Table 3 Hazard ratio of overall survival and risk of death, according to different clinical and histopathological characteristics

Age

>60 years vs ≤60 years

2.1

1.01-4.38

0.046

No. of children

0 vs 4+

0.31

0.098-0.953

0.041

1-3 vs 4+

0.30

0.18-0.86

0.02

1+ vs 0

1.81

0.63-5.2

0.27

Ethnicity

Arabic vs Jewish

1.33

0.40-4.42

0.64

Family history

Positive vs negative for breast cancer

0.96

0.42-2.17

0.92

Lymph nodes

Positive vs negative

2.45

1.07-5.60

0.033

Tumor size

>2 cm vs ≤2 cm

1.46

0.68-3.10

0.33

Surgery

Mastectomy vs lumpectomy

1.45

0.63-3.33

0.38

Distant metastasis

Yes vs no

7.06

3.27-15.28

<0.001

Characteristic

p value

Age

>60 years vs ≤60 years

0.015

No. of children

0 vs 1+

0.034