Figure 3From: Longitudinal Numbers-Needed-To-Treat (NNT) for Achieving Various Levels of Analgesic Response and Improvement with Etoricoxib, Naproxen, and Placebo in Ankylosing Spondylitis Proportions of patients achieving various thresholds of improvement in spine pain from baseline at (A) 2 weeks, (B) 4 weeks, and (C) 6 weeks.Back to article page