| Breath sample of volunteer without cancer (groups A+C) | Breath sample of volunteer with confirmed lung cancer (group B) | Total | |
| Dogs indicating presence of lung cancer | 28 | 71 | 99 |
| Dogs indicating absence of lung cancer | 372 | 29 | 401 |
| Total | 400 | 100 | 500 |
Data are cumulative results and are presented as n.