Table 3. LDCT lung cancer screening knowledge.
| Questions | Responses = Yes, n (%) | Responses = No, n (%) | Responses = DN, n (%) | Missing, n | Accurate, n (%) |
|---|---|---|---|---|---|
| 1. About 85% of lung cancer deaths are caused by smoking? | 1 (7.1) | 10 (71.4) | 3 (21.4) | 1 | 10 (71.4) |
| 2. Lung cancer rank as #1 cause of cancer death in the US? | 0 (0.0) | 10 (71.4) | 4 (28.6) | 1 | 10 (71.4) |
| 3. About half of people with an abnormal CT scan will have lung cancer? | 0 (0.0) | 4 (28.6) | 10 (71.4) | 1 | 0 (0.0) |
| 4. Can a CT scan suggest that you have lung cancer when you do not? | 0 (0.0) | 3 (21.4) | 11 (78.6) | 1 | 3 (21.4) |
| 5. Can CT scan miss a tumor in your lungs? | 2 (14.3) | 2 (14.3) | 10 (71.4) | 1 | 2 (14.3) |
| 6. Without screening, is lung cancer often found a later stage when cure is less likely? | 0 (0.0) | 7 (50.0) | 7 (50.0) | 1 | 7 (50.0) |
| 7. Can CT scan find lung disease that is not cancer? | 0 (0.0) | 6 (42.9) | 8 (57.1) | 1 | 6 (42.9) |
| 8. CT scan cannot find heart disease? | 1 (8.3) | 3 (25.0) | 8 (66.7) | 3 | 1 (8.3) |
| 9. Lung cancer screening with a CT scan lower about 20% chances of dying from lung cancer? | 1 (7.7) | 6 (46.2) | 6 (46.2) | 2 | 6 (46.2) |
| 10. Will all tumors found in the lungs grow to be life threatening? | 1 (7.1) | 3 (21.4) | 10 (71.4) | 1 | 1 (7.1) |
Accurate rate for knowledge scores (n=11) (range, 1–8), mean =4.3; SD =2.6. LDCT, low dose computed tomography. DN, I don't know.