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Check also the following factsheets: Japan, Cervical, Colorectal
Country fact sheet: Japan
BREAST CANCER SCREENING PROGRAMME
| Reporting year for qualitative data: | 2020 |
| Source of qualitative data: | Directly from Programme |
Organization of screening | |
| An individual/team/institution responsible to coordinate the programme: | Yes |
| Dedicated budget for screening programme: | Yes |
| Documented cancer screening policy: | Yes |
| Nature of documentation of the policy: | Notification |
| Year programme was initiated: | 1987 |
| Programme introduction was preceded by a pilot: | No |
| Screening tests provided free of charge: | No |
| Diagnostic tests provided free of charge: | No |
| Treatment services provided free of charge: | No |
Information system and data collection | |
| System that collects data: | Aggregated |
| • Identification of eligible population: | - |
| • Screening participation: | Aggregated |
| • Screening test results: | Aggregated |
| • Further assessment: | Aggregated |
| • Final pathology diagnosis: | Aggregated |
| • Cancer staging: | Aggregated |
| • Treatment: | No |
| The information system exists at national or sub-national level: | Individual: Unknown Aggregated: National |
| The information system collects data outside the programme (opportunistic screening/private sector): | No |
| Cancer screening data is linked with population-based cancer registry (PBCR): | Yes |
Screening protocol | |
| A screening protocol or guideline: | Yes |
| Year of published/updated protocol: | 2016 |
| Target age (min-max) and screening interval [months] for each test: | Mammography/DBT (40-99 years / [24 months]) |
| All mammograms read by two radiologists independently: | Yes, all mammograms |
Invitations for screening and further assessment | |
| Initiatives to create population awareness by the Health Ministry/Health Authority: | Small media campaign Dedicated website |
| Invitations to eligible population: | Other |
| Source of the eligible individuals identified: | - |
| Method of invitation: | - |
| Screen positive individuals actively contacted for further assessment: | Yes |
| Individuals with a precancer or cancer diagnosis actively contacted: | Yes |
Quality Assurance (QA) of screening activities | |
| Documented standard operating procedure/policy for QA: | Yes |
| An individual/team/institution responsible for QA: | Yes |
| Accreditation of mammography units: | Yes |
| Accreditation of pathology services: | Yes |
| Documented performance indicators: | Yes |
| Reference standards for performance indicators: | Yes |
| Evaluation reports published in the last five years: | Yes |
Performance indicators | |
| Reporting year for quantitative data: | 2017 |
| Source of quantitative data: | Directly from programme |
| Age range and regional limitation if applicable: | 40-79 years |
| Invitation coverage (%): | |
| Participation rate (%): | |
| Examination coverage (%): | 15.1 |
| Completeness of data related to screening test results (%): | 96.9 |
| Completeness of data related to further assessment results (%): | 91.8 |
| Further assessment rate (%): | 6.0 |
| Further assessment participation rate (%): | 92.9 |
| Detection rate of CIS (x 1000): | 0.35 |
| Detection rate of invasive cancer (x 1000): | 2.7 |
| Detection rate of CIS and invasive cancer (x 1000): | 3.12 |
| Positive Predictive Value of abnormal screening test to detect CIS (x 1000): | 0.65 |
| Positive Predictive Value of invasive cancer (x 1000): | 5.0 |
| Positive Predictive Value of CIS and invasive cancer (x 1000): | 5.7 |
| More quantitative data (2017) | |
Check also the following factsheets: Japan, Cervical, Colorectal