title: Retrospective observation on contribution and limitations of screening for breast cancer with mammography in Korea: detection rate of breast cancer and incidence rate of interval cancer of the breast.
abstract: The purpose of this study was to determine the benefits and limitations of screening for breast cancer using mammography.
  
  
  
  Descriptive design with follow-up was used in the study. Data from breast cancer screening and health insurance claim data were used. The study population consisted of all participants in breast cancer screening from 2009 to 2014. Crude detection rate, positive predictive value and sensitivity and specificity of breast cancer screening and, incidence rate of interval cancer of the breast were calculated.
  
  
  
  The crude detection rate of breast cancer screening per 100,000 participants increased from 126.3 in 2009 to 182.1 in 2014. The positive predictive value of breast cancer screening per 100,000 positives increased from 741.2 in 2009 to 1,367.9 in 2014. The incidence rate of interval cancer of the breast per 100,000 negatives increased from 51.7 in 2009 to 76.3 in 2014. The sensitivities of screening for breast cancer were 74.6% in 2009 and 75.1% in 2014 and the specificities were 83.1% in 2009 and 85.7% in 2014.
  
  
  
  To increase the detection rate of breast cancer by breast cancer screening using mammography, the participation rate should be higher and an environment where accurate mammography and reading can be performed and reinforcement of quality control are required. To reduce the incidence rate of interval cancer of the breast, it will be necessary to educate women after their 20s to perform self-examination of the breast once a month regardless of participation in screening for breast cancer.
authors.affiliation: Departments of Preventive Medicine, School of Medicine, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul, 143-701, South Korea.
authors.forename: Kunsei
authors.initials: K
authors.lastname: Lee
authors.affiliation: Departments of Preventive Medicine, School of Medicine, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul, 143-701, South Korea. mubul@kku.ac.kr.
authors.forename: Hyeongsu
authors.initials: H
authors.lastname: Kim
authors.affiliation: Departments of Preventive Medicine, School of Medicine, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul, 143-701, South Korea.
authors.forename: Jung Hyun
authors.initials: JH
authors.lastname: Lee
authors.affiliation: Departments of Preventive Medicine, School of Medicine, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul, 143-701, South Korea.
authors.forename: Hyoseon
authors.initials: H
authors.lastname: Jeong
authors.affiliation: Bigdata Steering Department, National Health Insurance Service, Wonju, South Korea.
authors.forename: Soon Ae
authors.initials: SA
authors.lastname: Shin
authors.affiliation: Yonsei University Health System, College of Medicine, Yonsei University, Seoul, South Korea.
authors.forename: Taehwa
authors.initials: T
authors.lastname: Han
authors.affiliation: Department of Radiology, Kangdong Seong-Sim Hospital, College of Medicine, Hallym University, Seoul, South Korea.
authors.forename: Young Lan
authors.initials: YL
authors.lastname: Seo
authors.affiliation: Departments of Surgery, School of Medicine, Konkuk University, Seoul, South Korea.
authors.forename: Youngbum
authors.initials: Y
authors.lastname: Yoo
authors.affiliation: Departments of Surgery, School of Medicine, Konkuk University, Seoul, South Korea.
authors.forename: Sang Eun
authors.initials: SE
authors.lastname: Nam
authors.affiliation: Bigdata Steering Department, National Health Insurance Service, Wonju, South Korea.
authors.forename: Jong Heon
authors.initials: JH
authors.lastname: Park
authors.affiliation: Medical and Health Policy Division, Seoul Metropolitan Government, Seoul, South Korea.
authors.forename: Yoo Mi
authors.initials: YM
authors.lastname: Park
mesh_terms: D000328:Adult; D000368:Aged; D001943:Breast Neoplasms / Q000175:diagnosis*; D055088:Early Detection of Cancer; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D015994:Incidence; D008327:Mammography / Q000592:standards*; D008403:Mass Screening / Q000379:methods* / Q000592:standards; D008875:Middle Aged; D056910:Republic of Korea; D012189:Retrospective Studies
keywords: Breast cancer; Mammography; Screening