Table 2 Correlation analysis between ICSI procedure timings and laboratorial and clinical outcomes in ICSI cycles.

From: A 3–4 h oocyte retrieval-ICSI interval optimizes clinical outcomes for women over 40 years

Time interval

Fertilization rate

Transferable embryo rate

Good quality embryo rate

Biochemical pregnancy rate

Clinical pregnancy rate

rho

P

rho

P

rho

P

rho

P

rho

P

T1

− 0.039

0.106

− 0.053

0.042b

− 0.014

0.559

− 0.032

0.519

− 0.075

0.126

T2

0.374

0.002b

0.052

0.0498b

0.025

0.299

− 0.072

0.143

− 0.597

0.046b

T3

0.020

0.406

− 0.002

0.948

0.019

0.425

− 0.071

0.147

− 0.313

0.020b

  1. rho: Spearman correlation coefficient.
  2. T1: HCG-OPU interval.
  3. T2: OPU-ICSI interval.
  4. T3: HCG-ICSI interval.
  5. aCorrelation is significant < 0.001 level.
  6. bCorrelation is significant < 0.05 level.
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