Figure 4

MYCN amplification status and age at diagnosis of Swedish patients with unfavorable neuroblastoma (n=121). Present cases, representing the period 1986–2010, have been merged with all other cases of unfavorable neuroblastoma found in the Swedish Childhood Cancer Registry during the period 1984–2008. Data is presented in 6-month age intervals. Unfavorable criteria were: lethal tumor progression, MYCN amplification, INRGSS Stage M and >18 months of age at diagnosis, and INRGSS Stage L2 >12 years of age at diagnosis.