Skip to main content

Table 4 Availability of germline DNA specimens and epidemiological data

From: Analysis of cancer risk and BRCA1 and BRCA2mutation prevalence in the kConFab familial breast cancer resource

 

Family ascertainment categorya

Review pending

Total

 

1

1B

2

3

4

5

0

  

Number of families

292

113

217

2

25

8

140

25

822

Number of samples

         

   From females (affected)

2,118 (735)

577 (215)

1,239 (385)

19 (6)

45 (21)

22 (12)

621 (179)

124 (44)

4,765 (1597)

   From males (affected)

1,179 (7)

274 (6)

759 (5)

5 (0)

28 (0)

14 (0)

322 (4)

43 (0)

2,624 (22)

   Totalb

3,297

851

1,998

24

73

36

943

167

7,389

Number of epidemiological questionnaires

         

   Females (affected)

2,033 (703)

526 (193)

1,226 (386)

18 (13)

31 (13)

18 (9)

585 (163)

100 (37)

4,537 (1510)

   Males (affected)

1,122 (5)

262 (6)

745 (5)

5 (0)

18 (0)

11 (0)

303 (3)

36 (0)

2,502 (19)

   Totalc

3,155

788

1971

23

49

29

888

136

7,039d

Number of proxy epidemiological questionnaires

         

   Female (affected)

889(460)

226 (81)

694 (410)

48 (1)

25 (13)

7 (4)

382 (160)

53 (31)

2,284 (1160)

   Male (affected)

862 (7)

206 (3)

608 (9)

11 (0)

18 (0)

5 (0)

336 (1)

53 (1)

2,099 (21)

   Totale

1,751

432

1,302

19

43

12

718

106

4,383

  1. aFinal category (Table 1) after review. bGermline DNA mainly from blood samples but includes 22 obtained from mouthwash specimens. cEpidemiological questionnaires. dThe lower number of epidemiological questionnaires than biospecimens reflects a time-lag in collecting them from the research nurses, and scanning them. eEpidemiological questionnaire data obtained for deceased individuals by proxy.