Figure 14
From: Figures in clinical trial reports: current practice & scope for improvement
Mean Scores Over Time for SF-36 Bodily Pain and Physical Function Scales and Oswestry Disability Index. Age- and sex-weighted population normative scores are plotted for Medical Outcomes Study 36-Item Short-Form Health Survey (SF-36) scales. To enhance readability, the plot symbols and error bars for the surgical group are slightly offset. Error bars indicate 95% confidence intervals. (Weinstein et al. JAMA Nov 22, 2006 p2447)