Table 2.

Late-stage patient cohort

Parameter	Category	Frequency	Total
Gender	Male	40
	Female	35	75
Nodal stage	0	22
	1a	6	75
	1b	15
	2a	16
	2b	16
T stage	1	1
	2	1	75
	3	33
	4	40
Differentiation	Well	5
	Moderate	54	75
	Poor	15
	Undocumented	1
HLA-DR expression (mean  % positivity)	Normal epithelium	4%	71*
	Carcinoma epithelium	9.3%	70*
	Normal stroma	60.7%	72*
	Carcinoma stroma	36%	72*

*Denotes missing values due to tissue degradation or missing tissue microarray cores