Table 1 Characteristics of high-risk neuroblastoma patients

Number of patients

848

Number of high-risk patients

286

Stage 4 patients > 1 year of age

251

Stage 4 infants with MYCN amplification

9

Patients with localised disease with MYCN amplification > 1 year of age

19

Infants with localised MYCN amplified tumours

4

Stage 4 s with MYCN amplification

3

MYCN status (n)

 Amplification present

116

 No amplification

119

 Unknown

51

Age (months)

 range

0.8 – 186.3

 mean

43.3

 median

32.4