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Table 1 Characteristics of cases of neuroblastic tumours in the study population (based on cases diagnosed during 1985-2016 inclusive)

From: Temporal clustering of neuroblastic tumours in children and young adults from Ontario, Canada

  

Number of cases (%)

 

Overall (0-19 years)

 

876 (100)

 

Males

 

481 (54.9)

 

Females

 

395 (45.1)

 

Age at diagnosis:

  < 18 months

 

393 (44.9)

 

 18 months – 4 years

 

364 (41.6)

 

 5 – 19 years

 

119 (13.6)

 

Time period:

 1985-1992

 

193 (22.0)

 

 1993-2000

 

203 (22.2)

 

 2001-2008

 

227 (25.9)

 

 2009-2016

 

253 (28.9)

 
 

Mean

Median

Quartile 1, Quartile 3

Age at diagnosis (years)

2.57

1.77

0.67, 3.66

Annual number of cases

27.4

27

21, 32