Age, yr | 1994 and 2001 Canadian guidelines10,11 | 2009 US guidelines12 | 2011 Canadian guidelines*2 | |||
---|---|---|---|---|---|---|
Mammography | CBE | Mammography | CBE | Mammography | CBE | |
40–49 | No recommendation either for or against (every 12–18 mo) | Every 1–2 yr | No recommendation either for or against (every 2 yr) | Insufficient evidence | Recommend against | Recommend against |
50–69 | Every 1–2 yr | Every 1–2 yr | Every 2 yr | Insufficient evidence | Every 2–3 yr | Recommend against |
70–74 | Insufficient evidence | Every 1–2 yr | Every 2 yr | Insufficient evidence | Every 2–3 yr | Recommend against |
Note: CBE = clinical breast examination.
↵* All 2011 recommendations are classified as “weak.”