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Table 3 Inter-rater Concordance for C5b-9 Grading

From: Diffuse microvascular C5b-9 deposition is a common feature in muscle and nerve biopsies from diabetic patients

  Mean % Agreement Mean % Disagreement Krippendorff’s Alpha
Nerve C5b-9
 Overall 84% 16% 0.842
 0 95% 5%  
 1+ 70% 30%  
 2+ 92% 8%  
Muscle C5b-9
 Overall 73% 27% 0.76
 0 94% 6%  
 1+ 53% 47%  
 2+ 79% 21%