Evaluation and Treatment of a Heterogenous Group of Chronic Pain Patients: Assessing the Effect Size of Outcome Measures

dc.contributor.advisorStowell, Anna W.en
dc.creatorWorzer, Whitneyen
dc.date.accessioned2010-07-12T17:38:23Z
dc.date.available2010-07-12T17:38:23Z
dc.date.issued2007-08-08
dc.description.abstractThe aim of the present study was to evaluate an array of psychometric tests administered to a heterogeneous group of chronic pain patients at pre- and post- treatment to determine the effect sizes of the measures. The sample included patients (N=312) who participated in an interdisciplinary treatment program, which included medical, psychological, psychiatric, and physical therapy components. This sample was narrowed to include only those who completed treatment (n=262). Subjects were evaluated on a variety of physical/functional, psychosocial, and coping measures, including the Visual Analog Scale (VAS), Million Visual Analog Scale (MVAS), Oswestry Low Back Pain Disability Questionnaire (OSW), Pain Medication Questionnaire (PMQ), Medical Outcomes Survey 36-Item Short Form Health Survey (SF-36), Beck Depression Inventory-II (BDI-II), and Multidimensional Pain Inventory (MPI). Paired sample t-tests were conducted to evaluate each measure for pre- to post-treatment change. These measures were further analyzed using Cohen's d (1992) to obtain the effect size. Results indicated that the instruments showing the greatest effect size were the VAS (d= 1.27) and the MVAS (d=0.94), both within the large effect size range. The OSW (d=0.67) showed a medium effect size, while the SF-36/PCS (d=0.19) had the lowest effect size of the physical measures. Results indicated a medium effect size for psychosocial measures. The PMQ (d=0.79) BDI-II (d=0.72) and the SF-36/MCS (d=0.62). The MPI exhibited an extremely low effect size (d=0.03). The heterogeneous population was also broken down into three categories of pain diagnoses including musculoskeletal, all other single pain diagnoses (e.g. headache, neuropathy, reflex sympathetic dystrophy, firbomyalgia), and multiple diagnoses (more than one type of pain). Overall, this study offers information on the effect sizes of different measures in order to facilitate the decision making process when selecting assessment tools to use with chronic pain populations, and supports the use of multiple assessment measures.en
dc.format.digitalOriginborn digitalen
dc.format.mediumElectronicen
dc.format.mimetypeapplication/pdfen
dc.identifier.oclc758495793
dc.identifier.urihttps://hdl.handle.net/2152.5/339
dc.language.isoenen
dc.subjectPain Perceptionen
dc.subjectPain Measurementen
dc.subjectPsychological Testsen
dc.titleEvaluation and Treatment of a Heterogenous Group of Chronic Pain Patients: Assessing the Effect Size of Outcome Measuresen
dc.typeThesisen
dc.type.genrethesisen
dc.type.materialTexten
thesis.date.available2008-08-08
thesis.degree.departmentGraduate School of Biomedical Sciencesen
thesis.degree.disciplineCell Regulationen
thesis.degree.grantorUT Southwestern Medical Centeren
thesis.degree.levelMastersen
thesis.degree.nameMaster of Scienceen

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