From: Are exhaled nitric oxide measurements using the portable NIOX MINO repeatable?
 | First FeNO reading |  | |||
---|---|---|---|---|---|
 | Low | Normal | Intermediate | High | Total |
Second FeNO reading | Â | Â | Â | Â | Â |
   Low | 0 (0%) | 0 (0%) | 0 (0%) | 0 (0%) | 0 (0%) |
   Normal | 0 (0%) | 334 (97%) | 3 (4%) | 0 (0%) | 337 (68%) |
   Intermediate | 0 (0%) | 10 (3%)) | 72 (87%) | 1 (2%) | 83 (17%) |
   High | 0 (0%) | 0 (0%) | 8 (10%) | 66 (99%) | 74 (15%) |
   Total | 0 (0%) | 344 (100%) | 83 (100%) | 67 (100%) | 494 (100%) |