Mean difference in lung function measures in non-placebo controlled studies (positive number favours the 200 µg dose)
| Weeks | FEV1 (l) | PEF—am (l/min) | PEF—pm (l/min) | ||
|---|---|---|---|---|---|
| *From reference 21; data expressed as mean (SE). | |||||
| †From reference 20; data expressed as mean (95% CI). | |||||
| 200 v 100 µg* | 26 | −3.0 | (3.5) | 10.7 (7.4) | 13.1 (6.4) |
| 200 v 400 µg † | 52 | −11.4 (−5.6 to −17.3) | −11.9 (−6.2 to −17.6) | ||
| 200 v 1000 µg* | 8 | 3.6 | (3.1) | 5.2 (8.9) | 2.5 (8.3) |