Reference)

   

10–12 cells

1.477

1.124

1.941

0.005

≥ 13 cells

2.000

1.166

3.429

0.012

  1. a Reference category: high-quality blastocysts
  2. # Reference category: IVF
  3. CI, confidence interval, IVF in vitro fertilization, ICSI intracytoplasmic sperm injection
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BMC Pregnancy and Childbirth

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