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EJNMMI Research

Table 2 Interpretation of kappa values and intraclass correlation coefficients (ICC) based on Landis and Koch [24]

From: Inter-observer agreement improves with PERCIST 1.0 as opposed to qualitative evaluation in non-small cell lung cancer patients evaluated with F-18-FDG PET/CT early in the course of chemo-radiotherapy

Kappa value/ICC

Degree of agreement

0.00–0.20

Poor agreement

0.21–0.40

Fair agreement

0.41–0.60

Moderate agreement

0.61–0.80

Strong agreement

0.81–1.00

Near complete agreement

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