Population	Intervention	Comparison	Outcomes
Women who are at average risk of breast cancer: • 45–49 years • 50–69 years • 70–74 years	Annual, biennial or triennial mammography screening (film or digital)	Another interval (annual, biennial or triennial)	1. Breast cancer mortality 2. Incidence of interval cancer 3. Stage of breast cancer 4. Radiation induced breast cancers 5. Deaths due to radiation induced breast cancers 6. Quality of life 7. False positive related adverse effects 8. Overdiagnosis