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Table 2 Median (range) value of the kappa coefficient as measurement for the inter-observer agreement

From: Intra- and interobserver analysis in the morphological assessment of early stage embryos during an IVF procedure: a multicentre study

Characteristics Median kappa coefficient (range)
Characteristics day 1  
Position of the pronuclei 0.66 (0.37-0.86)
Size of the pronuclei 0.16 (0.09-0.27)
Cytoplasmic halo -0.16 (-0.32-0.05)
Characteristics day 2  
Number of blastomeres 0.73 (0.71-0.83)
Degree of fragmentation 0.46 (0.20-0.61)
Size of blastomeres 0.32 (0.11-0.50)
Characteristics day 3  
Number of blastomeres 0.63 (0.57-0.74)
Degree of fragmentation 0.49 (0.20-0.57)
Size of blastomeres 0.39 (0.13-0.57)
Decision 0.71 (0.67-0.86)