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Table 3 Association of BRCA1/BRCA2 carriers with tumor site and triple negative status in patients divided according to the age at diagnosis

From: Novel and recurrent BRCA1/BRCA2 germline mutations in patients with breast/ovarian cancer: a series from the south of Tunisia

Age

Tumor Site

Non carriers (%)

BRCA1 carriers (%)

BRCA2 carriers (%)

p

≤ 30

BC

7 (77.8)

1 (11.1)

1 (11.1)

–

OC

0 (0)

0 (0)

0 (0)

 

31–40

BC

44 (86.3)

4(7.8)

3 (5.9)

0.001

OC

1 (25)

3 (75)

0 (0)

 

41–50

BC

22 (91.7)

0 (0)

2 (8.3)

0.044

OC

7 (77.8)

2 (22.2)

0 (0)

 

≥ 51

BC

23 (88.5)

0 (0)

3 (11.5)

0.24

OC

11 (100)

0 (0)

0 (0)

 

Age

TN

Non carriers (%)

BRCA1 carriers (%)

BRCA2 carriers (%)

p

≤ 30

No

4 (100)

0 (0)

0 (0)

0.358

Yes

3 (60)

1 (20)

1 (20)

 

31–40

No

34 (89.5)

1 (2.6)

3 (7.9)

0.041

Yes

10 (76.9)

3 (23.1)

0 (0)

 

41–50

No

17 (89.5)

0 (0)

2 (10.5)

0.449

Yes

5 (100)

0(0)

0 (0)

 

≥ 51

No

20(87)

0 (0)

3 (13)

0.506

Yes

3 (100)

0 (0)

0 (0)

 
  1. BC: Breast cancer; OC: ovarian cancer (with or without breast cancer); Yes: TN (ER−/PR−/Her2−); No: others (ER−/PR−/Her2+, ER+/PR+/Her2+, ER+/PR+/Her2−)