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