The Effect of Freezing Twice during Assisted Reproductive Technology on Perinatal and Neonatal Outcomes

Table 4

Congenital anomalies after FET with cryopreserved oocytes and fresh oocytes.

Variables	OC group	Control group
All deliveries	100	395
Major malformations	6 (6)	14 (3.5)
Congenital malformations of the nervous system (Q00-07)	1	0
Congenital malformations of eye, ear, face and neck (Q10-18)	1	0
Congenital malformations of the circulatory system (Q20-28)	0	6
Congenital malformations of the respiratory system (Q30-34)	1	2
Cleft lip and cleft palate (Q35-37)	0	1
Other congenital malformations of the digestive system (Q38-45)	0	1
Congenital malformations of genital organs (Q50-56)	0	1
Congenital malformations and deformations of the musculoskeletal system (Q65-79)	3	2
Chromosomal abnormalities, not elsewhere classified (Q90-99)	0	1

Values are numbers (percentages). The number of all deliveries includes the number of live newborns plus stillborn babies.