Table 1.

Patient demographics, cause of infertility, use of IVF/ICSI and type of protocol used in the treatment of patients scheduled for OPU in the ideal day (day 0) or with one day of delay (day +1), combined into the group denoted ideal day, or in a day that was judged as 2, 3 or 4 days delayed, denoted delayed OPU‐day (day +2, +3 or +4)

	Treatment protocols		p‐Value ideal vs. delayed OPU day
	Ideal OPU day	Delayed OPU day
Patients	760 (77.9%)	216 (22.1%)
Age	33.1 ± 3.8	33.6 ± 3.9	0.06
BMI	23.8 ± 4.1	24.2 ± 3.9	0.20
Infertility diagnosis
Unexplained	260 (34.2%)	84 (38.8%)	0.20
Male factor	143 (18.8%)	39 (18.1%)	0.80
Anovulation	83 (10.9%)	18 (8.3%)	0.27
Tubal factor	52 (6.8%)	14 (6.5%)	0.85
Endometriosis	33 (4.3%)	9 (4.2%)	0.91
Other	189 (24.9%)	52 (24.1%)	0.81
IVF/ICSI	494/266 (65%/35%)	142/74 (65.7%/34.3%)	0.84
GnRH agonist/GnRH antagonist protocol	423/337 (55.7%/44.3%)	124/92 (57.4%/42.6%)	0.64

Data are presented as n (%) or mean ± SD.

BMI, body mass index; OPU, ovum pickup.