Assessment and Counseling Gaps Among Former Smokers Eligible for Lung Cancer Screening in US Adults : A Cross-Sectional Analysis of National Health and Nutrition Examination Surveys (NHANES), 2013-2018.

Former smokers eligible for LCS should be asked about recent tobacco use and exposure and considered for cotinine testing. Nearly 1.5 million "former smokers" eligible for LCS may be current tobacco users who have been missed for counseling. The high percentage of "passive smokers" is at least double that of the general nonsmoking population. Counseling about the harms of tobacco use and exposure and resources is needed.