Figure 5From: Longitudinal Numbers-Needed-To-Treat (NNT) for Achieving Various Levels of Analgesic Response and Improvement with Etoricoxib, Naproxen, and Placebo in Ankylosing Spondylitis NNTs vs. placebo for various thresholds of improvement in spine pain from baseline at (A) 2 weeks, (B) 4 weeks, and (C) 6 weeks.Back to article page