Parental cancer as a risk factor for brain tumors (Sweden)
OBJECTIVE: We used the nationwide Swedish Family-Cancer Database to analyze the risk for adult (15-61 years) brain tumors in offspring through parental cancer probands. Additionally, cancer risks were assessed among siblings of brain tumor probands.METHODS: In offspring and parents, respectively, 5,425 and 20,938 cases of brain tumors were diagnosed between the years 1958 and 1996. Groups of offsp