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. 2022 Jun 30;13:849794. doi: 10.3389/fendo.2022.849794

Table 6.

Baseline factors and reproductive outcomes calculated per fresh ET cycle.

Prog Prog+Met P-value
N = 138 patients N = 81 patients
Number of ET cycles,n 38 27
Age (years), mean ± SD 32.39 ± 6.37 31.70 ± 4.66 P=0.633
BMI (kg/m2), mean ± SD 26.04 ± 4.26 27.34 ± 3.93 P=0.216
PCOS, n(%) 9 (23.6%) 10(37.0%) P=0.243
Primary infertility, n(%) 28 (73.7%) 18(66.7%) P=0.540
EM thickness on trigger-day(cm), mean ± SD 0.98 ± 0.20 0.93 ± 0.21 P=0.377
Cleavage day-3 ET cycles, %(n) 78.9% (30/38) 85.2% (23/27) P=0.753
2 embryos ET cycles, %(n) 63.2% (24/38) 51.9% (14/27) P=0.362
Implantation rate, %(n) 27.4% (17/62) 29.3% (12/41) P=0.838
Biochemical pregnancy rate, %(n) 47.4% (18/38) 48.1% (13/27) P=0.951
Clinical pregnancy rate,%(n) 36.8% (14/38) 37.0% (10/27) P=0.987
Abortion rate, %(n) 35.7% (5/14) 40.0% (4/10) P=1.000
Live birth rate, %(n) 23.7% (9/38) 22.2% (6/27) P=0.890
Term delivery rate, %(n) 77.8% (7/9) 83.3% (5/6) P=1.000
Neonatal birth weight(kg), mean ± SD 3.12 ± 0.55 3.20 ± 0.79 P=0.816

ET, embryo transfer; Prog, progesterone; Met, metformin; SD, standard deviation; BMI, body mass index; PCOS, polycystic ovarian syndrome; EM,endometrial.