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Symptomatic patients: mean changes from baseline in FEV1 at week 6 over 24 hours.
Notes: Placebo N=60, aclidinium 400 μg N=116, tiotropium 18 μg N=101. *P<0.05 versus tiotropium; P<0.05 for aclidinium 400 μg versus placebo and tiotropium 18 μg versus placebo at all time points, except aclidinium at 10 hours (P=0.08) and tiotropium at 23 hours (P=0.14).
Abbreviations: FEV1, forced expiratory volume in 1 second; LS, least squares.
