Table 2 Estimates of SIRs for familial risk of early and late onset nervous system tumours in offspring

From: Familial risks in nervous system tumours: joint Nordic study

 

Sweden, Norway, Denmark and Iceland

 

SIR by concordant family history

SIR by family history of cancer in the nervous system

 

Parental proband

Sibling proband

Parent and sibling proband

Parental proband

Sibling proband

Parent and sibling proband

 

Subsite and age in cases

O

SIR

95% CI

O

SIR

95% CI

O

SIR

95% CI

O

SIR

95% CI

O

SIR

95% CI

O

SIR

95% CI

Cases

Brain

 0–19 years

67

1.7

1.3

2.1

35

2.7

1.9

3.7

  

86

1.9

1.5

2.3

40

2.6

1.8

3.5

5

15.3

4.8

35.9

5751

 20+ years

286

1.7

1.5

1.9

166

1.9

1.6

2.2

17

10.8

6.3

17.3

314

1.6

1.4

1.8

19.5

1.9

1.6

2.2

20

9.5

5.8

14.7

20 991

 All ages

353

1.7

1.5

1.8

201

2.0

1.7

2.3

17

9.4

5.5

15.1

400

1.7

1.5

1.8

235

2.0

1.7

2.2

25

10.3

6.7

15.2

26 742

Spine

 0–19 years

3

14.0

2.6

41.4

2

22.7

2.1

83.7

  

14

3.6

2.0

6.1

4

3.0

0.8

7.6

  

440

 20+ years

1

1.4

0.0

8.2

2

4.2

0.4

15.5

  

22

1.5

0.9

2.2

16

2.1

1.2

3.4

2

12.8

1.2

47.0

1590

 All ages

4

4.4

1.1

11.3

4

7.1

1.8

18.4

  

36

1.9

1.3

2.6

20

2.2

1.4

3.4

2

10.8

1.0

39.9

2030

Peripheral nerves a

 0–19 years

11

29.8

14.8

53.5

5

24.7

7.8

58.1

  

15

2.5

1.4

4.1

8

3.8

1.6

7.6

3

63.0

11.9

186.6

685

 20+ years

5

8.2

2.6

19.2

12

29.2

15.0

51.1

4

1816.7

472.5

4697.6

22

1.5

0.9

2.3

19

2.6

1.6

4.1

7

45.5

18.0

94.3

1037

 All ages

16

16.3

9.3

26.6

17

27.7

16.1

44.4

4

943.9

245.5

2440.6

37

1.8

1.3

2.5

27

2.9

1.9

4.2

10

49.7

23.6

91.7

1722

Nervous system

 0–19 years

            

118

2.1

1.8

2.6

54

2.9

2.2

3.8

8

20.4

8.7

40.5

6963

 20+ years

            

375

1.6

1.4

1.7

240

1.9

1.6

2.1

29

11.1

7.4

16.0

24 374

 All ages

            

493

1.7

1.5

1.8

294

2.0

1.8

2.2

37

12.3

8.7

17.0

31 337

  1. Abbreviation: SIR=standardised incidence ratio.
  2. SIR adjusted for age, sex and 5-year periods.
  3. aDenmark not included. Values given in bold indicate that 95% CI do not include 1.0.