TABLE 2.

The Allred score combined intensity and percent of immunoreactive cells.

Positive cells %	Proportion score		Intensity	Intensity score
No cells are immunoreactive	0		Negative	0
≤1%	1		Weak	1
1–10%	2		Intermediate	2
11–33%	3		Strong	3
34–66% o	4
67–100%	5
Aggregation of proportion and Intensity score
0–1		Negative
2–3		Weak positive
4–6		Intermediate positive
7–8		High positive