Fig. 3From: Maintenance of effect of duloxetine in Chinese patients with pain due to osteoarthritis: 13-week open-label extension dataResponse rates at the end of the extension phase. The response rates were based on the change from baseline of the placebo-controlled phase to endpoint (last observation carried forward) in Brief Pain Inventory average pain rating. Abbreviations: DLX = duloxetine; PLA = placeboBack to article page