Table 6.

The significantly differential percentage of promoter methylation in tumor suppressor genes between serous type ovarian cancer tissues and non-serous type ovarian cancer tissues

Gene name	Number of methylation/all (%)		p-value
	Group 1	Group 2
RASSF1A*	10/39 (26%)	34/71 (48%)	0.023
RASSF1A**	11/39 (28%)	36/71 (51%)	0.022
CDKN2A	4/39 (10%)	1/71 (1%)	0.033
BRCA1	11/39 (28%)	0/71 (0%)	<0.001
SCGB3A1	3/39 (8%)	21/71 (30%)	0.008
ID4	1/39 (3%)	11/71 (15%)	0.038
CACNA1A	3/39 (8%)	24/71 (34%)	0.002

Note: *group 1: serous type epithelial ovarian cancer tissues; group 2: non-serous type epithelial ovarian cancer tissues;

^*probe 1: RASSF1A(328);

^**probe 2: RASSF1A: RASSF1A(382).