Table 2.

Multivariate Cox Regression: Predictors of mortality for male patients diagnosed with breast cancer.

Parameter	Reference	Hazard Ratio	HR 95% Lower CI	HR 95% Higher CI	P Value
Patient Characteristics
Age		1.04	1.035	1.044	<0.0001
Median Income
$38,000-$47,999	< $38.000	0.893	0.792	1.007	0.0644
$48,000-$67,999	< $38.000	0.778	0.691	0.876	<0.0001
≥ $68,000	< $38.000	0.682	0.609	0.765	<0.0001
Insurance
Medicare/Medicaid	None	0.936	0.762	1.151	0.5326
Private	None	0.733	0.594	0.905	0.0038
Facility
Academic/Research Program	Community Cancer	0.791	0.692	0.904	0.0006
Comprehensive Community	Community Cancer	0.935	0.829	1.053	0.2685
Integrated Network Cancer	Community Cancer	0.919	0.785	1.076	0.2954
Charlson-Deyo Score
1	0	1.582	1.438	1.74	<0.0001
2	0	2.672	2.29	3.117	<0.0001
≥3	0	2.833	2.258	3.554	<0.0001
TUMOR CHARACTERISTICS
Tumor size		1.001	1	1.001	<0.001
Stage at Diagnosis
I	Stage 0	1.54	1.214	1.953	0.0004
II	Stage 0	2.734	2.16	3.46	<0.0001
III	Stage 0	4.481	3.479	5.773	<0.0001
IV	Stage 0	9.893	7.637	12.816	<0.0001
Tumor Grade
Moderately differentiated	Undifferentiated	0.398	0.254	0.625	<0.0001
Poorly differentiated	Undifferentiated	0.539	0.343	0.846	0.0072
Well differentiated	Undifferentiated	0.341	0.214	0.543	<0.0001
Site of Tumor: Primary	Not primary	0.816	0.75	0.888	<0.0001
Location
Left	Bilateral	1.041	0.43	2.519	0.9298
Right	Bilateral	1.183	0.489	2.865	0.7092
Hormone Receptor Status
ER positive	Negative	0.822	0.69	0.978	0.0269
PR positive	Negative	0.821	0.725	0.929	0.0018
Treatment
Surgery	None	0.415	0.363	0.474	<0.0001
Chemotherapy	None	0.772	0.706	0.845	<0.0001
Radiation	None	0.77	0.698	0.85	<0.0001
Hormonal therapy	None	0.786	0.718	0.86	<0.0001

Five and 10-year survival rates.