Lung-RADS classification of LDCT, according to PLCOm2012 6-year lung cancer risk
| Variable | PLCO high risk | PLCO low risk | All | P value |
| Lung-RADS | 0.016 | |||
| Positive | 5 (14.3) | 15 (3.7) | 20 (4.6) | |
| Negative | 30 (85.7) | 388 (96.3) | 418 (95.4) | |
| Total | 35 (100.0) | 403 (100.0) | 438 (100.0) |
Lung-RADS positive (categories 3 and 4), negative (categories 1 and 2).
Fisher’s exact test.
LDCT, low-dose CT.