J Breast Cancer.
2024 Dec;27(6):351-361. 10.4048/jbc.2024.0213.
Breast Cancer Statistics in Korea, 2021
- Cha CD
1 - Park CS2
- Shin HC3
- Han J4
- Choi JE5
- Kim JH6
- Jung KW7
- Lee SB8
- Nam SE9
- Yoon TI10
- Kang YJ11
- Kim Z12
- Jung SY4
- Kim HA2
- the Korean Breast Cancer Society
- Affiliations
-
- 1Department of Surgery, Hanyang University Medical Center, Hanyang University College of Medicine, Seoul, Korea
- 2Department of Surgery, Korea Cancer Center Hospital, Korea Institute of Radiological and Medical Sciences, Seoul, Korea
- 3Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
- 4Center for Breast Cancer, National Cancer Center, Goyang, Korea
- 5Department of Surgery, Yeungnam University College of Medicine, Daegu, Korea
- 6Department of Surgery, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Korea
- 7The Korea Central Cancer Registry, National Cancer Center, Goyang, Korea
- 8Division of Breast Surgery, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
- 9Department of Surgery, Konkuk University School of Medicine, Seoul, Korea
- 10Division of Breast Surgery, Department of Surgery, Dongnam Institute of Radiological and Medical Science, Busan, Korea
- 11Department of Surgery, Incheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Incheon, Korea
- 12Department of Surgery, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea
- KMID: 2563968
- DOI: http://doi.org/10.4048/jbc.2024.0213
Abstract
- The Korean Breast Cancer Society (KBCS) has collected nationwide registry data on clinicopathologic characteristics and treatment since 1996. This study aimed to analyze the clinical characteristics of breast cancer in Korea and assess changes in breast cancer statistics for 2021 using data from the KBCS registry and the Korean Central Cancer Registry. In 2021, 34,628 women were newly diagnosed with breast cancer. The median age of women diagnosed with breast cancer was 53.4 years, with the highest incidence occurring in the 40–49 age group. The most common molecular subtype was hormone receptor-positive and human epidermal growth factor receptor 2 (HER2)-negative, accounting for 69.1% of cases, while HER2-positive subtypes comprised 19.3%. During the coronavirus disease 2019 pandemic, the national breast cancer screening rate declined. However, the incidence of early-stage breast cancer (stages 0 and I) continued to increase, accounting for 65.6% of newly diagnosed cases in 2021. Our results showed that the overall survival rate for patients with breast cancer has improved, primarily due to a rise in early-stage diagnoses and advancements in treatment.
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