Table 6 Distribution of cohen’s weighted kappa values, indicating the level of agreement among raters.

From: Concordance of HER2-low scoring in breast carcinomas among pathologists

Cohen’s Kappa

Inter-rater (N = 1830)

Consensus-Rater (N = 61)

All cases

HER2-low

All cases

HER2-low

Almost perfect

1560 (85.25%)

162 (8.85%)

60 (98.36%)

8 (13.11%)

Substantial

216 (11.8%)

604 (33.01%)

1 (1.64%)

22 (36.07%)

Moderate

0 (0.0%)

711 (38.85%)

0 (0.0%)

26 (42.62%)

Fair

0 (0.0%)

276 (15.08%)

0 (0.0%)

5 (8.20%)

Slight

0 (0.0%)

35 (1.91%)

0 (0.0%)

0 (0.0%)

No agreement

-

-

-

-