. 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 1.1. Comparison 1 Combined inhalers versus Placebo (Primary Outcomes), Outcome 1 Exacerbation Rates with combined inhalers v. placebo.

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

Comparison: 1 Combined inhalers versus Placebo (Primaiy Outcomes)

Outcome: 1 Exacebation Rates with combined inhalers v. placebo