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Table 2 Multivariable logistic regression analysis with SSR in singletons

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

Variables

OR

95% CI

Infertility type

  

 Primary

1.000

–

 Secondary

1.164

1.009–1.342

Infertility factor

  

 Female

1.000

–

 Male

1.031

0.800–1.330

 Both male and female

0.896

0.739–1.087

Paternal age group (year)

  

 ≤30

1.000

–

 31–33

1.143

0.951–1.372

 34–36

1.048

0.865–1.271

 ≥37

1.261

1.038–1.534

Fertilization method

  

 IVF

1.000

–

 ICSI

0.996

0.772–1.285

 FET

0.738

0.597–0.912

Embryo transfer stage

  

 Cleavage stage

1.000

–

 Blastocyst

1.339

1.030–1.742

Days of Gn use (day)

0.961

0.932–0.990

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

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