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. 2021 Oct-Dec;25(4):570–574. doi: 10.5935/1518-0557.20210024

Table 2.

Determining and comparing the consequences of pregnancy in two groups.

Variables Fresh embryo (n=313) Frozen embryo
(n=356)
p-value
Clinical pregnancy 111 (35.46%) 169 (47.47%) 0.0001***
Ongoing pregnancy 77 (24.60%) 141 (39.60%) 0.0001***
Live birth rate 49 (15.65%) 138 (38.76%) 0.0001***
Ectopic pregnancy 13 (4.15%) 5 (1.40%) 0.62
Abortion First-trimester loss 72 (23.01%) 63 (17.69%) 0.022*
Second-trimester loss 10 (11.60%) 9 (6.87%) 0.64
Twain 38 (35.51%) 25 (15.33%) 0.024*
Gestational diabetes 17 (24.64%) 31 (23.66%) 0.132
Placenta Previa 16 (5.11%) 17 (4.77%) 0.859
Preeclampsia 24 (7.66%) 26 (7.30%) 0.88
Preterm delivery 26 (8.30%) 14 (3.93%) 0.021*
Low birth weight < 2500 g 33 (10.54%) 20 (5.61%) 0.021*
Birth weight (kg) 2.8±1.03 3.2±1.8 0.001*
Perinatal mortality 15 (14.50%) 6 (6.87%) 0.0032*
    FET cases with successful early pregnancy history (n=62) FET cases with failed pregnancy history (n=294)  
Clinical pregnancy after FET cycles 38 (61.30%) 128 (43.53%) 0.011*
Live birth rate after FET cycles  24 (38.70) 104 (35.37) 0.66

Data are expressed as number (%).

Fisher's exact test and/or Chi-Square.

FET: Frozen embryo transfer

*

p<0.05 is considered as significant level.