Table 2.

Biochemical, clinical and on-going pregnancy rates per cycle in total study group and unexplained, male subfertile subgroups

	Swim-Up	Gradient	P value
Study Group
Biochemical pregnancy rate per cycle (%)	22/175 (%12.6)	34/163 (%20.9)	0.049*
Clinical pregnancy rate per cycle (%)	17/175 (% 9.7)	31/163 (%19.0)	0.019*
On going pregnancy rate per cycle (%)	12/175 (% 6.9)	26/163 (%16.0)	0.010*
Unexplained Infertility
Biochemical pregnancy rate per cycle (%)	19/156 (%12.2)	32/134 (%23.9)	0.013*
Clinical pregnancy rate per cycle (%)	16/156 (%10.3)	32/134(%21.6)	0.009*
On going pregnancy rate per cycle (%)	11/156 (% 7.1)	32/134 (%17.9)	0.006*
Male Subfertility
Biochemical pregnancy rate per cycle (%)	3/19 (%15.8	2/29 (%6.9)	0.37
Clinical pregnancy rate per cycle (%)	1/19 (% 5.3)	2/29 (%6.9)	0.37
On going pregnancy rate per cycle (%)	1/19 (% 5.3)	2/29 (%6.9)	0.37

Shows significant difference