The fraction of tumors with GATA3 high-level amplification was higher in pT2-4 carcinomas (5.4%) than in (all) pTa tumors (pTa 2.4%; p < 0.0001 for pTa vs. pT2-4; Table 2) but it was lower than in pTa G3 tumors (pTa G3 12.1%; p < 0.0001 for pTa G3 vs. pT2-4). Here, GATA3 is linked to carcinoma.