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  • –Adults, asymptomatic.



  • –Do not screen asymptomatic adults for COPD.


  • JAMA. 2016;315(13):1372-1377.


  1. Detection while asymptomatic doesn’t alter disease course or improve outcomes.

  2. Several symptom-based questionnaires have high sensitivity for COPD.

  3. In symptomatic patients (ie, dyspnea, chronic cough, or sputum production with a history of exposure to cigarette smoke or other toxic fumes), diagnostic spirometry to measure FEV1/FVC ratio is indicated.



  • –Asymptomatic persons with >30 pack-year smoking history.


USPSTF 2013 , ASCO 2013, ACCP 2018

  • –Screen for lung cancer annually with low-dose chest CT in adults ages 55–80 y who have at least a 30 pack-year smoking history.

    • USPSTF: age 55–80 y

    • ASCO: age 55–74 y

    • ACCP: age 55–77 y

  • –Stop screening if a person has not smoked for 15 y, or if they develop a significant medical problem that would limit ability to receive treatment for an early stage lung cancer.

  • –Do not screen routinely with chest x-ray and/or sputum cytology.



American Cancer Society, NCCN 2018

  • –Screen with low-dose chest CT if

    • age 55–74 y, a 30 pack-year smoking history, and cessation <15 y ago, or

    • age 50+, a 20 pack-year smoking history, and additional risk factors that raise the risk of cancer by 1.3% per the Tammegami lung cancer risk calculator (PLOS Med 2014;11;1-13).

  • –Screen for at least 3 consecutive years.

  • –Only screen if a highly skilled support team is available to evaluate CT scans, schedule appropriate follow-up, and perform lung biopsies safely when indicated.

  • –Employ shared decision-making.


  • J Natl Compr Canc Netw. 2018;16:412-441.

  • –


  1. Less than 1 in 1000 patients with a false-positive result experience a major complication resulting from diagnostic workup.

  2. Clinical insight:

    1. Counsel all patients against tobacco use, even when age >50 y. Smokers who quit gain ~10 y of increased life expectancy and have maximum reduction in risk of lung cancer after 15 y of no tobacco use. (Br Med J. 2004:328)

    2. Spiral CT screening can detect greater number of lung cancers in smokers with a >10-pack-year exposure. (N Engl J Med. 2006;355: 1763-1771)

    3. The NCI has reported data from the National Lung Screening Trial (NLST), a randomized controlled trial comparing LDCT and CXR yearly × 3 with 8-y follow-up. A total of 53,500 men and women age 50–74 y, 30 pack-year smokers were randomized. A 20.3% reduction ...

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