Future development of models that are truly transdisciplinary, and address temporal and multidimensional aspects of occupational disability, remains a goal.
Abstract:The Pain Medication Questionnaire (PMQ) was designed to assess the risk for opioid medication misuse in chronic pain patients. A preliminary study showed a positive relationship between higher PMQ scores and concurrent measures of substance abuse, psychopathology, and physical/ life-functioning. Using a larger sample size, the present study sought to replicate these findings, and to expand upon them by examining the relationship between PMQ scores and various treatment outcomes. The PMQ was administered to 271 newly evaluated chronic pain patients who were subsequently re-evaluated immediately post-treatment, as well as six months following discharge. Subgroups were then formed according to the lowest (L-PMQ), middle (M-PMQ), and highest (H-PMQ) one-third of PMQ total scores. It was found that the H-PMQ group was 2.6 times more likely to have a known substance-abuse problem, 3.2 times more likely to request early refills of prescription medication, and 2.3 times more likely to drop out of treatment, as compared to the L-PMQ group. They also had diminished biopsychosocial functioning. In addition, at six months following discharge, patients who completed the program experienced a significant decrease in PMQ scores over time relative to those patients who were unsuccessfully discharged from the program or who dropped out. This study represents the second stage in the development of a psychometrically sound screening tool for measuring risk for opioid medication misuse among chronic pain patients, and findings suggest the long-term utility of the PMQ in identifying patients who are more likely to complete and benefit from a pain management program.
The present study was designed to evaluate the relative degree and type of emotional distress in high-risk acute low back pain (ALBP) subjects (defined as less than 3 months since initial injury) vs. high-risk chronic low back pain (CLBP) subjects (defined as greater than 3 months since initial injury). It is an extension of earlier findings that demonstrated the significant role that such emotional distress may play in the development of CLBP disability if not appropriately treated in the acute phase. This work stems from a conceptual three-stage model, which characterizes the progression from acute to chronic pain. Several psychosocial measures were administered that included information allowing for the classification of subjects as high-risk based upon an earlier developed screening algorithm. The ANCOVA procedure in SPSS was used to compare groups, controlling for gender, ethnicity, and age. Results revealed that CLBP subjects had higher rates of certain measures of emotional distress and depression relative to ALBP subjects. These findings further support the importance of effectively managing emotional distress factors early, when treating musculoskeletal disorders such as low back pain.
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