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Significant multivariate hazard ratios for local-component of first failure

Sample

/Characteristic

Hazard ratio (95% CI)

p-value

Total sample (N = 655)

Treatment decision:

BCT

4.5

(2.3 – 8.9)

<0.0001

Mastectomy

1.0

BCT sample (N = 302)

Gene mutation

BRCA 1

1.00

BRCA 2

2.9

(1.2 – 7.1)

0.019

Adjuvant chemotherapy

Yes

1.0

5.4

(2.3 – 13.3)

0.0001

Mastectomy sample (N = 353)

Histology

Infiltrating ductal carcinoma (IDC)

1.0

IDC + lobular/Lobular carcinoma

9.9

(2.1 – 47.1)

0.0003

Medullary/Other

2.7 (0.4 – 17.3)

0.289

Pierce et al. BCRT, 2010