Risk profile of individuals according to NLST criteria and PLCOm2012 6-year lung cancer risk
| Variable | PLCO high risk | PLCO low risk | All | P value |
| NLST | <0.001 | |||
| NLST criteria | 29 (82.9) | 42 (10.4) | 71 (16.2) | |
| Non-NLST criteria | 6 (17.1) | 361 (89.6) | 367 (83.8) | |
| Total | 35 (100.0) | 403 (100.0) | 438 (100.0) |
McNemar’s test (McNemar’s test is used to compare paired proportions).
NLST, National Lung Screening Trial.