Figure S1. Risk of bias graph showing review authors' judgments about each risk of bias domain
presented as percentages across placebo-controlled trials on efficacy of NSAIDs for spinal pain
Figure S2. Risk of bias summary showing review authors' judgements about each risk of bias domain
in placebo-controlled trials on efficacy of NSAIDs for spinal pain. Randomized trials are listed
alphabetically by author name
Figure S3. Funnel plot. Plot of effect size between NSAIDs and placebo versus their respective
standard error. Each circle represents one trial