GATA3 and breast cancer: Specifically, GATA3 positivity was associated with a better prognosis in BC patients older than 50 years, and with an Elston and Ellis grade of 1–2 (HR 0.69, p = 0.003), pT1 (HR 0.67, p = 0.001), pN0 (HR 0.65, p = 0.003), and stage I–II (HR 0.65, p < 0.0001).