Faster Fertilization and Cleavage Kinetics Reflect Competence to Achieve a Live Birth: Data from Single-Embryo Transfer Cycles

Table 4

Morphokinetic parameters of all embryos produced in different number of oocytes retrieved.

Oocytes	≤7		8-14		15-21		≥22
Parameter	LB	NLB	LB	NLB	LB	NLB	LB	NLB
tPNf (hrs.)	^NS; ()	^NS; ()	^b; ()	^b; ()	^b; ()	^b; ()	^NS; ()	^NS; ()
t2 (hrs.)	^NS; ()	^NS; ()	^b; ()	^b; ()	^b; ()	^b; ()	^NS; ()	^NS; ()
t3 (hrs.)	^NS; ()	^NS; ()	^NS; ()	^NS; ()	^NS; ()	^NS; ()	^NS; ()	^NS; ()
t4 (hrs.)	^NS; ()	^NS; ()	^NS; ()	^NS; ()	^b; ()	^b; ()	^NS; ()	^NS; ()
t5 (hrs.)	^NS; ()	^NS; ()	^NS; ()	^NS; ()	^NS; ()	^NS; ()	^NS; ()	^NS; ()
t8 (hrs.)	^NS; ()	^NS; ()	^a; ()	^a; ()	^a; ()	^a; ()	^NS; ()	^NS; ()