Table 2. Factors associated with ovarian hyperstimulation syndrome in cycles of patients undergoing cryopreservation of all embryos.

		Mild OHSS		p*
		Yes	No
Number of aspirated oocytes	≤15	8 (42.1)	11 (57.9)	0.567
	>15	21 (50.0)	21 (50.0)
Trigger	Gonapeptyl	13 (39.4)	20 (60.6)	0.212
	Choriomon	15 (55.6)	12 (44.4)
AMH	≤3.4	5 (31.3)	11 (68.8)	0.213
	>3.4	8 (53.3)	7 (46.7)
BMI	<25	10 (45.5)	12 (54.5)	0.654
	≥25	13(52.0)	12 (48.0)
PCOS	No	21 (46.7)	24 (53.3)	0.819
	Yes	8 (50.0)	8 (50.0)
Age	>35	5 (55.6)	4 (44.4)	0.724
	≤35	24 (46.2)	28 (53.8)

OHSS: ovarian hyperstimulation syndrome; AMH: anti-Müllerian hormone; BMI: body mass index; PCOS: polycystic ovarian syndrome.

^*Significance level <0.05.