Table 2

Major histocompatibility antigen immunostaining by tumour type

Tumour type
VariableIDC without LIIDC with LIATMCMCp Value
Values are means. A,B Pairwise comparisons. Means with different letters are significantly different (p ≤ 0.05).
ATMC, atypical medullary carcinoma; IDC, invasive duct carcinoma; LI, lymphocytic infiltrate; MC, medullary carcinoma.
HLA-DR in tumour (%)0.10A0.10A0.33A2.4B0.001
HLA-DR in tumour (intensity)0.20A0.10A0.33A1.80B0.0006
β2 Microglobulin in tumour (%)0.00A1.21.332.4B0.011
β2 Microglobulin in tumour (intensity)0.00A0.80A0.83A1.80B0.0057
HLA-DR in LI1.100.671.600.35
β2 Microglobulin in LI2.201.502.800.15