Table 6. Main relationships of sperm parameters with ART outcomes.
Presence of correlations	ART Outcomes
Obstructive azoospermia (OAZ) vs secretory azoospermia (SAZ)	Higher CPR, LBR
	No association with:
	FR, ECR, high quality embryos, number of embryos for ET, CPR, multiple pregnancy, ectopic pregnancy, miscarriage rate, LBR, gestational age,
birth weight, congenital malformations
Low spermatozoa concentration (< 1M/ml)	Lower FR, Blastocyst rate
	No association with:
	high quality blastocysts, Embryo aneuploidy, IR, ongoing pregnancy
Low spermatozoa motility (<5%)	Lower FR
	No association with:
	blastocyst rate, embryo aneuploidy, IR, ongoing pregnancy
Normal spermatozoa motility	Higher FR, IR, CPR
Spermatozoa morphology	Negative correlation with:
	FR, embryo euploidy, IR, CPR, LBR
Complete teratozoospermia	No association with:
	BPR, CPR, miscarriage rate, LBR
Oligoasthenoteratozoospermia (OAT)	Lower FR
Severe OAT	No association with:
	Gestational age, birth weight, congenital malformations
Spermatozoa parameters	No association with: CPR, LBR
Male factor vs tubar factor	Higher FR, IR
	No association with:
	CPR, miscarriage rate
Moderate male factor	No association with:
	Gestational age, birth weight, congenital malformations
Discrepancies rule the importance of sperm selection in ICSI in overcoming male factors