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Table 1 Patient baseline characteristics by cycle type (fresh versus frozen)

From: The presence of multiple gestational sacs confers a higher live birth rate in women with infertility who achieve a positive pregnancy test after fresh and frozen embryo transfer: a retrospective local cohort

Characteristic

Fresh (nā€‰=ā€‰682)

Frozen (nā€‰=ā€‰448)

p-value

Endometrial Thickness(mm)* (mm)*

11.34ā€‰Ā±ā€‰2.96

10.62ā€‰Ā±ā€‰2.46

<0.01

Peak Estradiol (pg/mL)*

1872.58ā€‰Ā±ā€‰1274.64

424.03ā€‰Ā±ā€‰224.17

<0.01

Maximum FSH (mIU/mL)*

8.22ā€‰Ā±ā€‰6.42

8.33ā€‰Ā±ā€‰9.39

0.80

BMI(kg/m2)*

27.94ā€‰Ā±ā€‰7.40

28.38ā€‰Ā±ā€‰7.41

0.33

Age*

36.50ā€‰Ā±ā€‰4.96

36.40ā€‰Ā±ā€‰5.56

0.74

# Embryos Transferred*

2.53ā€‰Ā±ā€‰1.01

2.28ā€‰Ā±ā€‰1.01

<0.01

Positive Pregnancy Test (%)**

51.33%ā€‰Ā±ā€‰5.00%

46.77%ā€‰Ā±ā€‰5.00%

0.11

Initial hCG (mIU/mL)*

63.69%ā€‰Ā±ā€‰110.73%

84.11%ā€‰Ā±ā€‰148.14

<0.01

Clinical Pregnancy (%)**

37.59%ā€‰Ā±ā€‰4.85%

36.83%ā€‰Ā±ā€‰4.83%

0.80

Implantation Rate (%)**

24.29%ā€‰Ā±ā€‰3.73%

23.42%ā€‰Ā±ā€‰3.52%

0.69

SAB (%)**

6.30%ā€‰Ā±ā€‰2.43%

6.92%ā€‰Ā±ā€‰2.54%

0.68

Biochemical Pregnancy (%)**

9.82%ā€‰Ā±ā€‰2.98%

14.29%ā€‰Ā±ā€‰3.50%

0.02

Live Birth (%)**

30.65%ā€‰Ā±ā€‰4.61%

30.13%ā€‰Ā±ā€‰4.59%

0.86

  1. *T-test for continuous data, **Chi squared for dichotomous data.