Long‐term survival and conditional survival of cancer patients in Japan using population‐based cancer registry data

Cancer Science

Yuri Ito²  Isao Miyashiro²  Hidemi Ito³  Satoyo Hosono³  Dai Chihara³  Kayo Nakata-Yamada²  Masashi Nakayama⁴  Masashi Matsuzaka¹  Masakazu Hattori⁶  Hiromi Sugiyama⁸  Isao Oze³  Rina Tanaka¹  Etsuko Nomura²  Yoshikazu Nishino⁷  Tomohiro Matsuda⁵  Akiko Ioka²  Hideaki Tsukuma²  Tomio Nakayama² 

[1] Department of Cancer Epidemiology and Community Health, Hirosaki University Graduate School of Medicine, Hirosaki, Japan;Center for Cancer Control and Statistics, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan;Division of Epidemiology and Prevention, Aichi Cancer Research Institute, Nagoya, Japan;Department of Urology, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan;Surveillance Division, Center for Cancer Control and Information Services, National Cancer Center, Tokyo, Japan;Department of Cancer Therapy Center, Fukui Prefectural Hospital, Fukui, Japan;Division of Epidemiology, Miyagi Cancer Center, Research Institute, Natori, Japan;Department of Epidemiology, Radiation Effects Research Foundation, Hiroshima, Japan

关键词: Cancer;    cancer registry;    conditional survival;    period analysis;    survival;   

DOI  :  10.1111/cas.12525

来源: Wiley

【 摘 要 】

Abstract

Although we usually report 5-year cancer survival using population-based cancer registry data, nowadays many cancer patients survive longer and need to be followed-up for more than 5 years. Long-term cancer survival figures are scarce in Japan. Here we report 10-year cancer survival and conditional survival using an established statistical approach. We received data on 1 387 489 cancer cases from six prefectural population-based cancer registries in Japan, diagnosed between 1993 and 2009 and followed-up for at least 5 years. We estimated the 10-year relative survival of patients who were followed-up between 2002 and 2006 using period analysis. Using this 10-year survival, we also calculated the conditional 5-year survival for cancer survivors who lived for some years after diagnosis. We reported 10-year survival and conditional survival of 23 types of cancer for 15–99-year-old patients and four types of cancer for children (0–14 years old) and adolescent and young adults (15–29 years old) patients by sex. Variation in 10-year cancer survival by site was wide, from 5% for pancreatic cancer to 95% for female thyroid cancer. Approximately 70–80% of children and adolescent and young adult cancer patients survived for more than 10 years. Conditional 5-year survival for most cancer sites increased according to years, whereas those for liver cancer and multiple myeloma did not increase. We reported 10-year cancer survival and conditional survival using population-based cancer registries in Japan. It is important for patients and clinicians to report these relevant figures using population-based data.

【 授权许可】

CC BY-NC   
© 2014 The Authors. Cancer Science published by Wiley Publishing Asia Pty Ltd on behalf of Japanese Cancer Association.

Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.