Efficacy and Safety of Duloxetine in Patients with Chronic Low Back Pain Who Used versus Did Not Use Concomitant Nonsteroidal Anti-Inflammatory Drugs or Acetaminophen: A Post Hoc Pooled Analysis of 2 Randomized, Placebo-Controlled Trials

Figure 2

Estimated least-squares (LS) mean changes from baseline and standard errors in RMDQ rating in patients who concomitantly used or did not use NSAID or APAP.