Table 2.

Number of oocytes resuming development in culture and analysed 40–44 h after hCG priming and variable times in culture

	Stage of Oocytes after Culture
Time of oocyte retrieval post-hCG (time in culture) (h)	Number of oocytes (stage at initiation of culture)	GV(%)	GVBD (%)	Anaphase I (%)	MII (%)
0(40–44)	137(GV)	13(9.5)	10(7.3)	1(0.7)	98(71.5)	4(2.3)	3(2.2)
12(28–32)	61(GV)	6(9.8)	2(3.3)	1(1.6)	51(83.6)*	-	1(1.6)
24(16–20)	74(GVBD)	-	3(4.1)	-	70(94.6)**	1(1.3)	-
36(4–8)	108(MII)		-	-	-	-	-

Fisher's exact test was performed. *P < 0.05; and **P < 0.001 compared with 0 h group