Causes of pulmonary infiltrates as determined by clinical factors, radiological and microbiological results, and initial breath volatile concentrations for each condition.
| Cause of pulmonary infiltrates | Number of patients (%) | Median H2S concentration (range) (ppb) | Median HCN concentration (range) (ppb) |
|---|---|---|---|
| Pneumonia | 12 (43) | 1.18 (0.61–3.47) | 1.13 (0.50–1.41) |
| Pulmonary oedema | 6 (21) | 1.32 (0.30–2.57) | 1.09 (0.42–3.87) |
| Aspiration lung injury | 4 (14) | 1.31 (1.09–1.54) | 0.85 (0.63–2.73) |
| Atelectasis | 3 (11) | 0.74 (0.42–2.51) | 1.57 (0.47–10.11) |
| ARDS (cause other than pneumonia) | 2 (7) | 0.76 (0.54–0.98) | 0.62 (0.50–0.75) |
| Other | 1 (4) | 0.22 | 0.42 |