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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 (n = 682) Frozen (n = 448) p-value
Endometrial Thickness(mm)* (mm)* 11.34 ± 2.96 10.62 ± 2.46 <0.01
Peak Estradiol (pg/mL)* 1872.58 ± 1274.64 424.03 ± 224.17 <0.01
Maximum FSH (mIU/mL)* 8.22 ± 6.42 8.33 ± 9.39 0.80
BMI(kg/m2)* 27.94 ± 7.40 28.38 ± 7.41 0.33
Age* 36.50 ± 4.96 36.40 ± 5.56 0.74
# Embryos Transferred* 2.53 ± 1.01 2.28 ± 1.01 <0.01
Positive Pregnancy Test (%)** 51.33% ± 5.00% 46.77% ± 5.00% 0.11
Initial hCG (mIU/mL)* 63.69% ± 110.73% 84.11% ± 148.14 <0.01
Clinical Pregnancy (%)** 37.59% ± 4.85% 36.83% ± 4.83% 0.80
Implantation Rate (%)** 24.29% ± 3.73% 23.42% ± 3.52% 0.69
SAB (%)** 6.30% ± 2.43% 6.92% ± 2.54% 0.68
Biochemical Pregnancy (%)** 9.82% ± 2.98% 14.29% ± 3.50% 0.02
Live Birth (%)** 30.65% ± 4.61% 30.13% ± 4.59% 0.86
  1. *T-test for continuous data, **Chi squared for dichotomous data.