- Cancer is the leading cause of death in children aged 1-14 and the second leading cause for adolescents aged 15-19 in Spain, prompting the establishment of a Cancer Registry in Madrid for monitoring incidence and survival rates.
- A retrospective analysis of childhood and adolescent cancer cases (0-19 years) from the registry revealed an age-standardized incidence rate of 192.7 cases per million person-years in Madrid, with the most common types being CNS tumours, leukaemias, and lymphomas.
- There was a similar proportion of metastatic tumours at diagnosis for younger (0-14) and older (15-19) age groups, both around 18.6%, indicating a consistent cancer