Parameter

P

Women’s age (years)

NS

IVF vs ICSI

NS

Embryo age at cryopreservation (48 vs 72 hours)

NS

Number of transferred embryos

<0.021

Maximal grading at thawing

<0.027

Total Blastomere survival rate

NS

Embryo survival rate

<0.098

FET protocol (natural cycle vs endometrial preparation)

NS

Synchronized embryos at cryopreservation

NS

Unsynchronized embryos at cryopreservation

NS

Mixed embryos at cryopreservation

NS