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Table 3 Allred scoring system

From: Different approaches for interpretation and reporting of immunohistochemistry analysis results in the bone tissue – a review

Proportion score A Positive cells, % Intensity Intensity score B
0 0 None 0
1 <1 Weak 1
2 1 to 10 Intermediate 2
3 11 to 33 Strong 3
4 34 to 66 Final score range (A + B): 0-8
5 ≥67