Context
The extent to which patients take chronic pain medications as prescribed is not well studied, and there are no generally agreed-upon measures. The Quantitative Analgesic Questionnaire (QAQ) is a new instrument designed to comprehensively document patient-reported medication use, generate scores to quantify it (by individual drug, class, and/or overall), and compare it (qualitatively and/or quantitatively) to the regimen as prescribed.
Objectives
The aim of this study was to describe the development and preliminary validation of the QAQ.
Methods
The QAQ was studied in a convenience sample of 149 HIV-infected participants.
Results
We found that the QAQ scores computed for participants’ chronic pain medication regimens were valid based on their correlation with: 1) patient-reported pain intensity (r=0.38, P<0.001); and 2) experienced pain management physicians’ independent quantification of the regimens (r=0.89; P<0.001). The QAQ also demonstrated high inter-rater reliability (r=0.957; P<0.001). Detailed examination of the QAQ data in a subset of 34 participants demonstrated that the QAQ revealed suboptimal adherence in 44% of participants, and contained information that would not have been gleaned from review of the medical record alone in 94%, including use of over-the-counter medications, and quantification of “as needed” dosing. The QAQ also was found to be useful in quantifying change in the medication regimen over time, capturing a change in 50% of the participants from baseline to eight-week follow-up.
Conclusion
The QAQ is a simple tool that can facilitate understanding of patient-reported chronic pain medication regimens, including calculation of percent adherence and generation of quantitative scores suitable for estimating and tracking change in medication use over time.
The current study provides evidence that the vagal component of HIV-associated autonomic neuropathy is associated with changes in immune and gastrointestinal function in individuals with well treated HIV. Further study will be needed to understand whether therapies targeted at enhancing vagal function could be of benefit in HIV.
Treatment guidelines for chronic pain recommend non-pharmacologic modalities as part of a comprehensive management plan. Chronic pain is common among people living with HIV/AIDS, but there is little data to guide the choice of non-pharmacologic therapies in this complex population. We performed a mixed-methods feasibility study of Mindfulness Based Stress Reduction (MBSR) versus health education control with 32 inner city, HIV-infected participants. Outcome measures included: the Brief Pain Inventory, Perceived Stress Scale, HIV Symptoms Index, autonomic function testing, and audiotaped focus groups. Post-intervention, participants reported modest improvements in pain measures and perceived stress, but no effect of group assignment was observed. At 3-month follow-up, 79% of MBSR participants were still practicing, and pain intensity was improved, whereas in the control group pain intensity had worsened. Qualitative analysis revealed a strong sense of community in both groups, but only MBSR was perceived as useful for relaxation and pain relief.
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