Figure 1From: Indacaterol provides 24-hour bronchodilation in COPD: a placebo-controlled blinded comparison with tiotropium 24-h post-dose (trough) FEV 1 (L) after 14 days of treatment (mITT population). Data are LSM ± SE. ***p < 0.001 vs placebo; †p = 0.043 vs tiotropium. FEV1, forced expiratory volume in 1 sBack to article page