Table 3.

Summary of standard and extended eligibility criteria for annual CTLCS

Standard eligibility criteria (USPSTF and CMS)a5,14	Extended eligibility criteriab
55–80 years (CMS: 55–77 years)	50 years or older
≥30 pack-year smoking history	≥20 pack-year smoking history
Either current smoker or quit smoking within the last 15 years	One additional risk factorc including: Previous smoking-related cancer Family history of lung cancer Lung disease history—including pulmonary fibrosis and COPD Radon exposure Occupational exposure—including asbestos, arsenic, beryllium, cadmium, chromium VI, diesel fumes, nickel and silica
Must be asymptomatic	Must be asymptomatic

CMS, Centers for Medicare and Medicaid Services; COPD, chronic obstructive pulmonary diesease; USPSTF, US preventive services task force.

^aRecommendations of USPTF and requirement of CMS. The USPSTF recommends discontinuing screening after a person has not smoked for >15 years, if they develop a health problem that significantly limits life-expectancy, or are no longer able or willing to undergo curative lung cancer treatment.

^bRecommended by National Comprehensive Cancer Network and American Association for Thoracic Surgery.

^cSecondhand smoke exposure is not considered an additional risk factor.