Characteristics of female breast cancer in japan: annual report of the National Clinical Database in 2018

Keiichiro Tada; Hiraku Kumamaru; Hiroaki Miyata; Sota Asaga; Kotaro Iijima; Etsuyo Ogo; Takayuki Kadoya; Makoto Kubo; Yasuyuki Kojima; Kenta Tanakura; Kenji Tamura; Masayuki Nagahashi; Naoki Niikura; Naoki Hayashi; Minoru Miyashita; Masayuki Yoshida; Shinji Ohno; Shigeru Imoto; Hiromitsu Jinno

doi:10.1007/s12282-022-01423-4

Characteristics of female breast cancer in japan: annual report of the National Clinical Database in 2018

Breast Cancer. 2023 Mar;30(2):157-166. doi: 10.1007/s12282-022-01423-4. Epub 2022 Dec 22.

Authors

Keiichiro Tada¹, Hiraku Kumamaru², Hiroaki Miyata², Sota Asaga³, Kotaro Iijima⁴, Etsuyo Ogo⁵, Takayuki Kadoya⁶, Makoto Kubo⁷, Yasuyuki Kojima⁸, Kenta Tanakura⁹, Kenji Tamura¹⁰, Masayuki Nagahashi¹¹, Naoki Niikura¹², Naoki Hayashi¹³, Minoru Miyashita¹⁴, Masayuki Yoshida¹⁵, Shinji Ohno¹⁶, Shigeru Imoto³, Hiromitsu Jinno¹⁷

Affiliations

¹ Department of Breast and Endocrine Surgery, Nihon University School of Medicine, 30-1 Oyaguchikamicho, Itabashi-Ku, Tokyo, 173-8610, Japan. tada.keiichiro@nihon-u.ac.jp.
² Department of Healthcare Quality Assessment, University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan.
³ Department of Breast Surgery, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka, Tokyo, 181-8611, Japan.
⁴ Department of Breast Oncology, Juntendo University, 3-1-3 Hongo, Bunkyo-Ku, Tokyo, 113-8431, Japan.
⁵ Department of Radiology, Kurume University School of Medicine, 67 Asahi-Machi, Kurume, Fukuoka, 830-0011, Japan.
⁶ Department of Surgical Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima, 734-8553, Japan.
⁷ Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-Ku, Fukuoka, 812-8582, Japan.
⁸ Division of Breast and Endocrine Surgery, Department of Surgery, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-Ku, Kawasaki, 216-8511, Japan.
⁹ Plastic and Reconstructive Surgery, Mitsui Memorial Hospital, 1 Kanda-Izumicho, Chiyoda-Ku, Tokyo, 101-8643, Japan.
¹⁰ Department of Medical Oncology, Shimane University Hospital, 89-1 Enya-Cho, Izumo-Shi, Shimane, 693-8501, Japan.
¹¹ Department of Surgery, Division of Breast and Endocrine Surgery, School of Medicine, Hyogo Medical University, 1-1 Mukogawa, Nishinomiya, Hyogo, 663-8501, Japan.
¹² Department of Breast Oncology, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan.
¹³ Department of Breast Surgical Oncology, St. Luke's International Hospital, 9-1 Akashicho, Chuo-Ku, Tokyo, 104-8560, Japan.
¹⁴ Department of Breast and Endocrine Surgical Oncology, Tohoku University School of Medicine, Seiryo-Machi, Aoba-Ku, Sendai, 980-8574, Japan.
¹⁵ Department of Diagnostic Pathology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-Ku, Tokyo, 104-0045, Japan.
¹⁶ Breast Oncology Center, Cancer Institute Hospital, 3-8-31 Ariake, Koutou-Ku, Tokyo, 135-8550, Japan.
¹⁷ Department of Surgery, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-Ku, Tokyo, 173-8606, Japan.

Abstract

Information regarding patients who were treated for breast cancer in 2018 was extracted from the National Clinical Database (NCD), which is run by Japanese physicians. This database continues from 1975, created by the Japanese Breast Cancer Society (JBCS). A total of 95,620 breast cancer cases were registered. The demographics, clinical characteristics, pathology, surgical treatment, adjuvant chemotherapy, adjuvant endocrine therapy, and radiation therapy of Japanese breast cancer patients were summarized. We made comparisons with other reports to reveal the characteristics of our database. We also described some features in Japanese breast cancer that changed over time. The unique characteristics of breast cancer patients in Japan may provide guidance for future research and improvement in healthcare services.

Keywords: Annual report; Breast neoplasms; Japanese Breast Cancer Society; National Clinical Database in Japan; Registry.

MeSH terms

Breast Neoplasms* / drug therapy
Breast Neoplasms* / therapy
Chemotherapy, Adjuvant
Combined Modality Therapy
Databases, Factual
Female
Humans
Japan / epidemiology