Clinical parameters during treatment
| Variable | Clarithromycin | Placebo | p-value |
| Subjects n | 12 | 9 | |
| LOS h | 51 (48–68) | 88 (72–100) | <0.05# |
| Duration of supplemental oxygen need h | 31 (28–42) | 72 (52–80) | <0.05# |
| Duration of supplemental intravenous fluid h | 26 (22–36) | 56 (46–66) | <0.05# |
| Duration of β2-agonist therapy days | 5 (4–7) | 7 (5–7) | <0.05# |
| Readmission to hospital¶ | 1 (8.3) | 4 (44.4) | <0.05+ |
Data are presented as median (interquartile range) and n (%), unless otherwise stated. LOS: length of stay. #: Mann–Whitney U-test; ¶: within 6 months of discharge; +: Chi-squared test.