25 research outputs found
The effects of COVID-19 on New York State’s Drug User Health Hubs and syringe service programs: a qualitative study
Abstract Background Syringe service programs (SSPs) deliver critical harm reduction services to people who inject drugs (PWID). Some SSPs in New York State received enhanced funding to provide additional services to combat opioid overdose fatalities. These SSPs, known as Drug User Health Hubs, provide buprenorphine for the treatment of opioid use disorder and other health-related services in addition to their syringe services. While the COVID-19 pandemic posed widespread challenges to the delivery of health services nationwide, the effect of the pandemic on SSPs uniquely impacts PWID. This study examines the impact of COVID-19 on service delivery of Drug User Health Hubs and stand-alone SSPs in New York State. Methods Between July 2020 and September 2020, we performed eleven semi-structured virtual interviews with staff from three Health Hub SSPs and three stand-alone SSPs. The interviews explored the effect of the COVID-19 pandemic on SSPs and their clients as well as the changes implemented in response. Interviews were recorded and transcribed. We performed content analysis to identify emerging themes from the data. Results Due to the COVID-19 pandemic, some SSPs temporarily shut down while others limited their hours of operation. SSPs modified their service delivery to maintain syringe services and naloxone distribution over other services such as STI and HCV testing. They virtualized components of their services, including telemedicine for the provision of buprenorphine. While SSPs found virtualization to be important for maintaining their services, it negatively impacted the intimate nature of client interactions. Participants also described the impact of the pandemic on the well-being of PWID, including isolation, worsened mental health challenges, and increased drug overdoses. Conclusions In response to the COVID-19 pandemic, SSPs demonstrated innovation, adaptability, and togetherness. Despite the challenges posed by the pandemic, SSPs continued to be key players in maintaining access to sterile supplies, buprenorphine, and other services for PWID. In addition to adapting to COVID-19 restrictions, they also responded to the dynamic needs of their clients. Sustainable funding and recognition of the critical role of SSPs in supporting PWID can help to improve outcomes for PWID
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Economic evaluations of establishing opioid overdose prevention centers in 12 North American cities: a systematic review
Overdose prevention centers (OPCs) provide a safe place where people can consume pre-obtained drugs under supervision so that a life-saving medical response can be provided quickly in the event of an overdose. OPCs are programs that are established in Canada and have recently become legally sanctioned in only a few United States jurisdictions.
We conducted a systematic review that summarizes and identifies gaps of economic evidence on establishing OPCs in North America to guide future expansion of OPCs.
We included 16 final studies that were evaluated with the CHEERS and Drummond checklists. Eight studies reported cost-effectiveness results (e.g., cost per overdose avoided or cost per QALY), with six also including cost-benefit; five reported only cost-benefit results, and three cost-offsets. Health outcomes primarily included overdose mortality outcomes and/or HIV/HCV infections averted. Most studies used mathematical modeling and projected OPC outcomes using the experience of a single facility in Vancouver, BC.
OPCs were found to be cost-saving, or to have favorable cost-effectiveness or cost-benefit ratios across all studies. Future studies should incorporate the experience of OPCs established in various settings and employ a greater diversity of modeling designs.
•Overdose prevention centers (OPCs) help to provide a safe space for people who use drugs and provide essential public health services that can help reduce opioid overdose fatalities. There is scant health economic evidence on OPCs and no systematic review.•This systematic review found the optimal number of OPCs varied within the studies, but all suggested opening at least 1 OPC as economically viable.•The findings from this review suggest that jurisdictions looking for strategies to stem the opioid overdose crisis should establish budgets for supporting OPCs in North America as they are projected to result in favorable economic and health impact
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Development and Calibration of a Dynamic HIV Transmission Model for 6 US Cities.
Background. Heterogeneity in HIV microepidemics across US cities necessitates locally oriented, combination implementation strategies to prioritize resources. We calibrated and validated a dynamic, compartmental HIV transmission model to establish a status quo treatment scenario, holding constant current levels of care for 6 US cities. Methods. Built off a comprehensive evidence synthesis, we adapted and extended a previously published model to replicate the transmission, progression, and clinical care for each microepidemic. We identified a common set of 17 calibration targets between 2012 and 2015 and used the Morris method to select the most influential parameters for calibration. We then applied the Nelder-Mead algorithm to iteratively calibrate the model to generate 2000 best-fitting parameter sets. Finally, model projections were internally validated with a series of robustness checks and externally validated against published estimates of HIV incidence, while the face validity of 25-year projections was assessed by a Scientific Advisory Committee (SAC). Results. We documented our process for model development, calibration, and validation to maximize its transparency and reproducibility. The projected outcomes demonstrated a good fit to calibration targets, with a mean goodness-of-fit ranging from 0.0174 (New York City [NYC]) to 0.0861 (Atlanta). Most of the incidence predictions were within the uncertainty range for 5 of the 6 cities (ranging from 21% [Miami] to 100% [NYC]), demonstrating good external validity. The face validity of the long-term projections was confirmed by our SAC, showing that the incidence would decrease or remain stable in Atlanta, Los Angeles, NYC, and Seattle while increasing in Baltimore and Miami. Discussion. This exercise provides a basis for assessing the incremental value of further investments in HIV combination implementation strategies tailored to urban HIV microepidemics
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Development and Calibration of a Dynamic HIV Transmission Model for 6 US Cities.
Background. Heterogeneity in HIV microepidemics across US cities necessitates locally oriented, combination implementation strategies to prioritize resources. We calibrated and validated a dynamic, compartmental HIV transmission model to establish a status quo treatment scenario, holding constant current levels of care for 6 US cities. Methods. Built off a comprehensive evidence synthesis, we adapted and extended a previously published model to replicate the transmission, progression, and clinical care for each microepidemic. We identified a common set of 17 calibration targets between 2012 and 2015 and used the Morris method to select the most influential parameters for calibration. We then applied the Nelder-Mead algorithm to iteratively calibrate the model to generate 2000 best-fitting parameter sets. Finally, model projections were internally validated with a series of robustness checks and externally validated against published estimates of HIV incidence, while the face validity of 25-year projections was assessed by a Scientific Advisory Committee (SAC). Results. We documented our process for model development, calibration, and validation to maximize its transparency and reproducibility. The projected outcomes demonstrated a good fit to calibration targets, with a mean goodness-of-fit ranging from 0.0174 (New York City [NYC]) to 0.0861 (Atlanta). Most of the incidence predictions were within the uncertainty range for 5 of the 6 cities (ranging from 21% [Miami] to 100% [NYC]), demonstrating good external validity. The face validity of the long-term projections was confirmed by our SAC, showing that the incidence would decrease or remain stable in Atlanta, Los Angeles, NYC, and Seattle while increasing in Baltimore and Miami. Discussion. This exercise provides a basis for assessing the incremental value of further investments in HIV combination implementation strategies tailored to urban HIV microepidemics
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Dissemination Science to Advance the Use of Simulation Modeling: Our Obligation Moving Forward
Can the 'Ending the HIV Epidemic' initiative transition the USA towards HIV/AIDS epidemic control?
: Using a dynamic HIV transmission model calibrated for six USA cities, we projected HIV incidence from 2020 to 2040 and estimated whether an established UNAIDS HIV epidemic control target could be met under ideal implementation of optimal combination strategies previously defined for each city. Four of six cities (Atlanta, Baltimore, New York City and Seattle) were projected to achieve epidemic control by 2040 and we identified differences in reaching epidemic control across racial/ethnic groups
Comparing projected fatal overdose outcomes and costs of strategies to expand community-based distribution of naloxone in Rhode Island.
Importance: In 2021, the state of Rhode Island distributed 10 000 additional naloxone kits compared with the prior year through partnerships with community-based organizations.
Question: What community-based naloxone distribution strategies would be the most effective and efficient in preventing opioid overdose deaths?
Findings: In this decision analytical model study evaluating the distribution of 10 000 additional naloxone kits annually in Rhode Island, the strategy focusing on distribution of naloxone according to geographic need to people who inject drugs resulted in the best outcomes at the lowest cost, averting an estimated 25.3% of opioid overdose deaths at an incremental cost of $27 312 per opioid overdose death averted.
Meaning: This study suggests that expanding naloxone distribution to people at highest risk for opioid overdose should be prioritized and that redirecting spatial distribution of naloxone to areas with the greatest need will improve both effectiveness and efficiency and reduce geospatial health inequality
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Ending the Epidemic in America Will Not Happen if the Status Quo Continues: Modeled Projections for Human Immunodeficiency Virus Incidence in 6 US Cities.
We estimated 10-year (2020-2030) trajectories for human immunodeficiency virus incidence in 6 US cities. Estimated incidence will only decrease in 2 of 6 cities, with the overall population-weighted incidence decreasing 3.1% (95% credible interval [CrI], -1.0% to 8.5%) by 2025, and 4.3% (95% CrI, -2.6% to 12.7%) by 2030 across cities. Targeted, context-specific combination implementation strategies will be necessary to meet the newly established national targets
Responding to a surge in overdose deaths: perspectives from US syringe services programs
Abstract Background US overdose deaths have reached a record high. Syringe services programs (SSPs) play a critical role in addressing this crisis by providing multiple services to people who use drugs (PWUD) that help prevent overdose death. This study examined the perspectives of leadership and staff from a geographically diverse sample of US SSPs on factors contributing to the overdose surge, their organization’s response, and ongoing barriers to preventing overdose death. Methods From 2/11/2021 to 4/23/2021, we conducted semi-structured interviews with leadership and staff from 27 SSPs sampled from the North American Syringe Exchange Network directory. Interviews were transcribed and qualitatively analyzed using a Rapid Assessment Process. Results Respondents reported that increased intentional and unintentional fentanyl use (both alone and combined with other substances) was a major driver of the overdose surge. They also described how the COVID-19 pandemic increased solitary drug use and led to abrupt increases in use due to life disruptions and worsened mental health among PWUD. In response to this surge, SSPs have increased naloxone distribution, including providing more doses per person and expanding distribution to people using non-opioid drugs. They are also adapting overdose prevention education to increase awareness of fentanyl risks, including for people using non-opioid drugs. Some are distributing fentanyl test strips, though a few respondents expressed doubts about strips’ effectiveness in reducing overdose harms. Some SSPs are expanding education and naloxone training/distribution in the broader community, beyond PWUD and their friends/family. Respondents described several ongoing barriers to preventing overdose death, including not reaching certain groups at risk of overdose (PWUD who do not inject, PWUD experiencing homelessness, and PWUD of color), an inconsistent naloxone supply and lack of access to intranasal naloxone in particular, inadequate funding, underestimates of overdoses, legal/policy barriers, and community stigma. Conclusions SSPs remain essential in preventing overdose deaths amid record numbers likely driven by increased fentanyl use and COVID-19-related impacts. These findings can inform efforts to support SSPs in this work. In the face of ongoing barriers, support for SSPs—including increased resources, political support, and community partnership—is urgently needed to address the worsening overdose crisis
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The potential epidemiological impact of COVID-19 on the HIV/AIDS epidemic and the cost-effectiveness of linked, opt-out HIV testing: A modeling study in six US cities
Widespread viral and serological testing for SARS-CoV-2 may present a unique opportunity to also test for HIV infection. We estimated the potential impact of adding linked, opt-out HIV testing alongside SARS-CoV-2 testing on HIV incidence and the cost-effectiveness of this strategy in six US cities.
Using a previously-calibrated dynamic HIV transmission model, we constructed three sets of scenarios for each city: (1) sustained current levels of HIV-related treatment and prevention services (status quo); (2) temporary disruptions in health services and changes in sexual and injection risk behaviours at discrete levels between 0%-50%; and (3) linked HIV and SARS-CoV-2 testing offered to 10%-90% of the adult population in addition to scenario (2). We estimated cumulative HIV infections between 2020-2025 and incremental cost-effectiveness ratios of linked HIV testing over 20 years.
In the absence of linked, opt-out HIV testing, we estimated a total of 16.5% decrease in HIV infections between 2020-2025 in the best-case scenario (50% reduction in risk behaviours and no service disruptions), and 9.0% increase in the worst-case scenario (no behavioural change and 50% reduction in service access). We estimated that HIV testing (offered at 10%-90% levels) could avert a total of 576-7,225 (1.6%-17.2%) new infections. The intervention would require an initial investment of 220.7M across cities; however, the intervention would ultimately result in savings in health care costs in each city.
A campaign in which HIV testing is linked with SARS-CoV-2 testing could substantially reduce HIV incidence and reduce direct and indirect health care costs attributable to HIV