Group (date) | Frequency of screening (years) | Initiation of screening for women at average risk | ||
40 to 49 years of age | 50 to 69 years of age | ≥70 years of age | ||
Government-sponsored groups | ||||
US Preventive Services Task Force (2016)[1] | 2 | Individualize* | Yes | Yes, to age 74 |
Canadian Task Force on Preventive Health Care (2018)[2] | 2 to 3 | Recommend against* | Yes | Yes, to age 74 |
National Health Service, United Kingdom (2018)[3] | 3 | Yes, start age 47 | Yes | Yes, to age 73 |
Royal Australian College of General Practitioners (2018)[4] | 2 | No | Yes | Yes, to age 74 |
Medical societies | ||||
American College of Obstetricians and Gynecologists (2017)[5] | 1 to 2* | Individualize* | Yes | Yes, to at least age 75¶ |
American College of Physicians (2019)[6] | 2 | Individualize* | Yes | Yes, to age 74 |
American Cancer Society (2015)[7] | 1 year age 45 to 54 | Individualize* through age 44 Yes, start age 45 | Yes | YesΔ |
1 to 2 years age ≥55 | ||||
American College of Radiology (2017)[8] | 1 | Yes | Yes | Yes◊ |
Coalitions | ||||
National Comprehensive Cancer Network (2018)[9] | 1 | Yes | Yes | Yes |