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Table 3 Spearman correlation of duration of halo with serum hormone level, oocyte diameter, and semen quality

From: Characteristics of the cytoplasmic halo during fertilisation correlate with the live birth rate after fresh cleaved embryo transfer on day 2 in minimal ovarian stimulation cycles: a retrospective observational study

 

TI from tHa to tHd

TI from tHa to tHc

TI from tHc to tHr

TI from tHr to tHd

Female age

0.0049 (P = 0.8832)

0.0350 (P = 0.2904)

−0.0312 (P = 0.3454)

0.0182 (P = 0.5823)

Male age

− 0.0557 (P = 0.0925)

−0.0382 (P = 0.2478)

− 0.0441 (P = 0.1829)

0.0354 (P = 0.2844)

Oestradiola

0.0212 (P = 0.5339)

0.0231 (P = 0.4947)

0.0106 (P = 0.7555)

−0.0365 (P = 0.2827)

Progesteronea

0.0177 (P = 0.6028)

0.0020 (P = 0.9526)

0.0420 (P = 0.2170)

−0.0133 (P = 0.6968)

Number of oocytes retrieved

0.0298 (P = 0.3804)

0.0364 (P = 0.2850)

0.0194 (P = 0.5682)

0.0206 (P = 0.5450)

Oocyte diameter

−0.1888 (P <  0.0001)

0.0054 (P = 0.8734)

−0.1158 (P = 0.0006)

−0.1130 (P = 0.0009)

Total sperm number

0.0109 (P = 0.7505)

0.0141 (P = 0.6797)

0.0131 (P = 0.7013)

−0.0140 (P = 0.6822)

Motile sperm number

0.0019 (P = 0.9548)

0.0148 (P = 0.6651)

0.0012 (P = 0.9711)

−0.0191 (P = 0.5780)

Motile sperm rate

0.0036 (P = 0.9174)

0.0275 (P = 0.4222)

−0.0153 (P = 0.6555)

−0.0260 (P = 0.4486)

Abnormal sperm number

0.0072 (P = 0.8340)

0.0157 (P = 0.6465)

0.0106 (P = 0.7564)

−0.0152(P = 0.6573)

Abnormal sperm rate

− 0.0292 (P = 0.3937)

−0.0411 (P = 0.2194)

0.0378 (P = 0.2692)

−0.0011 (P = 0.9745)

  1. aSerum hormone levels on day of trigger
  2. tHa Time of halo initiation, tHc Time when centripetal movement ended, tHd Time when the halo phenomenon disappeared, tHr Time when the granules started to redistribute, TI Time interval