FOLR1 and carcinosarcoma: In the case of endometrioid subtype, the comparison revealed a trend towards lower odds which did not reach statistical significance (log(OR) = −0.81; p = 0.065), while the histotypes carcinosarcoma, clear cell and low-grade serous EOC did not significantly differ in FRα-high odds compared to high-grade serous EOC (p > 0.05).