. 2007 Jun 20;7:72. doi: 10.1186/1471-213X-7-72

Table 1.

Frequency of activation of in vitro maturing oocytes which were fertilised, during maturation, by ISCI, 1 – 4 h after GVBD, refertilized at metaphase II (ICSI + IVF) and were fixed for cytological examination 7 – 8 h after refertilisation. Control, in vitro maturing oocytes were inseminated once: only by ICSI during maturation (ICSI), only in MII stage (IVF) or were not inseminated at all (no ICSI and no IVF).

	Proportion (%) of oocytes with

	2 PB	pronuclei
ICSI + IVF	29/39 (78)^a	27/31 (87)^c
IVF	35/37 (95)^a	25/27 (93)^c
ICSI	0/27 (0)^b	3/27 (11)^d
No ICSI and no IVF	0/45 (0)^b	2/37 (5)^d

^{a, b}and ^{c, d}Values with different superscripts are significantly different (p < 0.05).