Number of Polyploid Giant Cancer Cells and Expression of EZH2 Are Associated with VM Formation and Tumor Grade in Human Ovarian Tumor

Table 4

Comparison of the EZH2 expression levels in cancer-associated fibroblasts.

	Group	𝑛	Staining index of EZH2	𝜒^2	𝑃 value
Primary ovarian tumor	I	21	3.14±2.10	26.945	0.000
Corresponding metastatic tumor	II	21	5.86±2.37
Primary ovarian tumor without metastasis	III	26	2.81±1.23
Borderline serous cystadenoma	IV	12	2.75±1.60