Table 2.

IVF/ICSI cycle characteristics between groups

Variables	Control	PCOS	P value
Type of cycle			P < 0.001
ET	117/183(63.9%)	62/279(22.2%)
FET	66/183(36.1%)	217/279(77.8%)
Number of oocytes retrieved	9.0(4.0–13.0)	17.0(11.25–22.75)	P < 0.001
Number of normal fertilizations	5.0(3.0–9.0)	10.0(6.0–14.0)	P < 0.001
Number of available embryos	4.0(2.0–6.0)	7.0(4.0–11.0)	P < 0.001
Number of high-quality embryos	3.0(1.0–5.0)	4.0(2.00-7.75)	P < 0.001
ET
Average number of embryos transferred, n	2.0(1.0–2.0)	2.0(2.0–2.0)	0.041
with 1 embryo transferred	34/117(29.1%)	6/62(9.7%)
with 2 embryos transferred	64/117(54.7%)	46/62(74.2%)
with 3 embryos transferred	19/117(16.2%)	10/62(16.1%)
FET
Average number of embryos transferred, n	2.0(2.0–2.0)	2.0(2.0–2.0)	0.083
with 1 embryo transferred	14/66(21.2%)	31/217(14.3%)
with 2 embryos transferred	43/66(65.2%)	140/217(64.5%)
with 3 embryos transferred	9/66(13.6%)	46/217(21.2%)

Values are described as median (25th quartile,75th quartile) or number/total number (percentage). The denominator of the cycle type in each group was the total number of cycles, which included the number of ET cycles and the number of FET cycles. The denominator of ET cycle in the number of transferred embryos is both the number of patients with fresh embryo transfer in each group and the number of ET cycles. The denominator of FET cycles in the number of transplanted embryos was the total number of FET cycles in each group