Table 4 Multivariate linear regression analysis of the blastocyst formation rate

Infertility

  Secondary

0.027 ± 0.012

0.055

2.330

0.020

  Primary

REF

Dose/Duration of Gn

-0.0004 ± 0.0001

-0.095

-4.038

< 0.001

Number of oocytes retrieved

0.006 ± 0.002

0.071

3.029

0.002

Fertilisation

  ICSI

-0.027 ± 0.014

-0.045

-1.914

0.056

  IVF

REF

DFP

  Group A

REF

  Group B

-0.035 ± 0.016

-0.061

-2.160

0.031

  Group C

-0.039 ± 0.021

-0.052

-1.833

0.067