TABLE 2.

Estimates of the Number of Smokers (in Millions) in the 2012 HRS Survey Who Met the 2013 USPSTF and 2015 Medicare Lung Cancer Screening Criteria^a

Age Group	USPSTFb		Medicare FFSc
	No.	95% CI	No.	95% CI
55–64	4.6	4.2–5.0	0.6	0.42–0.69
65–74	3.1	2.8–3.4	1.7	1.49–1.91
75–77			0.3	0.22–0.35
75–80	0.7	0.6–0.8
Total	8.4	7.9–8.9	2.5	2.28–2.79

Abbreviations: 95% CI, 95% confidence interval; FFS, fee-for-service; HRS, Health and Retirement Study; LE, life expectancy; USPSTF, US Preventive Services Task Force.

^aEstimates were weighted to produce nationally representative results.

^bIn 2013, the USPSTF recommended lung cancer screening with low-dose computed tomography in adults aged 55 to 80 years who have a 30 pack-year smoking history and currently smoke or have quit within the past 15 years.

^cMedicare covers screening for beneficiaries aged 55 to 77 years who have a 30 pack-year smoking history and currently smoke or have quit within the past 15 years.