Table 3: Statistical correlations in different tumour compartments (TAS, T, and IF) within breast cancer molecular subtypes.

Molecular subtype of breast cancerNo. of casesPair of compartmentsCorrelation (r)Statistical significance
2-tailed P

Luminal A25TAS-T 0.426 P = 0.034 P < 0.05
TAS-IF0.284P = 0.169 P > 0.05
T-IF 0.499 P = 0.011 P < 0.05

Luminal B9TAS-T0.315P = 0.410 P > 0.05
TAS-IF0.602P = 0.086 P > 0.05
T-IF 0.862 P = 0.003 P < 0.01

Basal-like5TAS-T 0.966 P = 0.007 P < 0.01
TAS-IF0.425P = 0.475 P > 0.05
T-IF0.640P = 0.244 P > 0.05

HER211TAS-T0.373P = 0.258 P > 0.05
TAS-IF0.263P = 0.434 P > 0.05
T-IF 0.912 P = 0.000 P < 0.001