Table 3.

Over all breast cancer survival in relation to clinical characteristics and stage of disease by estrogen receptor status.

	Estrogen receptor positive	Estrogen receptor negative
Characteristic	Adjusted RR (95% CI)a	Adjusted RR (95% CI)
Tumor size (mm)
<50	1.0 ref.b	1.0
≥ 50	0.7 (0.2-3.0)	5.4 (1.8-15.9)
Metastatic lymph nodes
0	1.0	1.0
≥ 1	1.6 (0.9-2.7)	4.6 (1.7-12.3)
Stage of disease
Early	1.0	1.0
Advanced	1.5 (0.9-2.6)	6.0 (2.1-16.9)

^a Relative risk of dying, 95% confidence interval, adjusted for age at diagnosis; ^b reference category.