DNA methylation and hormone receptor status in breast cancer

Clinical Epigenetics

Table 1 Patient and tumor characteristics by hormone receptor status in the BCCC dataset

	Total (N = 75)		ER/PR positive
	N	%	%	P value (chi-square test)
Age at diagnosis				0.88
<50	20	27	75
50–59	20	27	70
60–79	35	47	69
Race/ethnicity				0.44
nH Black	31	41	65
nH White	21	28	81
Hispanic	23	31	70
Pathological stage				0.39
1	23	31	83
2	33	44	67
3	18	24	61
4	1	1	100
Histologic grade				0.10
Low	5	7	100
Moderate	31	42	77
High	38	51	61
1st degree familial breast cancer				0.25
None	50	68	68
Moderate	18	24	67
Strong (<50/multiple affected)	6	8	100

ISSN: 1868-7083