TABLE 1.

Comparison of freeze-all group and fresh embryo transfer group.

Variables	Freeze-all group	Fresh embryo transfer group	P-value
Number of cases/N	142	91	0.137
Moderate OHSS	105/142(73.9%)	59/91(64.8%)
Severe OHSS	37/142(26.1%)	32/91(35.2%)
Age	29.04 ± 3.48	30.41 ± 4.17	0.055
Total gonadotropin dose (IU)	1724.20 ± 640.32	1751.84 ± 670.16	0.260
Number of oocytes retrieved	24.38 ± 9.61	14.43 ± 5.01	0.000
BMI (kg/m2)	23.54 ± 3.80	22.57 ± 3.90	0.944

OHSS, ovarian hyperstimulation syndrome; BMI, body mass index.