Table 2.

Use of chest CT in the past 12 months, overall and to check for lung cancer

Any chest CTChest CT to check for lung cancer
Total nnWeighted%95% CInWeighted%95% CI
Total15,5341,2447.57.1–8.02131.31.1–1.5
Sociodemographic characteristics
Age, y
40–494,4251994.23.5–4.9250.50.3–0.7
50–594,2252836.25.4–7.2441.00.7–1.5
60–693,40135810.69.5–11.9732.21.7–2.8
70–792,08924611.49.9–13.1412.01.4–2.8
80+1,39415811.69.8–13.7301.81.2–2.7
Sex
Male6,7366388.98.2–9.71251.61.3–2.0
Female8,7986066.25.7–6.8881.00.8–1.2
Race/ethnicity
White9,7377817.56.9–8.11351.31.1–1.6
Black2,4932749.98.6–11.4451.51.1–2.2
Hispanic2,3171356.15.0–7.5220.80.5–1.2
Asian875466.14.2–8.991.00.5–2.2
Other11283.71.7–8.121.10.3–4.5
Currently employed
No7,64586811.010.2–11.91602.01.7–2.4
Yes7,8843754.64.1–5.2530.70.5–0.9
Education
Less than high-school graduate2,8142538.67.4–9.9441.41.0–1.9
High-school graduate/GED4,3253718.07.1–8.9691.41.1–1.9
Some college/associate degree4,2763568.17.3–9.0541.30.9–1.7
Bachelor's degree or more4,0472556.05.3–6.9431.00.7–1.4
Family income
<$20,0003,64039510.49.1–12.0771.81.4–2.4
$20,000–$34,9992,9592478.37.0–9.7411.41.0–1.9
$35,000–$54,9992,9632348.47.3–9.7401.51.1–2.1
$55,000–$74,9991,7841307.46.1–8.9150.90.5–1.6
$75,000+4,1882385.54.8–6.3411.00.7–1.4
Risk factors
Smoking
Never8,4795646.05.4–6.6710.80.6–1.0
Former, <30 pack-years2,7112488.97.8–10.2491.71.3–2.4
Former, 30+ pack-years, quit >15 y4116317.413.6–22.092.41.1–4.9
Former, 30+ pack-years, quit ≤15 ya70810514.612.0–17.7344.43.2–6.1
Current, <30 pack-years1,7861336.45.4–7.6221.00.7–1.4
Current, 30+ pack-yearsa926849.07.1–11.2191.81.1–3.1
Unknown513477.85.8–10.391.10.5–2.2
Attempted to quit smoking in the last 12 mo (current smokers)
No1,5861066.14.9–7.7181.00.6–1.7
Yes1,1881168.97.3–10.8251.71.1–2.5
Secondhand smoke exposure
No12,7991,0287.57.0–8.11811.31.1–1.6
Yes2,6962117.66.5–8.8321.10.7–1.6
Occupational exposure to vapors/gas/dust/fumes (among employed, past 12 mo)
No6,3983014.64.1–5.3460.80.6–1.1
Yes2,2931415.84.8–7.0150.60.4–1.1
Family history of lung cancer
No13,6671,0567.36.8–7.91821.21.0–1.5
Yes827939.27.2–11.8181.71.0–3.0
Unknown1,040958.56.5–11.1131.30.7–2.4
Personal history of cancer other than lung
No13,5958996.15.7–6.61160.80.6–1.0
Yes1,93934517.315.3–19.5974.73.7–5.9
Health status
Respiratory conditions diagnosed by a health professional
None13,0588926.56.0–7.01331.00.8–1.2
Any2,46434913.111.7–14.7782.92.3–3.7
Emphysema (ever)45810721.217.3–25.8367.35.1–10.3
Asthma (ever)1,83625312.711.1–14.5552.82.0–3.8
Asthma (attack in past 12 mo)67812618.315.1–22.0284.12.7–6.2
Chronic bronchitis (past 12 mo)85315117.614.7–20.8374.33.0–6.2
Limitations in activities due to lung/breathing problem
No14,9441,1187.06.6–7.61781.10.9–1.3
Yes51012222.718.7–27.3356.84.7–9.9
General health status
Excellent/very good/good12,4857255.65.1–6.11190.90.7–1.1
Fair/poor3,04051817.215.6–18.9943.22.6–4.1
Health care access
Insurance status, age < 65
Uninsuredb2,007593.12.3–4.060.30.1–0.8
Public only1,69223111.910.2–13.7492.31.6–3.2
Privatec6,8443895.75.1–6.4550.90.6–1.2
Insurance status, age ≥ 65
Uninsuredb9279.34.1–19.922.50.5–10.6
Public only2,39727410.89.5–12.2501.91.4–2.6
Privatec2,47228411.910.5–13.4512.21.6–2.9
Usual source of health care other than ER
No1,783532.61.9–3.780.40.2–0.8
Yes13,7451,1908.17.6–8.62051.41.2–1.6
Number of office visits to doctor or other health professional in last year
02,268190.80.5–1.430.10.0–0.4
12,144612.61.9–3.5130.40.2–0.7
2–56,5183935.54.9–6.2590.80.6–1.1
6+4,55176616.315.1–17.61372.92.4–3.5

NOTE: Source: 2010 NHIS.

  • a“Higher risk” smokers, defined according to the eligibility criteria for the NLST of LDCT.

  • bIncludes Medicare Part A only.

  • cIncludes Medicare Part A and B with supplemental private insurance.