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Table 4 Intraobserver reproducibility between the scoring point system and the subjective reading for the three different DCIS grading classifications studied

From: Histopathological grading of breast ductal carcinoma In Situ: validation of a web-based survey through intra-observer reproducibility analysis

DCIS classification systems Kappa values (κ ± EP)
Holland 0.57 ± 0.10
Van Nuys 0.67 ± 0.09
Black modificado 0.67 ± 0.09