Table 1.

Comparison of the 2PN zygote, cleavage (A and B grades), and Blastocysts formation rates of 491 oocytes with the use of ZP- and HA-bound sperm, and conventional methods

Variable	Control n=165	ZP n=163	HA n=163	95% CI Conventional vs. ZP	95% CI Conventional vs. HA	95% CI ZP vs. HA
2PN zygote	137±1.4	141±0.9	143±1.2	0.6741 to 0.4341 P=0.8	-0.7341 to 0.3741 P=0.7	-0.6141 to 0.4941 P=0.1
Cleavage (A and B grades)	95±1.3	123±0.8	130±0.9	-1.065 to -0.09453 P=0.01*	-1.225 to -0.2545 P=0.001**	-0.6455 to 0.3255 P=0.7
Blastocysts	23±0.7	39±0.8	45±0.5	-0.6195 to -0.02051 P=0.03*	-0.7395 to -0.1405 P=0.002**	-0.4195 to 0.1795 P=0.6

All data are presented as mean ± SD; Asterisks are indicated significant Differences (*P<0.05, **P<0.01, one-way ANOVA with Tukey test).