• Henrica R Schiphorst Preuper, Michiel F Reneman, Anne M Boonstra, Pieter U Dijkstra, Gerbrig J Versteegen, and Jan H B Geertzen.
• Center for Rehabilitation, University Medical Center Groningen, University of Groningen, PO Box 30.002, 9750 RA Haren, The Netherlands. h.r.schiphorst.preuper@cvr.umcg.nl
• Spine J. 2007 Sep 1;7(5):525-30.

Background ContextIn the assessment and treatment of chronic low back pain (CLBP) patients, the biopsychosocial model is used worldwide. Psychological distress has been reported to have a strong relationship with disability as measured with several instruments. The relationship between psychosocial distress measured with the Symptom Checklist-90-Revised (SCL-90-R) and self-reported disability measured with the Roland Morris Disability Questionnaire (RMDQ) has not been investigated.PurposeTo analyze the relationship between psychosocial distress measured with the SCL-90-R and self-reported disability measured with the RMDQ in patients with CLBP.Study Design/SettingThis cross sectional study was performed in an outpatient pain rehabilitation setting.Patient SampleThe study sample consisted of 152 patients with CLBP.Outcome MeasuresSCL-90-R and RMDQ.MethodsAll patients admitted for multidisciplinary treatment completed the SCL-90-R and RMDQ before treatment. Pearson's correlation coefficients between SCL-90-R (Global Severity Index and subscales) and RMDQ were calculated.ResultsCorrelation coefficients between SCL-90-R (Global Severity Index and subscales) and RMDQ ranged from 0.18 to 0.31 (p<.05).ConclusionThe relationship between psychosocial distress measured with the SCL-90-R and self-reported disability measured with the RMDQ in CLBP patients is weak.

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