. Author manuscript; available in PMC: 2015 Dec 1.

Published in final edited form as: Cancer Epidemiol Biomarkers Prev. 2008 Dec;17(12):3319–3324. doi: 10.1158/1055-9965.EPI-08-0544

Table 1. Univariate analysis of ER, PR, and HER-2 status of patients with ductal, lobular, and mixed ductal/lobular histologic types.

	Ductal, n (%)	Lobular, n (%)	Mixed lobular/ductal, n (%)	Other,^* n (%)	Total population	P
ER+	307 (70.9)	48 (87.3)	68 (81.0)	34 (70.8)	457/620	0.0153
ER−	126 (29.1)	7 (12.7)	16 (19.0)	14 (29.2)	163/620
PR+	283 (65.5)	46 (86.8)	63 (75.9)	28 (59.6)	420/620^†	0.0015
PR−	149 (34.5)	7 (13.2)	20 (24.1)	19 (40.4)	195/620
HER+	67 (22.6)	5 (16.7)	19 (36.5)	12 (35.3)	103/620^†	0.0511
HER−	229 (77.4)	25 (83.3)	33 (63.5)	22 (64.7)	309/620
Triple-negative	100 (23.1)	3 (5.5)	6 (7.1)	8 (16.7)	117/620	<0.0001
Non-triple-negative	333 (76.9)	52 (94.5)	78 (92.9)	40 (83.3)	503/620

Mucinous, tubular, and medullary carcinomas.

^†

Some tissues were not tested for all characteristics.