Fig. 5

Incidence of any adverse events in the comparison of traditional NSAIDs versus placebo in patients with ankylosing spondylitis: meta-analysis of five randomized clinical trials. Subtitle: (1) Naproxen 500 mg vs placebo. (2) Ximoprofen 30 mg vs placebo. (3) NSAID (meloxicam 15 mg, meloxicam 22.5 mg, or piroxicam) vs placebo. (4) Ketoprofen 200 mg vs placebo. (5) Naproxen 1000 mg vs placebo