| 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | p value | |
|---|---|---|---|---|---|---|---|---|
| Lung cancers (n) | 189 | 214 | 221 | 237 | 191 | 245 | 255 | |
| PS 0 1 | 59% | 51% | 54% | 53% | 49% | 52% | 54% | ns |
| Mean FEV1% pred | 73 | 74 | 71 | 70 | 71 | 75 | 78 | ns |
| stage I-II | 16% | 18% | 17% | 18% | 21% | 28% | 27% | 0.001 |
| surgery | 10% | 11% | 11% | 13% | 17% | 20% | 18% | 0.006 |
| Incidental | 53% | 38% | 50% | 40% | 38% | 32% | 39% | ns |