Table 1. Screening and diagnostic outcomes in the US National Lung Screening Trial.
| Detection status | Variable | Number |
|---|---|---|
| Screen 1 |
Persons screened |
26 309 |
| |
Further investigations |
6369 |
| |
Cancers |
270 |
| Screen 2 |
Persons screened |
24 715 |
| |
Further investigations |
3866 |
| |
Cancers |
168 |
| Screen 3 |
Persons screened |
24 102 |
| |
Further investigations |
2522 |
| |
Cancers |
211 |
| Between screens |
Interval cancers |
44 |
| After screening ceased/nonattenders | Cancers diagnosed | 367 |