. Author manuscript; available in PMC: 2014 Sep 15.

Published in final edited form as: Cochrane Database Syst Rev. 2007 Oct 17;(4):CD003794. doi: 10.1002/14651858.CD003794.pub3

Analysis 3.11. Comparison 3 Budesonide/formoterol (BDF) versus placebo (PLA), Outcome 11 Withdrawals due to worsening COPD symptoms.

Review: Combined corticosteroid and long-acting beta-agonist in one inhaler versus placebo for chronic obstructive pulmonary disease

Comparison: 3 Budesonide/formoterol (BDF) versus placebo (PLA)

Outcome: 11 Withdrawals due to worsening COPD symptoms