| Year | Endo tumour? | Total patients | Positive diagnosis cancer | BAL (% positive) | Bronchial brushings (% positive) | TBNA (% positive) |
| 2003–4 CC | + | 48 | 38 (79%) | 19/45 (42) | 12/30 (40) | 2/8 (25) |
| 2006–7 LBC | + | 48 | 41 (85%) | 25/44 (57) | 19/29 (64) | 5/11 (45) |
| 2003–4 CC | − | 20 | 4 (25%) | 3/20 (15) | ND | 1/2 (50) |
| 2006–7 LBC | − | 26 | 8 (30%) | 6/23 (26) | ND | 2/3 (75) |