TABLE 2 - General characteristics and outcomes of the cycles in which the transfer were ultrasonographic-guided (CONTROL) or based on previous uterine length measurement.
Groups	CONTROL group	ULM group	P
N	150	50
Female age	35.1 ± 4.66	35.0 ± 4.09	0.879
Retrieved oocytes	11.8 ± 8.9	10.9 ± 8.3	0.292
MII retrieved oocytes	8.44 ± 6.60	9.12 ± 7.32	0.274
Embryos transferred	2.57 ± 0.93	2.50 ± 0.84	0.425
Endometrium thickness	12.0 ± 2.27	12.4 ± 1.95	0.131
Easiness of transfer	95.3%	96.0%	1.000
Implantation Rate	11.9%	30.7%	< 0,001
Pregnancy Rate	26.0%	54.0%	< 0,001