Table 2.

Clinical and semen parameters in couples who did or did not achieve clinical pregnancy

	Pregnant (n = 24)	Not pregnant (n = 21)	P a
Mean male age ± SD	32.8 ± 5.7	33.1 ± 5.1	0.853
Sperm concentration mean ± SD	27.2 ± 29.6	20.4 ± 20.3	0.377
Mean female age ± SD	30.4 ± 4.1	31.6 ± 4.2	0.323
Oocytes retrieved	13.2 ± 6.2	10.4 ± 5.3	0.116
Metaphase II oocytes	10.4 ± 3.9	8.5 ± 4.3	0.130
Oocyte maturation (%)	82.9 ± 13.3	82.8 ± 12.9	0.969
Embryo transferred	2	1.8	_
Fertilization rate (%)	77.3 ± 17.3	71.6 ± 19.8	0.309
SDFI ± SD in native semen	34.3 ± 17.3	32.3 ± 21.1	0.732
SDFI ± SD in DGC semen	22.6 ± 16.8	23.8 ± 24.1	0.847

^aIndependent-samples t-test