The impact of endometrial thickness change after progesterone administration on pregnancy outcome in patients transferred with single frozen-thawed blastocyst

Table 2 Endometrial thickness on day of progesterone administration/embryo transfer according endometrial change ratio

	Endometrial change ratio	< −20%	−20%~ − 10%	−10%-~ 0	0	0~10%	10%~ 20%	> 20%
EP cycle	No.	35	139	171	542	139	424	307
	Age (year)	30.77	30.61	30.68	30.61	30.55	30.3	30.11
	Thickness on dPA (mm)	10.8	9.66	10.22	9.33	9.96	8.92	8.77
	Thickness on dET (mm)	7.96	8.25	9.36	9.33	10.69	10.01	11.36
NC cycle	No.	34	135	181	431	129	231	193
	Age (year)	31.44	32.05	31.83	31.66	31.21	31.16	31.59
	Thickness on dPA (mm)	12.76	10.88	11.07	10.31	11.04	9.23	9.19
	Thickness on dET (mm)	9.28	9.17	10.14	10.31	11.91	10.38	11.84

EP estrogen-progesterone, NC natural cycle, dPA day of progesterone administration, dET day of embryo transfer; Endometrial change ratio = (Thickness on dET- Thickness on dPA)/ Thickness on dPA*100%

ISSN: 1477-7827