Table 1.

Results of conventional IVF and ICSI sibling oocytes

	>4 % normal spermatozoa			≤4 % normal spermatozoa			p
	Conventional IVF (A group)		ICSI (B group)	Conventional IVF (C group)		ICSI (D group)
Number of cycles		258			183
Mean female age (years)		32.1 ± 4.1			32.7 ± 3.3		NS
Mean male age		35.3 ± 3.6			34.8 ± 4.4		NS
Sperm count(X106/ml)		49.1 ± 27.4			43.9 ± 25.6		NS
Motile spermatozoa (%)		38.6 ± 12.1			40.1 ± 14.6		NS
Mean no. oocytes/cycle		11.6 ± 4.1			12.2 ± 3.8		NS
Eggs allocated to IVF/ICSI(per patient)	6.4 ± 2.7		6.1 ± 3.2	6.5 ± 3.7		5.9 ± 3.6	NS
Eggs fertilized(%)	61		65	60		63	NS
Number of embryos	965		970	671		645	NS
Good quality embryos of fertilized(%)	59.1		61.5	58.5		62.0	NS
Mean no. of blastomeres on day 3	6.15		6.56	6.20		6.69	NS
Mean no. of embryos transferred		2.23 ± 0.43			2.31 ± 0.47		NS
Implantation rate (%)		26 %			24 %		NS
Clinical pregnancy rate		43 %			40 %		NS
Spontaneous abortion rate/pregnancy (%)		11 %			16 %		NS

NS:p > 0.05