53 research outputs found

    A novel mhealth application for improving HIV and Hepatitis C knowledge in individuals with opioid use disorder

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    Aims: Untreated opioid use disorder (OUD) is associated with overdose, premature death and infectious disease, including human immunodeficiency virus (HIV) and Hepatitis C (HCV). While prior studies have shown that educational interventions are associated with improvements in HIV and HCV knowledge and reductions in risk behaviors, those examined to date have typically been time- and resource-intensive. We recently developed an HIV+HCV Education intervention which aims to improve HIV and HCV knowledge in a single visit using an automated iPad platform. In this project, we examined its ability, using a within-subject evaluation, to improve knowledge of HIV and HCV transmission and risks among adults with OUD. Methods: Participants were 25 adults with OUD who were enrolled in a 12-week randomized trial evaluating the efficacy of an Interim Buprenorphine Treatment (IBT) for reducing illicit opioid use while awaiting entry into community-based opioid treatment. Participants completed a baseline HIV+HCV knowledge assessment (Pre-Test) followed by corrective feedback, both administered via iPad. They then completed an interactive HIV flipbook and animated HCV video, also on iPad, followed by a second administration of the knowledge assessment (Post-Test). Finally, to evaluate whether any changes in knowledge persisted over time, the HIV+HCV assessment was administered again at 4 and 12 weeks following study intake. Results: At baseline (Pre-Test), participants answered 69% and 65% of items correctly on the HIV and HCV assessments, respectively. After completing the educational intervention, participants answered 86% of items correctly on both the HIV and HCV assessments (p’s\u3c.001). These improvements in knowledge also persisted throughout the three-month study, with scores at Week 4 and 12 timepoints significantly greater than baseline (p’s\u3c.001). Conclusion: An HIV+Hepatitis Education intervention delivered via a portable, automated iPad platform may produce significant and persistent improvements in HIV and HCV knowledge among adults with OUD. These data provide additional support for the use of mobile educational interventions for enhancing HIV and HCV knowledge in individuals at elevated risk for infectious disease. Support: This trial was supported by NIDA R34 DA3730385 (Sigmon) with additional support by NIDA T32 DA007242 (Higgins)

    A one stop shop for cost-effectiveness evidence? Recommendations for improving Disease Control Priorities

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    Setting out a health benefits package (HBP) of interventions to be prioritised for funding is an important step towards achieving universal health coverage in low and middle income countries. The 3rd version of the Disease Control Priori-ties (DCP3) database, and other similar databases, aim to establishing a single point of reference (“one stop shop”) for cost effectiveness evidence to inform HBP design and other policy making. We reflect upon our experiences in using DCP3 for HBP design and offer suggestions for improving the future reporting of cost-effectiveness evidence. We appraise DCP3 based on generalisability, level of detail, and accessibility. We find that DCP and similar initiatives should be commended for the systematic assessment of a vast array of cost-effectiveness studies—the magnitude of such an endeavour is impressive in its own right. However, there are flaws. In future, providing disaggregated esti-mates of costs and effects, quantifying uncertainty, and systematically assessing the context in which estimates apply would make this evidence more useful for decision maker

    Cost effectiveness thresholds: the past, the present and the future

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    Cost-effectiveness (CE) thresholds are being discussed more frequently and there have been many new developments in this area; however, there is a lack of understanding about what thresholds mean and their implications. This paper provides an overview of the CE threshold literature. First, the meaning of a CE threshold and the key assumptions involved (perfect divisibility, marginal increments in budget, etc.) are highlighted using a hypothetical example, and the use of historic/heuristic estimates of the threshold is noted along with their limitations. Recent endeavours to estimate the empirical value of the thresholds, both from the supply side and the demand side, are then presented. The impact on CE thresholds of future directions for the field, such as thresholds across sectors and the incorporation of multiple criteria beyond quality-adjusted life-years as a measure of ‘value’, are highlighted. Finally, a number of common issues and misconceptions associated with CE thresholds are addressed

    Fentanyl exposure among patients seeking opioid treatment

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    Aim: Overdoses attributed to the potent opioid agonist fentanyl have substantially increased in recent years. Despite these serious public health consequences, many opioid treatment providers do not currently include a fentanyl assay in their urine toxicology testing. As a result, extent of fentanyl exposure and related risks among individuals with opioid use disorder often remains unknown. We examined the prevalence of fentanyl exposure among patients seeking or enrolled in opioid agonist treatment. Methods: Six hundred urine specimens were collected from adults entering (n = 100) or enrolled in (n = 500) opioid agonist treatment and analyzed using the clinic's standard opioid panel, supplemented with a 100 ng/ml fentanyl assay. Results: Of the 100 specimens collected from patients at treatment intake, 19 (19%) tested positive for fentanyl. Importantly, 17 (90%) of those fentanyl-positive specimens were also positive for heroin. Of the 500 collected from patients in treatment, 17 (3%) of specimens tested positive for fentanyl. Of those, 11 (92%) were also positive for heroin. Conclusion: These data illustrate a concerning degree of fentanyl exposure among patients seeking treatment and suggest that much of this exposure may have stemmed from fentanyl-containing heroin. Given the unprecedented recent surges in fentanyl-related overdoses, efforts to identify fentanyl exposure are critical. In particular, the point of treatment entry permits a rare systematic opportunity for medical and clinical staff to address fentanyl use and risks with incoming patients

    Promoting smoking abstinence among patients with chronic obstructive pulmonary disease: Initial feasibility

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    Chronic obstructive pulmonary disease (COPD) is the third leading cause of death in the U.S., with the majority of COPD deaths attributable to cigarette smoking. Despite this, individuals with COPD have a higher prevalence of smoking, poorer quit rates, and higher relapse rates compared to smokers without a COPD diagnosis. We examined the feasibility of an incentives-based intervention for producing an initial period of biochemically-verified smoking abstinence among daily smokers with COPD. Participants were randomly assigned to a Contingent (n = 13) or Noncontingent (n = 16) incentives condition and visited the clinic for 14 consecutive days. Contingent participants earned vouchers with monetary value contingent on breath carbon monoxide (CO) levels during Study Days 1–5 and urinary cotinine during Days 6–14. Voucher earnings began at 9.00andincreasedby9.00 and increased by 1.50 with each subsequent negative sample for maximum possible of $362.50. Noncontingent participants received vouchers of comparable value independent of smoking status. Differences between conditions varied across study days for daily smoking abstinence (X2 = 45.27, p < 0.0001), CO (F(13, 280) = 1.95, p = 0.025), and cotinine (F(13, 279) = 2.20, p = 0.010), with generally higher rates of abstinence and lower CO and cotinine levels observed in the Contingent vs. Noncontingent conditions. Results from this randomized pilot study support the potential efficacy of an incentives-based intervention for reducing cigarette smoking among individuals with COPD. Further research efforts should seek to promote and evaluate longer-term abstinence and associated changes in respiratory function. Keywords: Chronic obstructive pulmonary disease, Smoking, Behavioral intervention, Financial incentives, Vouchers, Contingency management, Carbon monoxide, Cotinin

    Synthesis and Biological Activity of 25-Hydroxy-2-methylene-vitamin D<sub>3</sub> Analogues Monohydroxylated in the A‑ring

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    The 20<i>R</i>- and 20<i>S</i>-isomers of 25-hydroxy-2-methylene-vitamin D<sub>3</sub> and 3-desoxy-1α,25-dihydroxy-2-methylene-vitamin D<sub>3</sub> have been synthesized. Two alternative synthetic routes were devised for preparation of the required A-ring synthons, starting from the chiral compound derived from the (−)-quinic acid and, alternatively, from the commercially available achiral precursor, monoprotected 1,4-cyclohexanedione. The A-ring dienynes were coupled by the Sonogashira process with the respective C,D-ring fragments, the enol triflates derived from the protected (20<i>R</i>)- or (20<i>S</i>)-25-hydroxy Grundmann ketones. All four compounds possessed significant <i>in vivo</i> activity on bone calcium mobilization and intestinal calcium transport. The presence of a 2-methylene group increased intestinal calcium transport activity of all four analogues above that of the native hormone, 1α,25-dihydroxyvitamin D<sub>3</sub>. In contrast, bone calcium mobilization was equal to that produced by 1α,25-dihydroxyvitamin D<sub>3</sub> in compounds having a (20<i>S</i>)-configuration or diminished to one-tenth that of 1α,25-dihydroxyvitamin D<sub>3</sub> in compounds with a (20<i>R</i>)-configuration
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