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Table 4 Logistic regression analysis to identify predictors of BRCA mutations

From: A role of BRCA1 and BRCA2germline mutations in breast cancer susceptibility within Sardinian population

Characteristics

No. of cases

BRCA+ carriers

OR (95% CI)

P

Age of Onset

    

< 45 years

139

21 (15%)

1.8 (1.05–4.28)

0.046

> 45 years

209

14 (7%)

  

Risk criteria

    

high-risk family

131

23 (18%)

3.2 (1.51–6.67)

0.002

no high risk family

217

12 (6%)

  

Ovarian cancer in family

    

presence

23

6 (26%)

3.7 (1.44–9.40)

0.006

absence

244

27 (11%)

  

Bilaterality

    

presence

36

8 (22%)

2.4 (1.05–5.39)

0.038

absence

228

25 (11%)

  

T

    

T1

151

12 (8%)

2.23 (0.57–8.82)

0.251

T2

70

10 (14%)

  

T3-4

26

4 (15%)

  

N

    

N-

126

15 (12%)

1.02 (0.39–2.67)

0.963

N+

112

13 (12%)

  

M

    

M0

201

20 (10%)

1.33 (0.15–11.7)

0.797

M1

24

3 (12%)

  

Tumor Grading

    

G1-2

171

9 (5%)

11.3 (3.38–37.6)

< 0.001

G3-4

33

12 (36%)

  

Estrogen Receptor (ER)

    

   ER-

55

16 (29%)

0.18 (0.06–0.53)

0.002

   ER+

102

10 (10%)

  

Progesteron Receptor (PR)

    

   PR-

81

21 (26%)

0.22 (0.07–0.66)

0.007

   PR+

67

6 (9%)

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