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Background: The exhaustive collection of new sarcoma cases and their second histologic review offer a unique opportunity to study their incidence and time trends in France according to the major subtypes.Methods: Data were collected from population-based cancer registries covering 22% of the French population. Crude and world age-standardized incidence rates (ASR) were estimated according to anatomic, histological and genetic groups, age and sex over the 2010-2013 period.Results: Time trends in incidence were calculated by the annual percent change over the 2000-2013 period. During the most recent period (2010-2013), 3942 patients with sarcoma were included. The ASR of soft-tissue and bone sarcomas, and gastro-intestinal stromal tumors (GIST) were 2.1, 1.0 and 0.6, respectively. For the four most frequent histological subtypes (unclassified, leiomyosarcoma, GIST and liposarcoma), the ASR ranged from 0.4 to 0.7. ASRs were 1.9 for complex genomic and 1.3 for recurrent translocation sarcomas. The time-trend analysis showed a significant increase of sarcoma incidence rate between 2000 and 2005, which stabilized thereafter. Incidence rates increased for four histological subtypes (GIST, chondrosarcoma, myxofibrosarcoma, solitary fibrous tumors) and decreased for three (leiomyosarcomas, Kaposi sarcoma and fibrosarcoma).Conclusion: To our knowledge, this study is the first to investigate sarcoma incidence based on a systematic pathological review of these cancers and on the updated sarcoma classifications. Due to the paucity of literature on sarcomas, future studies using data from population-based cancer registries should consider a standardized inclusion criterion presented in our study to better describe and compare data between countries. [ABSTRACT FROM AUTHOR]

This study aimed to describe cancer incidence (2000-2008) and survival (2000-2004) in France in adolescents and young adults (AYA). All cases of cancer diagnosed in 15-24 years, recorded by all French population-based registries (14% of the French population), over the 2000-2008 period, were included. Incidence change over time was described with the conventional annual percentage change (cAPC). The survival of cases diagnosed (2000-2004) was estimated using Kaplan-Meier method. A total of 1022 in adolescents and 1396 in young adults were diagnosed. Overall incidence rates were 219.4/106 in 15-19 year olds and 293.1/106 in 20-24 year olds. The most frequently diagnosed cancers in male AYA were malignant gonadal germ-cell tumors and Hodgkin's disease, and were melanoma, thyroid carcinoma, and Hodgkin's disease in females. The age-standardized rates appeared stable over time in AYA, with a cAPC of +2.0% ( P = 0.68). The 5-year overall survival for all cancers was different between genders and age groups, with 78.8% (95%CI: 75.6-82.0) for males and 85.2% (95%CI: 82.2-88.1) for females ( P = 0.01), and 78.5% (95%CI: 75.0-82.1) in 15-19 year olds and 84.3% (95% CI: 81.6-87.0) in 20-24 year olds ( P = 0.02). Noteworthy, the frequency and the distribution of tumor types in AYA are unique and different from the observed at any other age group. Survival in French AYA has improved over time. Epidemiological data might reflect major trends in the risk factors and preventive interventions. Thus, further research into etiology of cancers affecting AYA should become key priorities for cancer control among AYA. [ABSTRACT FROM AUTHOR]

Abstract: The aim of this study was to describe the overall survival after childhood cancer in France using follow-up data from regional population-based registries. The survival of children (aged under 15 years) diagnosed with a cancer during 1990–1999 was analysed. For all cancers, the survivals were, respectively, 90.3% [89.4–91.3] at 1-year, 75.2% [73.8–76.6] at 5 years and 72.2% [70.7–73.7] at 10 years. During the 1990s, the average improvement in the 5-year survival was +1.2% per year. Adjusted for gender, age, area of residence and stage, children with cancer diagnosed between 1995 and 1999 had a 0.80 reduced risk of dying compared with those whose cancer had been diagnosed between 1990 and 1994. The increase of survival at the population level reflects a global improvement in childhood cancer care. The Paediatric Registries, in association with the French Society of Childhood Cancer, are now collecting data to quantify on a national basis the other events, at least relapse and second cancers. [Copyright &y& Elsevier]

Summary: Background: Adolescent cancer is the leading cause of non-accidental mortality in young people. The tumour types occurring most commonly in this age group are distinctive and differ markedly from those developing in younger children and older adults. Objective: The aim is to present survival data for the major types of cancer and for all malignancies combined in adolescents aged from 15 to 19 years, highlighting intercountry differences, temporal trends, and age/treatment regimen comparisons of survival rates. Results: Results from European and American data show that 5-year overall survival among adolescents with cancer is approximately 73–78%, close to that observed among children. As in paediatric series, there are geographical differences, with lower survival rates in Eastern European countries. Adolescents have substantially lower survival than children for acute lymphoid leukaemia, malignant non-Hodgkin lymphoma, Ewing’s tumour, osteosarcoma, soft-tissue sarcoma. Temporal improvement in survival from children cancer is twice higher than survival from adolescents malignancies. Conclusion: Several reasons could explain these geographical differences, such as better referral, greater availability of complex and expensive treatment regimens, reflecting variations in health care systems and resources. Age-group variations could be explained by differences in biology and in treatment regimen, and lack of participation in clinical trials. Some are inherent in the psychosocial characteristics of these patients, such as delays in seeking medical attention, poor compliance with treatment. It is necessary to focus on cancer in adolescence, as the new frontier in oncology, and adolescents with cancer must be now the subject of specific survival analyses. [Copyright &y& Elsevier]

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Abstract: Cancer is the third most significant cause of mortality in French adolescents. The aim of this study was to investigate survival of adolescents with cancer. Overall (OS), disease-specific (DSS) and event-free survival (EFS) were used for the outcome analysis of adolescents (15–19 years) with cancer, recorded by nine French population-based registries during the 1988–1997 period. Five-year OS, DSS and EFS were, respectively, 74.0% (70.7–77.4), 74.5% (71.2–77.9), and 69.0% (65.4–72.5). Five-year DSS was 94% for carcinomas, 89% for germ-cell tumours, 85% for lymphomas, 67% for soft-tissue sarcomas, 64% for CNS tumours, 55% for malignant bone tumours, and 41% for leukaemia. Compared with paediatric series, poor results in acute lymphoblastic leukaemia, malignant bone tumours, and soft-tissue sarcomas have to be highlighted, and deserve further studies concerning the type of regimens used for these patients. Multidisciplinary management of adolescent cancer in paediatric, adult, or specialized units will improve cure rates and treatment outcomes for these patients. [Copyright &y& Elsevier]