Nitrate and nitrite concentrations (μmol/l) in cystic fibrosis sputum and control endotracheal secretions
| Cystic fibrosis stable | Cystic fibrosis exacerbation | Controls | |
|---|---|---|---|
| Nitrate | |||
| Median (95% CI) | 259 (213 to 335)2-150 | 184 (165 to 414) | 144 (96 to 260) |
| Range | 0–518 | 0–1028 | 73–528 |
| Nitrite | |||
| Median (95% CI) | 128 (91 to 209) | 28 (47 to 196) | ND |
| Range | 0–423 | 0–593 |
ND = not detectable.
↵2-150 Significantly different from controls (p<0.02).