Table 5 Level of agreement between investigators

From: The prognostic value of Ki67 is dependent on estrogen receptor status and histological grade in premenopausal patients with node-negative breast cancer

 

Same fraction high as DG (the seventh decile)

Cutoff >20%

Investigators

Agreement (%)

Kappa

Agreement (%)

Kappa

DGa vs KLb

92

0.83

89

0.73

DGa vs MKb

93

0.85

92

0.81

KLb vs MKb

95

0.88

93

0.82

  1. aSemi-quantitative scoring.
  2. bQuantitative scoring.
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