Table 3 Effect of DN-ICSI time on oocyte maturation and ICSI outcome

Velde et al. (1998) [21]

1–2 vs 5–6

N

N

N

ND

ND

ND

ND

Andrews et al. (2001) [24]

< 3 vs 3–5 vs 5–6

ND

N

ND

ND

ND

ND

N

Hassan et al. (2001) [2]

0 vs 4

N

N

ND

N

ND

N

ND

Falcone et al. (2008) [3]

2–4 vs 4–5 vs 5–6 vs 6–7 vs 7–8 vs 9–12

ND

Y

N

ND

ND

Y

ND

Boldi et al. (2010) [27]

0 vs 1–3

ND

N

Y

ND

Y

Y

ND

Aletebi (2011) [4]

0 vs 1 vs 2

Y

Y

ND

ND

ND

Y

ND

Patrat et al. (2012) [17]

0 vs 0.5 vs 1 vs 1.5 vs 2 vs 2.5 vs 3

N

Y

N

ND

N

N

N

Garor et al. (2015) [5]

< 1 vs > 1

ND

N

ND

ND

ND

N

ND

Bárcena et al. (2016) [19]

10.8 h by deciles

ND

N

N

ND

ND

N

N

Pujol et al. (2018) [20]

11.19 h by deciles

ND

Y

ND

ND

ND

Y

N

Zhang et al. (2020) [33]

0–1 vs 1–2 vs 2–3 vs 3–4 vs 4–5 vs > 5

ND

Y

ND

ND

Y

Y

ND

Azizi et al. (2020) [34]

< 2 vs > 2

N

N

ND

ND

ND

N

ND