Table 1: Fresh and frozen-thawed embryo transfers (n=273)
Parameter (mean ± SD)	Fresh	Frozen	P Value
Age at ET (range)	31.47 ± 6.17 (18-44)	32.71 ± 6.09 (19-45)	P<0.0001*
Number of transferred embryos	2.17 ± 0.64	2.08 ± 0.75	P=0.096*
Embryo quality (range)	1.53 ± 0.41 (1 – 2.75)	1.86 ± 0.45 (1-2.83)	P<0.0001*
Endometrial thickness (cm)	1.1±0.23	0.99±0.2	P<0.0001*
Peak blood estradiol level (pMol/L)	5703.54 ± 3264	1510.57 ± 1510	P<0.0001*
Positive pregnancy test (%)	110 (40.3%)	97 (35.5%)	0.271**
Clinical pregnancy (%)	89 (32.6%)	76 (27.8%)	0.255**
Miscarriages (%)	29 (26.4%)	27 (27.8%)	0.983**
Deliveries (% out of total cycles)	67 (24.5%)	54 (19.8%)	0.208**
Implantation rate (%)	19.17%	17.49%	0.511*
*Paired t test **McNemar test.