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Table 3 Local reccurence risk factors

From: Hypofractionated irradiation in elderly patients with breast cancer after breast conserving surgery and mastectomy : Analysis of 205 cases

 

Univariate analysis

Multivariate analysis

Variable

HR

p

HR

p

(95 % CI)

(95 % CI)

Mastectomy

1.61 (0.36–7.19)

0.534

-

-

RT duration >42d.

0.50 (0.06–4.15)

0.521

-

-

ANI (pN+)

6.97 (0.83–58.2)

0.073

-

-

Delay between surgery and RT >42 d.

-

0.371

-

-

SBR III

2.95 (0.65–13.40)

0.161

-

-

Triple negative

9.78 (1.90–50.29)

0.006

7.19 (1.35–38.17)

0.021

Chemotherapy

6.81 (1.30–35.76)

0.023

-

-

Age

1.03 (0.90–1.19)

0.638

-

-

NPI (overall)

1.98 (1.08–3.65)

0.028

1.94 (0.98–3.86)

0.058

NPI 3 (vs 0-1-2)

5.46 (1.21–24.64)

0.027

-

-

  1. RT radiotherapy, ANI axillary nodal involvement (pN+), SBR Scarff, Bloom and Richardson grading, NPI: Nottingham prognostic index, d days