| Phenotype | Samples n | HCN concentration ppbv | |||
| 24 h | 48 h | 72 h | 96 h | ||
| Mucoid | 48 | 43 (12–136) | 127 (35–418) | 525 (84–2234) | 747 (91–3107) |
| Nonmucoid | 48 | 99 (22–350) | 626 (27–2279) | 2196 (36–5528) | 1441 (78–6429) |
Data are presented as median (interquartile range), unless otherwise stated. ppbv: parts per billion by volume.