The effect of mildly stimulated cycle versus artificial cycle on pregnancy outcomes in overweight/obese women with PCOS prior to frozen embryo transfer: a retrospective cohort study

Table 2 FET cycle characteristics between groups

	Total	mSTC	AC	P value
Number of patients	680	173	507
Number of embryos transferred				0.457
Single	94(13.8%)	21(12.1%)	73(14.4%)
Double	586(86.2%)	152(87.9%)	434(85.6%)
Embryo grades				0.382
Level 1	446(35.2%)	108(33.2%)	338(36.0%)
Level 2	820(64.8%)	217(66.8%)	603(64.0%)
Embryos stages				0.402
Day 3 embryos	597(87.8%)	155(89.6%)	442(87.2%)
Day 5 embryos	83(12.2%)	18(10.4%)	65(12.8%)
Endometrium thickness prior to FET (mm)	9.84 ± 1.71	10.10 ± 1.94	9.75 ± 1.61	0.039

Data are presented as mean ± SD for continuous variables and n (%) for dichotomous variables. All P values were assessed with the use of student’s t-test or χ²

ISSN: 1471-2393