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Table 2 Polarized light microscopy (PLM) assessment of the oocytes derived from the largest follicle of each patient

From: Oocyte polarized light microscopy, assay of specific follicular fluid metabolites, and gene expression in cumulus cells as different approaches to predict fertilization efficiency after ICSI

  F group
(n = 29)
nF group
(n = 17)
p
IL-ZP retardance (nm) 1.8 ± 0.6 1.7 ± 0.6 ns
IL-ZP area (μm2) 2560 ± 647 2386 ± 462 ns
IL-ZP thickness (μm) 4.4 ± 1.6 4.0 ± 1.1 ns
Total-ZP thickness (μm) 17.8 ± 1.8 18.2 ± 2.5 ns
MS retardance (nm) 1.4 ± 0.5 1.4 ± 0.2 ns
MS area (μm2) 85.6 ± 20.3 102.8 ± 16.5 p < 0.01
MS major axis (μm) 11.6 ± 2.1 13.4 ± 2.3 p < 0.05
  1. F group = patients whose oocyte was fertilized, nF group = patients whose oocyte was not. IL-ZP = inner layer of the zona pellucida. MS = meiotic spindle. Values are expressed as mean ± standard deviation