. 2015 Oct 2;32(11):1629–1635. doi: 10.1007/s10815-015-0583-2

Table 2.

Characteristics of the ICSI cycles in cases and controls

Characteristics	Cases (SERa+)	Controls (SERa−)	p
Characteristics	n = 130	n = 130	p
Protocol of ovarian stimulation			0.30
Protocol with GnRH agonists	90 (69 %)	81 (62 %)
Protocol with GnRH antagonists	40 (31 %)	49 (38 %)
Total amount of FSH used (IU)	2908 ± 1316	2897 ± 1301	0.95
Duration of stimulation (days)	10.1 ± 2.2	9.7 ± 2.0	0.10
Total number of follicles >10 mm	10.6 ± 4.8	9.5 ± 5.8	0.12
Number of follicles >15 mm	7.3 ± 3.5	6.4 ± 3.7	0.05
Estradiol at the end of stimulation (pg/ml)	2404 ± 1296	1987 ± 1247	0.02
Oocyte retrieved	9.0 [5.0–11.0]	6.5 [3.0–10.0]	0.011
1–5	37 (29 %)	53 (41 %)	0.09
6–9	37 (29 %)	35 (27 %)
≥10	56 (43 %)	42 (32 %)
Number of SERa metaphase II oocytes	1 [1–2]	0 [0–0]	0.001
Number of oocytes discarded	447/1157 (39 %)	268/999 (27 %)	0.001
SERa	232/1157 (20 %)	0/999 (0 %)	0.001
Number of oocytes cryopreserved/retrieved	106/1157 (9 %)	131/999 (13 %)	0.003
Number of inseminated oocytes^a	4.0 [2.0–7.0]	4.0 [2.0–7.0]	0.75
Fertilization rate (%)^a	75 [50–89]	83 [60–100]	0.05
Cancelled embryo transfer^a	23 (18 %)	10 (8 %)	0.02
Absence of suitable oocytes	10 (8 %)	1 (1 %)	0.24
Absence of fertilized oocytes	6 (5 %)	5 (4 %)
Absence of viable embryos	7 (5 %)	4 (3 %)
Delayed embryo transfer (freeze-all)	14 (11 %)	14 (11 %)	1.00
Rate of good quality embryos^a
Day 2^b	32/76 (42 %)	43/91 (47 %)	0.55
Day 3	132/268 (49 %)	134/295 (45 %)	0.40
Day 5^c	42/133 (32 %)	36/115 (31 %)	1.00
Day of embryo transfer^a			0.29
Day 2–3	78 (84 %)	95 (90 %)
Day 5	15 (16 %)	11 (10 %)
Number of embryos transferred^a	1.6 ± 0.6	1.7 ± 0.6	0.65

Data is reported as mean ± SD or number (%) or median [IQR] as appropriate

^aIn the fresh cycle

^bIncludes only patients undergoing day 2 embryo transfer

^cIncludes only patients undergoing day 5 embryo transfer or day 5–6 freeze-all