Research Article

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

Table 3

The pregnancy outcomes of two groups.

VariablesOC group
Control group
value

Gestational diabetes mellitus, number/total number (%)4 (4.2)20 (5.4)0.798
Hypertension during pregnancy, number/total number (%)8 (8.3)21 (5.7)0.34
Cesarean section, cesarean, number/total number (%)71 (74)264 (71.5)0.639
Stillbirth (%)3 (3.1)1 (0.3)0.029a
Live birth (%)0.334
Singleton livebirth89 (92.7)342 (92.7)
Twin livebirth4 (4.2)26 (7.0)
Babies born
Gestational age (weeks)39.286 (38.357-40.286)39.143 (38-40)0.173
Gestational age category, number/total number (%)0.179
<37 weeks7 (7.2)52 (13.2)
37-41 weeks84 (86.6)309 (78.4)
≥41 weeks6 (6.2)33 (8.4)
Birth weight (kg)3.4 (3.1-3.7)3.4 (3.0-3.7)0.512
Macrosomia5 (5.2)36 (9.1)0.204
LBW13 (13.4)54 (13.7)0.938
Females46 (47.4)206 (52.3)0.391

Values are the median (interquartile range) or number (percentage). aStatistically significant. BMI: body mass index; FSH: follicle stimulating hormone; LH: luteinizing hormone; PCOS: polycystic ovary syndrome; FET: frozen embryo transfer; HCG: human chorionic gonadotropin.