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Five-Year Overall Survival of Interval Breast Cancers is Better than Non- Interval Cancers from Korean Breast Cancer Registry

Authors
 Jung Sun Lee  ;  Hyun-Ah Kim  ;  Se-Heon Cho  ;  Han-Byoel Lee  ;  Min Ho Park  ;  Joon Jeong  ;  Heung Kyu Park  ;  Minkyung Oh  ;  Onvox Yi 
Citation
 Asian Pacific Journal of Cancer Prevention, Vol.20(6) : 1717-1726, 2019 
Journal Title
 Asian Pacific Journal of Cancer Prevention 
ISSN
 1513-7368 
Issue Date
2019
Keywords
Breast Neoplasm ; Early Detection of Cancer ; Health care Disparities ; Prognosis ; mammography
Abstract
OBJECTIVE: Interval breast cancer (IC) is a limitation of breast cancer screening. We investigated data from a large scaled breast cancer dataset of patients with breast cancer who underwent breast cancer screening in order to recapitulate the overall survival (OS) of patients with ICs compared to those with non-ICs. METHODS: A total of 27,141 patients in the Korean breast cancer registry with breast cancer who had ever participated in biannual national breast cancer screening programs between 2009 and 2013 were enrolled. We compared the social, pregnancy-associated, and pathologic characteristics between the IC and non-IC groups and identified the significant prognostic factors for OS. RESULTS: The proportion of ICs was 1.3% (370/27,141) in this study population. ICs were correlated with age 45-55 years at diagnosis, higher levels of education, early menopause (<50 years), hormone replacement therapy, specific provinces (Kangwon, Kyungnam, Jeju, and Dae-jeon), and family history of breast cancer. Low-to-intermediate nuclear grade, early stage (stage 0-I), and low Ki-67 level were also correlated with IC proportion. Non-ICs were associated with an increased risk of five-year mortality (hazard ratio [HR] 7.4; 95% confidence interval [CI]:1.85-29.66; p = 0.005) compared to ICs. Lymph node metastasis, residence (Kyung-nam province), low education status, high histologic grade, and asymptomatic cancers increased the HR of five-year OS. CONCLUSION: ICs occurred unequally in specific province and relatively high-educated women in Korea. They were also diagnosed with early-stage breast cancer with a favorable recurrence risk, and their outcome was better than those of patients with other breast cancers in breast cancer screening.
Files in This Item:
T201903027.pdf Download
DOI
10.31557/APJCP.2019.20.6.1717
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Surgery (외과학교실) > 1. Journal Papers
Yonsei Authors
Jeong, Joon(정준) ORCID logo https://orcid.org/0000-0003-0397-0005
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/171164
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