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Table 1 Characteristics of cases of neuroblastic tumour in the NRYPMDRa

From: Temporal clustering of neuroblastic tumours in children and young adults from Northern England

 

No. of cases (%)

Overall (0–24 years)

227 (100 %)

Males

118 (52 %)

Females

109 (48 %)

Age at diagnosis:

 

<18 months

76 (33.5 %)

18 months – 4 years

99 (43.6 %)

5–24 years

52 (22.9 %)

Time period:

 

1968–1978

49 (21.6 %)

1979–1989

60 (26.4 %)

1990–2000

61 (26.9 %)

2001–2011

57 (25.1 %)

 

Mean

Median

Inter-quartile range

Age at diagnosis (years)

3.74

2.23

0.96–4.51

Annual number of cases

5.16

5

4–7

  1. aBased on cases diagnosed during 1968-2011 inclusive