Table 2.

Results of different ET methods

	>4 % normal spermatozoa				≤4 % normal spermatozoa				p
	Conventional IVF	ICSI	Mix	Total	Conventional IVF	ICSI	Mix	Total
	E group	F group	G group	H group	I group	J group	K group	L group
No. of embryo transfers	122	54	48	214	69	44	48	161
Embryos transferred/cycle	2.1	2.3	2.4	2.2	2.4	2.1	2.3	2.3	NS
Pregnancy per transfer(%)	42	45	44	43	40	39	43	41	NS
Implantation rate (%)	25	28	27	26	23	22	26	24	NS

The mean number of embryos transferred per cycle, the percentage of pregnancy per transfer and the implantation rate were comparable in the eight groups(group E~group L), and the differences did not attain statistical significance