Table 1.

Clinical features for DCIS and IDC patient samples from the Biospecimen Core Repository Facility.

Factor	DCIS (n = 53)	IDC (n = 74)
Race
Black	8%	5%
White	62%	91%
Asian/other	30%	4%
Median age	52	55
ER	4.6a 65.3b 98c	90a 99b 100c
PR	0a 27.5b 86.5c	1.5a 85b 100c
HER2
0	27%	51%
1	42%	44%
2	12%	0%
3	19%	5%
Median Ki67	6	5

Percent of total are shown with actual number of cases in parentheses.

^a25% percentile, ^bmedian, ^c75th percentile are shown for Estrogen Receptor (ER) and Progesterone Receptor (PR).