Table 1.

Comparison of the average number of PGCCs in human ovarian tumors.

	Group	n	Number of PGCCs	χ 2	P value
Primary ovarian tumor	I	21	35.75 ± 23.54	49.55	0.000
Corresponding metastatic tumor	II	21	57.21 ± 24.88
Primary ovarian tumor without metastasis	III	26	18.12 ± 8.70
Borderline serous cystadenoma	IV	12	5.80 ± 1.89