Table 3

Cox regression analysis for breast cancer death for patients with gene expression data (n = 69 to 77)

Univariate analysis

Multivariate analysis



RR

95 percent CI

P

RR

95 percent CI

P


Age, ≥55 years versus <55 years

1.22

0.52–2.84

0.65

Tumor type (overall effect)

0.32

Lobular (versus ductal)

0.65

0.28–1.51

0.31

Other (versus ductal)

0.34

0.05–2.53

0.29

Tumor size (overall effect)

0.014

pT2 (versus pT1)

2.63

0.88–7.86

0.085

pT3–pT4 (versus pT1)

5.27

1.61–17.2

0.006

Lymph node status (overall effect)

0.016

0.004

pN1 (versus pN0)

0.45

0.16–1.26

0.13

0.47

0.17–1.33

0.15

pN2–pN3 (versus pN0)

2.41

0.95–6.08

0.064

3.42

1.29–9.05

0.013

Othera (versus pN0)

2.12

0.75–5.98

0.16

2.70

0.93–7.78

0.067

Histological grade (overall effect)

0.68

G2 (versus G1)

2.20

0.30–16.3

0.44

G3 (versus G1)

2.07

0.25–16.8

0.50

TP53 mutation (versus wild type)

3.46

1.66–7.21

0.002

4.43

2.04–9.64

0.0004

ER positive (versus negative)

0.75

0.35–1.63

0.48

PR positive (versus negative)

0.71

0.33–1.51

0.38

Gene expression (overall effect)

0.006

Highly proliferating luminal (versus luminal A)

6.59

1.79–24.3

0.005

Normal like (versus luminal A)

2.82

0.71–11.3

0.14

Basal like (versus luminal A)

6.93

1.79–26.8

0.005

ERRB2+ (versus luminal A)

5.82

1.30–26.2

0.022


aLymph nodes not removed. 95 percent CI, 95 percent confidence interval for relative risk; ER, estrogen receptor; PR, progesterone receptor; P, P value for the hypothesis of no effect; RR, relative risk (hazard ratio).

Langerød et al. Breast Cancer Research 2007 9:R30   doi:10.1186/bcr1675

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