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 1 Baseline characteristics of ovarian stimulation and IVF cycles

	Total	mSTC	AC	P value
Number of patients	680	173	507
Age of woman (years)	30.10 ± 3.22	30.31 ± 3.49	30.20 ± 3.12	0.346
Infertility duration(years)	3.25 ± 2.03	3.05 ± 1.97	3.32 ± 2.05	0.122
BMI (kg/m²)	27.77 ± 4.33	27.40 ± 4.19	27.90 ± 4.37	0.122
Baseline hormonal profile
FSH (mIU/mL)	6.40 ± 1.56	6.39 ± 1.67	6.40 ± 1.52	0.982
LH (mIU/mL)	8.32 ± 4.60	8.58 ± 5.01	8.22 ± 4.45	0.374
Type of infertility				0.514
Primary infertility	380(55.9%)	93(53.8%)	287(56.6%)
Secondary infertility	300(54.1%)	80(46.2%)	220(43.4%)
Laboratory insemination				0.162
IVF	573(85.7%)	140(80.9%)	433(87.4%)
ICSI	107(14.3%)	33(19.1%)	74(12.6%)
Ovulation induction regimen				0.406
Agonist regimen	496(72.9%)	122(70.5%)	374(73.8%)
Antagonist regimen	184(27.1%)	51(29.5%)	133(26.2%)
Gn days (days)	11.36 ± 2.96	11.58 ± 3.06	11.29 ± 2.92	0.262
Total Gn (mIU/mL)	2287.28 ± 1001.74	2388.54 ± 1031.18	2252.73 ± 990.16	0.124
Number of eggs obtained	22.26 ± 9.48	24.40 ± 4.19	22.13 ± 9.614	0.189
Total number of frozen embryos	6.94 ± 2.36	7.18 ± 2.43	6.85 ± 2.33	0.107

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
BMI Body Mass Index, FSH Follicle Stimulating Hormone, Gn Gonadotropin, ICSI Intracytoplasmic Sperm Injection, IVF In Vitro Fertilization, LH Luteinizing Hormone

ISSN: 1471-2393