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. Author manuscript; available in PMC: 2008 Sep 26.
Published in final edited form as: JAMA. 2006 Nov 22;296(20):2441–2450. doi: 10.1001/jama.296.20.2441

Figure 2. Mean Scores Over Time for SF-36 Bodily Pain and Physical Function Scales and Oswestry Disability Index.

Figure 2

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.