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Table 3 Krippendorff’s alpha values for inter-observer agreement throughout 3 rounds of revision of post-treatment FDG-PET/CT scans for Tref (defined as the area with highest FDG uptake within the residual primary tumor) and Nref (defined as the residual lymph node with highest FDG uptake)

From: Does a 6-point scale approach to post-treatment 18F-FDG PET-CT allow to improve response assessment in head and neck squamous cell carcinoma? A multicenter study

 TRefNRef
Deauville scoreHopkins scoreCuneo scoreDeauville scoreHopkins scoreCuneo score
Phase 10.290.090.310.020.070.15
Phase 20.490.370.360.470.410.58
Phase 30.480.450.340.400.380.36