Patient demographic and socioeconomic characteristics
Data on 114 patients with histopathologically-confirmed medulloblastoma (aged 3-18 years) admitted between 1997 and 2016 were retrieved from medical charts. The male:female ratio was 1.32, the median age at diagnosis was 8.2 years (range 3-17.7). Almost seventy-five percent of children lived in the city of Rio de Janeiro and surrounding areas. The median distance from home to the cancer center was 40 kilometers.
High maternal education was found in 30% (n=34) of the patients, however, this information was only available for 47% of patients (n=53). The median maternal age at diagnosis was 35 years (range: 20-54). Nearly 20% of families lived with a household income of less than 1 minimum wage in this study. The median time between onset of symptoms and surgery was 50.5 days (range: 0-1151 days) (Table 1).