The Impact of Race in Male Breast Cancer Treatment and Outcome in the United States: A Population-Based Analysis of 4,279 Patients

Table 5

Cox regression multivariate analysis.

Prognostic factor	Hazard ratio	95% confidence interval	value
Race^a	1.386	1.185–1.621	< 0.001
Age at diagnosis^b	1.049	1.044–1.054	< 0.001
Year of diagnosis^b	0.983	0.971–0.994	= 0.004
Lymph node dissection^c	0.581	0.503–0.671	< 0.001
T stage^d	1.452	1.315–1.603	< 0.001
Stage of disease^e	1.203	1.114–1.300	< 0.001
Grade^f	1.237	1.134–1.349	< 0.001

Black versus non-Black.
^bContinuous.
^cYes versus no.
^dMetastatic disease versus 4 versus 3 versus 2 versus 1 versus in situ.
^eIV versus III versus II versus I versus 0.
^f3+ unknown versus 2 versus 1.