Survival of children with malignant germ cell, trophoblastic and other gonadal tumours in Europe

Collaborators of the EUROCARE study had provided records on 1263 cases of g erm cell, trophoblastic and other gonadal neoplasms, registered in 34 cance r registries in 16 European countries over the period 1978-1992 and followe d-up until the end of 1994. Observed 5-year actuarial survival for 490 case s diagnosed in 1985-1989 was 80% (95% confidence interval (CI) = (76, 83)). The corresponding figures were calculated for the intracranial and intrasp inal germ cell tumours (68%, 95% CI = (57, 76)), other non-gonadal germ cel l tumours (76%, 95% CI = (68, 82)), gonadal germ-cell tumours (89%, 95% CI = (85, 93)) and gonadal carcinomas (50%, CI =(24, 76)). Relatively large di fferences in survival were observed between age-sex subgroups, which also d iffered with histology, with extremely poor survival of young children with intracranial and intraspinal germ cell tumours, Lower survival was observe d in the countries with formerly socialist economies. Time trends in surviv al were examined for the entire study period, including only the cases regi stered in the large contributing registries. For all germ cell tumours, the risk ratios calculated in the Cox regression analysis were markedly lowere d for the years after the reference period of 1978-1981. The improved outco me is attributed to treatment advances. (C) 2001 Elsevier Science Ltd. All rights reserved.