Table 1.

Digital pathology criteria for quantitative analysis based on proportion and intensity scores.

Percentage of positivity	Proportion score (PS)	Intensity score (IS)
0%	0	Negative 0
1–10%	1	Low positive 1
11–50%	2	Positive 2
51–80%	3	High positive 3
81–100%	4	Substantial positive 4