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Table 3 Multivariable logistic regression analysis from twin gestation

From: Assisted reproductive technology induces different secondary sex ratio: parental and embryonic impacts

Variables

OR

95% CI

Infertility factor

  

 Female

1.000

 

 Male

2.208

1.120–4.348

 Both male and female

0.989

0.612–1.597

Maternal age group (year)

  

 ≤35

1.000

 

 >35

0.539

0.293–0.990

Paternal age group (year)

  

 ≤30

1.000

 

 31–33

1.135

0.706–1.821

 34–37

1.235

0.764–1.996

 ≥38

1.330

0.762–2.326

Fertilization method

  

 IVF

1.000

 

 ICSI

0.331

0.158–0.690

 FET

0.938

0.595–1.479

Dosage of Gn (× 103 IU/L)

1.250

1.010–1.548

Days of Gn use (day)

0.906

0.838–0.980

  1. Male births selected as the reference category
  2. IVF In vitro fertilization, ICSI Intracytoplasmic sperm injection, FET Frozen embryo transfer, Gn Gonadotropin
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Reproductive Health

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