Sections View Full Chapter Figures Tables Videos Annotate Full Chapter Figures Tables Videos Supplementary Content ++ Table 2-10 summarizes numbers needed to screen for commonly used tests. ++Table Graphic Jump LocationTable 2-10.Numbers needed to screen (NNS).View Table||Download (.pdf) Table 2-10. Numbers needed to screen (NNS). Disease Test Population NNS AAA Ultrasonography Ever smoking men, age 65–74 500 to prevent 1 AAA specific death over 5 years Osteoporosis DEXA Women 75–79 Women 65–69 Women 60–64 238 to prevent 1 hip fracture; 96 to prevent 1 vertebral fracture 556 to prevent 1 hip fracture over 5 years; 233 to prevent 1 vertebral fracture 1000 to prevent 1 hip fracture; 435 to prevent 1 vertebral fracture Breast cancer Mammography Women 60–69 Women 50–59 Women 40–49 320 to prevent 1 breast cancer death over 14 years 1138 to prevent 1 breast cancer death over 14 years 1618 to prevent 1 breast cancer death over 14 years Colorectal cancer Fecal occult blood testing Annual screening, patients over 50 Biennial screening 217 to prevent 1 colorectal cancer death 344–1250 to prevent 1 colorectal cancer death Lung cancer Low-dose CT Asymptomatic persons aged 55–74 with ≥ 30 pack year smoking history; former smokers must have quit within the past 15 years 320 to prevent 1 lung cancer death Prostate cancer PSA Men 55–69 1410 to prevent 1 prostate cancer death AAA, abdominal aortic aneurysm; DEXA, dual-energy x-ray bone absorptiometry; PSA, prostate-specific antigen. Your Access profile is currently affiliated with '[InstitutionA]' and is in the process of switching affiliations to '[InstitutionB]'. Please click ‘Continue’ to continue the affiliation switch, otherwise click ‘Cancel’ to cancel signing in. Get Free Access Through Your Institution Learn how to see if your library subscribes to McGraw Hill Medical products. Subscribe: Institutional or Individual Sign In Username Error: Please enter User Name Password Error: Please enter Password Forgot Password? Forgot Username? Sign in via OpenAthens Sign in via Shibboleth