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TABLE 2: 
Linear regression of baseline Roland and pain with activity scores
CovariateRolandBaseline, Pain with ActivityBaseline, Pain at Rest
Baseline
    Pain with activity<.001.06
    Pain at rest.002.06
    Roland score<.001.04
Age.09.58.30
Sex (male).06.20.99
Level
    Lumbar.50.38.12
    Thoracic.64.29.18
Number of levels treated.45.43.35
  • Note.—Columns indicate P values.