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Table 3 Univariable and multivariable models of overall mortality in central breast cancer patients

From: Breast conserving therapy for central breast cancer in the United States

 

Univariate analysis

Multivariate analysis

 

HR (95%CI)

P-value

HR (95%CI)

P-value

Surgery type

 

 < 0.001

 

 < 0.001

 Non-BCT

Reference

   

 BCT

0.396 (0.332–0.473)

 < 0.001

0.633 (0.522–0.766)

 < 0.001

Age

 

 < 0.001

 

 < 0.001

 < 45

Reference

 

Reference

 

 45–59

1.029 (0.769–1.378)

0.846

1.188 (0.885–1.595)

0.252

 60–79

1.581 (1.201–2.080)

0.001

2.012 (1.518–2.668)

 < 0.001

Race

 

 < 0.001

 

 < 0.001

 White

Reference

 

Reference

 

 Black

1.922 (1.568–2.356)

 < 0.001

1.509 (1.222–1.864)

 < 0.001

 Others

0.630 (0.466–0.851)

0.003

0.566 (0.418–0.767)

 < 0.001

Marital

 

 < 0.001

 

 < 0.001

 Married

Reference

 

Reference

 

 Single

1.596 (1.301–1.959)

 < 0.001

1.366 (1.106–1.686)

0.004

 Divorced

1.829 (1.544–2.166)

 < 0.001

1.465 (1.231–1.742)

 < 0.001

Year of diagnosis

0.929 (0.877–0.984)

0.012

0.941 (0.888–0.997)

0.038

Grade

 

 < 0.001

 

 < 0.001

 Grade I

Reference

 

Reference

 

 Grade II

1.392 (1.081–1.793)

0.01

1.025 (0.792–1.326)

0.85

 Grade III

3.189 (2.497–4.071)

 < 0.001

1.581 (1.211–2.065)

0.001

 Grade IV

4.950 (2.004–12.224)

0.001

2.438 (0.977–6.08)

0.056

T stage

 

 < 0.001

 

 < 0.001

 T1

Reference

 

Reference

 

 T2

2.288 (1.906–2.747)

 < 0.001

1.48 (1.214–1.805)

 < 0.001

 T3

4.055 (3.208–5.126)

 < 0.001

1.947 (1.498–2.529)

 < 0.001

 T4

6.933 (5.452–8.817)

 < 0.001

2.845 (2.169–3.731)

 < 0.001

N stage

 

 < 0.001

 

 < 0.001

 N0

Reference

 

Reference

 

 N1

1.83 (1.525–2.195)

 < 0.001

1.461 (1.205–1.772)

 < 0.001

 N2

3.999 (3.214–4.976)

 < 0.001

2.482 (1.956–3.149)

 < 0.001

 N3

6.087 (4.802–7.716)

 < 0.001

3.180 (2.443–4.140)

 < 0.001

ER status

 

 < 0.001

 

0.003

 Negative

Reference

 

Reference

 

 Positive

0.362 (0.307–0.427)

 < 0.001

0.692 (0.544–0.880)

0.003

PR status

 

 < 0.001

 

 < 0.001

 Negative

Reference

 

Reference

 

 Positive

0.407 (0.350–0.475)

 < 0.001

0.666 (0.536–0.828)

 < 0.001

HER-2 status

 

0.004

 

0.039

 Negative

Reference

 

Reference

 

 Positive

1.318 (1.094–1.588)

0.004

0.813 (0.668–0.989)

0.039