Benefits and harms of screening mammography every 1 or 2 years for 10-years

Scroll down to find tables for every 1 or 2 year screening by age

• The tables are for women at "average risk" of breast cancer  
• Per the US Preventive Services Task Force, average risk means:
•      No personal history of breast cancer 
•      No previously diagnosed high-risk breast lesion 
•      No known underlying genetic mutation, eg, BRCA1 or BRCA2   
•      No history of chest radiation at a young age

    NOTE:  Detailed explanation of all methods are below 

       (see fact check document, and calculations for fact check)

• Steven Woloshin, MD, MS and H. Gilbert Welch, MD, MPH created the tables and hold the copyright.