Table 2

Primary Care Physicians’ Lung Cancer Screening Beliefs, Self-Reported Practices, and Patient Influence (N=962)

MeasureUnweighted nWeighted % (95% CI)
Physician beliefs
Believes any expert group recommends lung cancer screening23925.1 (22.2–28.2)
Believes chest radiograph is effective in reducing lung cancer mortality for
 Never smokers26927.7 (25.1–30.5)
 Former smokers51052.4 (49.0–55.8)
 Current smokers46848.0 (44.7–51.3)
Believes sputum cytology is effective in reducing lung cancer mortality for
 Never smokers17517.8 (15.7–20.2)
 Former smokers27328.3 (25.7–31.0)
 Current smokers31933.3 (30.5–36.3)
Believes LDCT is effective in reducing lung cancer mortality for
 Never smokers32534.0 (31.1–37.0)
 Former smokers57460.4 (57.2–63.5)
 Current smokers63466.8 (63.5–69.9)
Physician practices
Lung cancer screening tests ordered in past 12 monthsa
 Chest radiograph53055.3 (52.0–58.4)
 Sputum cytology414.5 (3.3–6.2)
 LDCT21122.3 (19.9–24.9)
Patterns of lung cancer screening tests ordered in past 12 months
 Chest radiograph only32934.0 (30.9–37.2)
 LDCT only343.6 (2.5–5.3)
 Chest radiograph and LDCT, with or without sputum cytology16717.8 (15.4–20.5)
 Sputum cytology, with or without chest radiograph or LDCT212.0 (1.3–3.0)
 None36037.6 (34.9–40.4)
 Unknown515.0 (3.7–6.7)
Patient influence
Number of patients who have asked about lung cancer screening in past 12 months
 029330.3 (27.7–33.0)
 1–525326.2 (23.2–29.4)
 6–1017418.4 (15.8–21.4)
 11–2011912.5 (10.5–14.8)
 >2010811.1 (8.9–13.7)
 Unknown151.5 (0.9–2.5)
  • CI=confidence interval; LDCT = low-dose spiral computed tomography.

  • a Physicians responded to survey items asking, “During the past 12 months, to screen an asymptomatic patient for lung cancer, did you ever order…” None indicates negative response for all 3 tests.