Table 2.

The three meta-analyses studying the effects of testicular sperm freezing on the ICSI outcome in NOA

Meta-analysis	Revised years	Revised studies, n	ICSI cycles, n	Significant results
Nicopoullos et al., 2004 [41]	1995–2002	17	1476	No difference in 2 PN%, CPR and ongoing pregnancy rate between the two groups, but implantation rate was higher in the fresh sperm group.
Ohlander et al., 2014 [42]	Before 2012	11	573	No difference in 2 PN% and CPR between the two groups.
Yu et al., 2018 [43]	1997–2017	17	1184	No difference in 2 PN%, embryo quality, CPR, implantation rate and live-birth rate between the studied groups.