Table 3. Clinical data on frozen-thawed blastocysts transfer cycles divided according to the type of treatment; IVF and ICSI.

SDF	IVF		ICSI
	≤30%	>30%	≤30%	>30%
Cycles included (n)	503	22	88	40
Female age(years± SD)	31.4±3.9	32.5±3.9	30.9±4.6	30.6±4.0
Male age(years± SD)	33.5±4.5	35.8±5.6	33.9±4.9	33.8±3.8
Oocytes retrieved(n± SD)	13.6±6.2	15.8±7.5	13.0±5.8	13.6±4.7
Oocytes fertilized(n ± SD)	9.5±4.3	11.6±4.2	8.9±4.3	8.6±3.3
Embryos frozen(n± SD)	3.2±2.2	3.9±3.7	3.02±1.88	2.23±1.31
Embryo transplant(n± SD)	1.8±0.5	1.9±0.5	1.7±0.5	1.8±0.4
SDF	12.4±6.4b	40.9±11.6	16.3±7.1b	43.5±12.4
Sperm concentration(×106/ml)	92.8±68.2	51.4±73.1	58.0±58.9b	19.6±37.2
Sperm motility (%)	61.0±15.7b	34.1±19.4	47.9±21.6a	27.1±18.6
Sperm morphology	8.5±3.5	7.2±4.7	6.7±4.3	4.3±3.4
Implantation rate	35.58(306/860)	30.76(12/39)	28.76(42/146)	32.31(21/65)

^a P<0.05, ^b P<0.01 for comparison with the SDF >30% group.