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Table 2 Median (range) of kappa coefficient as measurement of intra-observer agreement in embryo evaluation

From: Intra- and inter-observer analysis in the morphological assessment of early-stage embryos

Parameters

Median kappa coefficient (range)

Parameters day 1

 

Position of the pronuclei

0.60 (0.48-0.64)

Size of the pronuclei

0.54 (0.29-1)

Cytoplasmic halo

0.57 (0.33-0.77)

Parameters day 2

 

Number of blastomeres

0.88 (0.82-0.94)

Degree of fragmentation

0.64 (0.59-0.68)

Size of blastomeres

0.71 (0.69-0.74)

Pattern of fragmentation

0.68 (0.46-0.86)

Size of fragments

0.60 (0.36-0.65)

Multinucleation

0.51 (0.32-0.79)

Orientation of the cleavage axes

0.85 (0.71-0.93)

Parameters day 3

 

Number of blastomeres

0.87 (0.73-0.97)

Degree of fragmentation

0.67 (0.63-0.84)

Size of blastomeres

0.63 (0.45-0.70)

Pattern of fragmentation

0.61 (0.53-0.70)

Size of fragments

0.57 (0.46-0.70)