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Table 3 Inter-observer agreement indicated by the median (range) value of the kappa coefficient

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 0.48 (0.14-0.73)
Size of the pronuclei 0.29 (0.07-0.66)
Cytoplasmic halo 0.31 (0.08-0.66)
Parameters day 2  
Number of blastomeres 0.88 (0.77-0.94)
Degree of fragmentation 0.52 (0.37-0.69)
Size of blastomeres 0.54 (0.34-0.71)
Pattern of fragmentation 0.49 (0.34-0.76)
Size of fragments 0.52 (0.30-0.83)
Multinucleation 0.51 (0.13-0.71)
Orientation of the cleavage axes 0.79 (0.62-0.93)
Parameters day 3  
Number of blastomeres 0.84 (0.70-0.94)
Degree of fragmentation 0.56 (0.21-0.74)
Size of blastomeres 0.50 (0.29-0.63)
Pattern of fragmentation 0.48 (0.33-0.69)
Size of fragments 0.51 (0.36-0.69)