Table 1.

Intensity of staining for CD8 and CD4 in pancreatic tumor tissues from patients treated with gemcitabine or not (Untreated).

Score CD8	Mean	SD	n	P-value
Untreated	1.8772	2.0120	47
Gemcitabine	1.2472	1.2605	88	0.0273
Score CD4	Mean	SD	n	P-value
Untreated	0.1689	0.2866	46
Gemcitabine	0.6748	0.7474	88	<0.001

Statistical analysis: unpaired T-test.