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. 2018 Jul 16;13(7):e0199529. doi: 10.1371/journal.pone.0199529

Table 8. Agreement and corresponding kappa coefficient between readers for EORCT and PERCIST.

Criteria EORTC PERCIST
Agreement reader 1–2 81% 86%
Simple Kappa 0.73 0.81
Weighted Kappa 0.82 0.86

EORTC = European Organization for Research and Treatment of Cancer; PERCIST = PET Response Criteria in solid Tumours