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Table 2 Age at diagnosis of pediatric cancer in families with one - or multiple children with cancer

From: Predominance of girls with cancer in families with multiple childhood cancer cases

 

Mean age at diagnosis

 

FAM > 1

FAM1

 

LCCG-study

 

Gen. Pop.

Diagnosis

years ± SD (n)

years ± SD (n)

p

years ± SD (n)

p

years [24]

All diagnoses

7.1 ± 5.2 (86)

7.2 ± 5.0 (487)

0.842

7.2 ± 5.1 (534)

0.997

 

Leukemia

5.9 ± 4.2 (30)

5.8 ± 4.3 (154)

0.974

5.8 ± 4.2 (170)

0.941

5.0

CNS tumor

7.6 ± 5.1 (22)

8.4 ± 4.5 (100)

0.506

8.4 ± 4.6 (110)

0.449

7.0

Lymphoma

13.7 ± 2.7 (11)

11.0 ± 4.7 (72)

0.067

11.3 ± 4.6 (81)

0.101

10.8

Histiocytosis

3.5 + 1.2 (2)

4.3 ± 3.7 (11)

0.783

4.2 ± 3.5 (12)

0.770

Neuroblastoma

1.6 ± 1.2 (4)

2.1 ± 2.7 (22)

0.721

2.1 ± 2.7 (24)

0.740

1.3

Retinoblastoma

0.9 ± 1.0 (3)

1.4 ± 1.0 (2)

0.652

0.9 ± 0.8 (4)

0.935

1.3

Bone tumor

13.4 ± 5.4 (3)

10.8 ± 4.9 (40)

0.370

10.8 ± 4.9 (40)

0.370

11.6

Hepatic tumor

2.0 ± 1.0 (3)

0.7 ± 0.9 (3)

0.179

1.4 ± 1.1 (6)

0.429

1.1

Soft tissue sarcoma

5.3 ± 3.5 (3)

5.7 ± 4.2 (28)

0.863

5.5 ± 4.1 (30)

0.910

6.5

Germ-cell tumors

12.6 (1)

8.9 ± 6.8 (11)

0.611

9.2 ± 6.5 (12)

0.627

8.7

Carcinomas

6.0 (1)

9.2 ± 4.3 (5)

0.532

9.2 ± 4.3 (5)

0.532

111

Wilms’ tumor

6.1 ± 6.2 (3)

3.6 ± 3.3 (34)

0.238

3.6 ± 3.2 (35)

0.231

3.3

Others

- (0)

- (5)

- (5)

  1. Abbreviations: FAM > 1 families with multiple cases of childhood cancer, FAM1 families with one case of childhood cancer, LCCG Lund Childhood Cancer Genetic, Gen.Pop General childhood cancer population, CNS central nervous system