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Table 1 Summary of demographic characteristics and risk factors for breast cancer development

From: Evaluation of single nucleotide polymorphisms in microRNAs (hsa-miR-196a2 rs11614913 C/T) from Brazilian women with breast cancer

VARIABLE

CT group (n = 388)

BC group (n = 388)

pvalue

Age in years (mean ± SD)

55.1 ± 10.3

57.7 ± 12.6

0.008

Age at menarche in years (mean ± SD)

12.9 ± 1.6

13.0 ± 1.6

0.700

Race

   

 Caucasian

19.4%

16.2%

<0.001

 Non-Caucasian

70.6%

83.8%

 

Patients at Menopause

66.8%

63.9%

0.225

Habit of smoking

26.3%

22.4%

0.240

First-degree family history of breast cancer

16.7%

18.0%

0.635

Histological Grade

   

 1

----

24.5%

----

 2

----

47.9%

----

 3

----

27.6%

----

Clinical stages

   

 1

----

34.5%

----

 2

----

43.8%

----

 3

----

16.0%

----

 4

----

5.7%

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