Cancer in adolescents and young adults: National incidence and characteristics in Japan |
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| Institution: | 1. Division of Health Services Research, Center for Cancer Control and Information Services, National Cancer Center, Tokyo, Japan;2. Division of Data Management, Center for Cerebral and Cardiovascular Disease Information, National Cerebral and Cardiovascular Center, Osaka, Japan;3. Children’s Cancer Center, National Center for Child Health and Development, Tokyo, Japan;4. Division of Registration and Research for Childhood Cancer, Children’s Cancer Center, National Center for Child Health and Development, Tokyo, Japan;1. Group of Evaluation of Health Determinants and Health Policies, Department of Basic Sciences, Universitat Internacional de Catalunya, Sant Cugat del Vallès, Spain;2. Tobacco Control Unit, Cancer Prevention and Control Program, Institut Català d’Oncologia, L''Hospitalet de Llobregat, Barcelona, Spain;3. Cancer Prevention and Control Group, Institut d''Investigació Biomèdica de Bellvitge – IDIBELL, L''Hospitalet de Llobregat, Barcelona, Spain;4. Department of Clinical Sciences, School of Medicine, Universitat de Barcelona, Barcelona, Spain;5. Group of Integrative Pharmacology and Systems Neuroscience, Neurosciences Programme, IMIM (Hospital del Mar Medical Research Institute), Parc de Recerca Biomèdica de Barcelona, Barcelona, Spain;6. Catalan Network of Smoke-free Hospitals, L’Hospitalet de Llobregat, Barcelona, Spain;7. Addictions Unit, Institute of Neurosciences, Hospital Clínic de Barcelona, Barcelona, Spain;8. Department of Experimental and Health Sciences, Universitat Pompeu Fabra, Parc de Recerca Biomèdica de Barcelona, Barcelona, Spain;1. Department of Pediatrics, Chung-Ang University Hospital, Seoul, Republic of Korea;2. Department of Internal Medicine, Nasaret International Hospital, Incheon, Republic of Korea;3. Department of Clinical Epidemiology and Biostatistics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea;4. College of Medicine, Chung-Ang University, Seoul, Republic of Korea;5. Department of Pediatrics, Asan Medical Center, Children’s Hospital, University of Ulsan College of Medicine, Seoul, Republic of Korea;1. Centre for Public Health Research, Massey University-Wellington Campus, PO Box 756, Wellington 6140, New Zealand;2. Melbourne School of Population and Global Health, University of Melbourne, Parkville, VIC 3010, Australia;3. National Advisor NCD, Head of National Wellness Centre, Ministry of Health & Medical Services, Fiji;4. John A. Burns School of Medicine, University of Hawaii, University of Hawaii Cancer Center,677 Ilalo Street, Honolulu, HI 96813, United States;1. BioForum, Applied Knowledge Center, Ness-Ziona, Israel;2. University of Gerona, Gerona, Spain;1. Collaboration for Cancer Outcomes, Research and Evaluation, The Ingham Institute for Applied Medical Research, Liverpool Hospital, UNSW, Sydney, Australia;2. Applied Radiation Biology and Radiotherapy Section, Division of Human Health e Department of Nuclear Sciences and Applications, International Atomic Energy Agency, PO Box 100, 1400 Vienna, Austria;1. Faculty of Health Sciences of the University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal;2. Clinical Epidemiology and Biostatistics, School of Medical Sciences, Örebro University, SE 701 82 Örebro, Sweden;3. Department of Statistics, Örebro University, 701 82, Örebro, Sweden;4. Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, SE 171 77, Stockholm, Sweden;5. Clinical Epidemiology Unit, Department of Medicine, Karolinska University Hospital, Solna, Karolinska Institutet, SE 171 76 Stockholm, Sweden;6. Department of Epidemiology and Public Health, University College, WC1E 6BT London, UK |
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| Abstract: | ObjectiveAdolescents and young adults (AYA) with cancer are confronted with unique challenges in areas of paramount concern within their age group, such as fertility, education, career, and delayed and long-term effects of treatment. However, the extent and depth of the problem has never been examined in the Japanese population. The aim of this study was to describe the status of cancer patients in the AYA population, using data from the hospital-based cancer registry (HBCR).Study designPatients included in the HBCR from January 2011 to December 2014 were included in this study to evaluate the incidence and cancer distribution trends among AYA. The total number and the proportion of AYA (15–39 years of age) stratified by sex, age, and cancer type were obtained. The incidence of age-specific cancer among AYA was also calculated.ResultsWe identified 30,394 male (35.1%) and 56,100 female (64.9%) cancer patients in the population, which collectively constituted about 3% of all invasive cancer cases. The incidence of cancer in AYA was estimated as 86.2 per 100,000 per year, and increased with age. The most affected population was women between 35 and 39 years of age (35%). Breast cancer was the most common type of cancer, followed by cervical, uterine, and thyroid cancers.ConclusionA substantial number of AYA are diagnosed with cancer every year. The distribution of cancer types in AYA was dependent on age and sex. These diversities in cancer types can inform researchers and policy makers to fine-tune their studies and policies. |
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| Keywords: | Adolescents Young adults Cancer Incidence Cancer registry Japan |
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