Second ejaculation produces good quality sperm and blastocyst and decreases the rate of unexpected ICSI cycle: a propensity score-matched analysis

Middle East Fertility Society Journal

Table 4 Univariate and multivariate linear regression analyses of risk factors for good quality blastocyst rate

Factor	Univariate Coefficient	SE	P value	Multivariate Coefficient	SE	P value
Second ejaculation	0.173	0.054	0.014	0.168	0.055	0.020
Female age (years)	− 0.088	0.005	0.218	0.019	0.007	0.854
Male age (years)	− 0.092	0.004	0.196	-0.094	0.005	0.333
Number of oocytes retrieved	− 0.012	0.004	0.863	-0.038	0.004	0.606
Ovarian stimulation protocol)
Long-acting protocol
Short-acting protocol	0.111	0.052	0.203	0.085	0.053	0.335
Others	0.098	0.057	0.259	0.071	0.058	0.423
Primary infertility
Secondary infertility	0.152	0.043	0.031	0.124	0.047	0.108
Concentration after swim-up	− 0.004	0.002	0.958	0.772	0.025	0.473
Progressive motility after swim-up	− 0.080	0.002	0.260	-0.017	0.003	0.893
Total progressive motile sperm count after swim-up	− 0.013	0.004	0.851	-0.771	0.056	0.479