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  1. Article: High-risk US International Travelers Seeking Pretravel Consultation During the COVID-19 Pandemic.

    Hyle, Emily P / Le, Mylinh H / Rao, Sowmya R / Mulroy, Nora M / Walker, Allison T / Ryan, Edward T / LaRocque, Regina C

    Open forum infectious diseases

    2022  Volume 9, Issue 8, Page(s) ofac399

    Abstract: Background: To assess the implications of coronavirus disease 2019 (COVID-19)-related travel disruptions, we compared demographics and travel-related circumstances of US travelers seeking pretravel consultation regarding international travel at US ... ...

    Abstract Background: To assess the implications of coronavirus disease 2019 (COVID-19)-related travel disruptions, we compared demographics and travel-related circumstances of US travelers seeking pretravel consultation regarding international travel at US Global TravEpiNet (GTEN) sites before and after the initiation of COVID-19 travel warnings.
    Methods: We analyzed data in the GTEN database regarding traveler demographics and travel-related circumstances with standard questionnaires in the pre-COVID-19 period (January-December 2019) and the COVID-19 period (April 2020-March 2021), excluding travelers from January to March 2020. We conducted descriptive analyses of differences in demographics, travel-related circumstances, routine and travel-related vaccinations, and medications.
    Results: Compared with 16 903 consultations in the pre-COVID-19 period, only 1564 consultations were recorded at GTEN sites during the COVID-19 period (90% reduction), with a greater proportion of travelers visiting friends and relatives (501/1564 [32%] vs 1525/16 903 [9%]), individuals traveling for >28 days (824/1564 [53%] vs 2522/16 903 [15%]), young children (6 mo-<6 y: 168/1564 [11%] vs 500/16 903 [3%]), and individuals traveling to Africa (1084/1564 [69%] vs 8049/16 903 [48%]). A smaller percentage of vaccine-eligible travelers received vaccines at pretravel consultations during the COVID-19 period than before, except for yellow fever and Japanese encephalitis vaccinations.
    Conclusions: Compared with the pre-COVID-19 period, a greater proportion of travelers during the COVID
    Language English
    Publishing date 2022-08-03
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2757767-3
    ISSN 2328-8957
    ISSN 2328-8957
    DOI 10.1093/ofid/ofac399
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: The Value-of-Information and Value-of-Implementation from Clinical Trials of Diagnostic Tests for HIV-Associated Tuberculosis: A Modeling Analysis.

    Pei, Pamela P / Fitzmaurice, Kieran P / Le, Mylinh H / Panella, Christopher / Jones, Michelle L / Pandya, Ankur / Horsburgh, C Robert / Freedberg, Kenneth A / Weinstein, Milton C / Paltiel, A David / Reddy, Krishna P

    MDM policy & practice

    2023  Volume 8, Issue 2, Page(s) 23814683231198873

    Abstract: Objectives.: Highlights: In conventional VOI analysis, it is assumed that the optimal decision will always be adopted even without a trial. This can potentially lead to an underestimation of the value of trials when adoption requires new clinical ... ...

    Abstract Objectives.
    Highlights: In conventional VOI analysis, it is assumed that the optimal decision will always be adopted even without a trial. This can potentially lead to an underestimation of the value of trials when adoption requires new clinical trial evidence. To capture the influence that a trial may have on decision makers' willingness to adopt the optimal decision, we also consider value-of-implementation (VOM), a metric quantifying the benefit of new study information in promoting wider adoption of the optimal strategy. The overall value-of-a-trial (VOT) includes both VOI and VOM.Our model-based analysis suggests that the information obtained from a trial of screening strategies for HIV-associated tuberculosis in South Africa would have no value, when measured using traditional methods of VOI assessment. A novel strategy, which includes the urine FujiLAM test, is optimal from a health economic standpoint but is underutilized. A trial would reduce uncertainties around downstream health outcomes but likely would not change the optimal decision. The high VOT (nearly $700 million over 5 y) lies solely in promoting uptake of FujiLAM, represented as VOM.Our results highlight the importance of employing a more comprehensive approach for evaluating prospective trials, as conventional VOI methods can vastly underestimate their value. Trialists and funders can and should assess the VOT metric instead when considering trial designs and costs. If VOI is low, the VOM and cost of a trial can be compared with the benefits and costs of other outreach programs to determine the most cost-effective way to improve uptake.
    Language English
    Publishing date 2023-09-22
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2861432-X
    ISSN 2381-4683 ; 2381-4683
    ISSN (online) 2381-4683
    ISSN 2381-4683
    DOI 10.1177/23814683231198873
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Brief Report: Chronic Placental Inflammation Among Women Living With HIV in Uganda.

    Bebell, Lisa M / Siedner, Mark J / Ngonzi, Joseph / Le, Mylinh H / Adong, Julian / Boatin, Adeline A / Bassett, Ingrid V / Roberts, Drucilla J

    Journal of acquired immune deficiency syndromes (1999)

    2020  Volume 85, Issue 3, Page(s) 320–324

    Abstract: Background: HIV-exposed, uninfected (HEU) children have poorer early-life outcomes than HIV-unexposed children. The determinants of adverse health outcomes among HEU children are poorly understood but may result from chronic placental inflammation (CPI). ...

    Abstract Background: HIV-exposed, uninfected (HEU) children have poorer early-life outcomes than HIV-unexposed children. The determinants of adverse health outcomes among HEU children are poorly understood but may result from chronic placental inflammation (CPI).
    Setting and methods: We enrolled 176 pregnant women living with HIV (WLWH) taking antiretroviral therapy in southwestern Uganda and 176 HIV-uninfected women to compare CPI prevalence by maternal HIV serostatus. Placentas were evaluated histologically by an expert pathologist for presence of CPI, defined as chronic chorioamnionitis, plasma cell deciduitis, villitis of unknown etiology, or chronic histiocytic intervillositis. Placentas with CPI were additionally immunostained with CD3 (T cell), CD20 (B cell), and CD68 (macrophage) markers to characterize inflammatory cell profiles.
    Results: WLWH and HIV-uninfected women had similar age, parity, and gestational age. Among WLWH, the mean CD4 count was 480 cells/µL, and 74% had an undetectable HIV viral load. We detected CPI in 16 (9%) placentas from WLWH and 24 (14%) from HIV-uninfected women (P = 0.18). Among WLWH, CPI was not associated with the CD4 count or HIV viral load. Villitis of unknown etiology was twice as common among HIV-uninfected women than WLWH (10 vs. 5%, P = 0.04). Among placentas with CPI, more villous inflammatory cells stained for CD3 or CD68 among HIV-uninfected women than WLWH (79% vs. 46%, P = 0.07).
    Conclusions: CPI prevalence did not differ by HIV serostatus. T-cell (CD3) and macrophage (CD68) markers were more prevalent in placental inflammatory cells from HIV-uninfected women. Our results do not support CPI as a leading mechanism for poor outcomes among HEU children in the antiretroviral therapy era.
    MeSH term(s) Adolescent ; Adult ; Biomarkers ; Cohort Studies ; Female ; HIV Infections/complications ; HIV Infections/epidemiology ; HIV-1 ; Humans ; Macrophages ; Placenta/pathology ; Placenta Diseases/epidemiology ; Placenta Diseases/etiology ; Placenta Diseases/pathology ; Pregnancy ; T-Lymphocytes ; Uganda/epidemiology ; Young Adult
    Chemical Substances Biomarkers
    Language English
    Publishing date 2020-10-15
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 645053-2
    ISSN 1944-7884 ; 1077-9450 ; 0897-5965 ; 0894-9255 ; 1525-4135
    ISSN (online) 1944-7884 ; 1077-9450
    ISSN 0897-5965 ; 0894-9255 ; 1525-4135
    DOI 10.1097/QAI.0000000000002446
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Cost-Effectiveness of Long-Acting Injectable HIV Preexposure Prophylaxis in the United States : A Cost-Effectiveness Analysis.

    Neilan, Anne M / Landovitz, Raphael J / Le, Mylinh H / Grinsztejn, Beatriz / Freedberg, Kenneth A / McCauley, Marybeth / Wattananimitgul, Nattanicha / Cohen, Myron S / Ciaranello, Andrea L / Clement, Meredith E / Reddy, Krishna P / Hyle, Emily P / Paltiel, A David / Walensky, Rochelle P

    Annals of internal medicine

    2022  Volume 175, Issue 4, Page(s) 479–489

    Abstract: Background: The HIV Prevention Trials Network (HPTN) 083 trial demonstrated the superiority of long-acting injectable cabotegravir (CAB-LA) compared with oral emtricitabine-tenofovir disoproxil fumarate (F/TDF) for HIV preexposure prophylaxis (PrEP).: ...

    Abstract Background: The HIV Prevention Trials Network (HPTN) 083 trial demonstrated the superiority of long-acting injectable cabotegravir (CAB-LA) compared with oral emtricitabine-tenofovir disoproxil fumarate (F/TDF) for HIV preexposure prophylaxis (PrEP).
    Objective: To identify the maximum price premium (that is, greatest possible price differential) that society should be willing to accept for the additional benefits of CAB-LA over tenofovir-based PrEP among men who have sex with men and transgender women (MSM/TGW) in the United States.
    Design: Simulation, cost-effectiveness analysis.
    Data sources: Trial and published data, including estimated HIV incidence (5.32, 1.33, and 0.26 per 100 person-years for off PrEP, generic F/TDF and branded emtricitabine-tenofovir alafenamide (F/TAF), and CAB-LA, respectively); 28% 6-year PrEP retention. Annual base-case drug costs: $360 and $16 800 for generic F/TDF and branded F/TAF. Fewer side effects with branded F/TAF versus generic F/TDF were assumed.
    Target population: 476 700 MSM/TGW at very high risk for HIV (VHR).
    Time horizon: 10 years.
    Perspective: Health care system.
    Intervention: CAB-LA versus generic F/TDF or branded F/TAF for HIV PrEP.
    Outcome measures: Primary transmissions, quality-adjusted life-years (QALYs), costs (2020 U.S. dollars), incremental cost-effectiveness ratios (ICERs; U.S. dollars per QALY), maximum price premium for CAB-LA versus tenofovir-based PrEP.
    Results of base-case analysis: Compared with generic F/TDF (or branded F/TAF), CAB-LA increased life expectancy by 28 000 QALYs (26 000 QALYs) among those at VHR. Branded F/TAF cost more per QALY gained than generic F/TDF compared with no PrEP. At 10 years, CAB-LA could achieve an ICER of at most $100 000 per QALY compared with generic F/TDF at a maximum price premium of $3700 per year over generic F/TDF (CAB-LA price <$4100 per year).
    Results of sensitivity analysis: In a PrEP-eligible population at high risk for HIV, rather than at VHR (
    Limitation: Uncertain clinical and economic benefits of averting future transmissions.
    Conclusion: Effective oral PrEP limits the additional price society should be willing to pay for CAB-LA.
    Primary funding source: FHI 360;
    MeSH term(s) Anti-HIV Agents/therapeutic use ; Child ; Cost-Benefit Analysis ; Drugs, Generic ; Emtricitabine/therapeutic use ; Female ; HIV Infections/drug therapy ; Homosexuality, Male ; Humans ; Male ; Pre-Exposure Prophylaxis ; Sexual and Gender Minorities ; Tenofovir/therapeutic use ; United States
    Chemical Substances Anti-HIV Agents ; Drugs, Generic ; Tenofovir (99YXE507IL) ; Emtricitabine (G70B4ETF4S)
    Language English
    Publishing date 2022-02-01
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 336-0
    ISSN 1539-3704 ; 0003-4819
    ISSN (online) 1539-3704
    ISSN 0003-4819
    DOI 10.7326/M21-1548
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Placental Decidual Arteriopathy and Vascular Endothelial Growth Factor A Expression Among Women With or Without Human Immunodeficiency Virus.

    Bebell, Lisa M / Parks, Kalynn / Le, Mylinh H / Ngonzi, Joseph / Adong, Julian / Boatin, Adeline A / Bassett, Ingrid V / Siedner, Mark J / Gernand, Alison D / Roberts, Drucilla J

    The Journal of infectious diseases

    2020  Volume 224, Issue 12 Suppl 2, Page(s) S694–S700

    Abstract: Background: Women with human immunodeficiency virus (HIV) (WHIV) are at higher risk of adverse birth outcomes. Proposed mechanisms for the increased risk include placental arteriopathy (vasculopathy) and maternal vascular malperfusion (MVM) due to ... ...

    Abstract Background: Women with human immunodeficiency virus (HIV) (WHIV) are at higher risk of adverse birth outcomes. Proposed mechanisms for the increased risk include placental arteriopathy (vasculopathy) and maternal vascular malperfusion (MVM) due to antiretroviral therapy and medical comorbid conditions. However, these features and their underlying pathophysiologic mechanisms have not been well characterized in WHIV.
    Methods: We performed gross and histologic examination and immunohistochemistry staining for vascular endothelial growth factor A (VEGF-A), a key angiogenic factor, on placentas from women with ≥1 MVM risk factors including: weight below the fifth percentile, histologic infarct or distal villous hypoplasia, nevirapine-based antiretroviral therapy, hypertension, and preeclampsia/eclampsia during pregnancy. We compared pathologic characteristics by maternal HIV serostatus.
    Results: Twenty-seven of 41 (placentas 66%) assessed for VEGF-A were from WHIV. Mean maternal age was 27 years. Among WHIV, median CD4 T-cell count was 440/µL, and the HIV viral load was undetectable in 74%. Of VEGF-A-stained placentas, both decidua and villous endothelium tissue layers were present in 36 (88%). VEGF-A was detected in 31 of 36 (86%) with decidua present, and 39 of 40 (98%) with villous endothelium present. There were no differences in VEGF-A presence in any tissue type by maternal HIV serostatus (P = .28 to >.99). MVM was more common in placentas selected for VEGF-A staining (51 vs 8%; P < .001).
    Conclusions: VEGF-A immunostaining was highly prevalent, and staining patterns did not differ by maternal HIV serostatus among those with MVM risk factors, indicating that the role of VEGF-A in placental vasculopathy may not differ by maternal HIV serostatus.
    MeSH term(s) Adult ; Female ; Fetal Growth Retardation ; HIV ; HIV Infections/complications ; HIV Infections/drug therapy ; Humans ; Infant, Small for Gestational Age ; Placenta/blood supply ; Placenta Diseases/pathology ; Pregnancy ; Vascular Diseases ; Vascular Endothelial Growth Factor A
    Chemical Substances Vascular Endothelial Growth Factor A
    Language English
    Publishing date 2020-10-01
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 3019-3
    ISSN 1537-6613 ; 0022-1899
    ISSN (online) 1537-6613
    ISSN 0022-1899
    DOI 10.1093/infdis/jiab201
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Clinical Outcomes, Costs, and Cost-effectiveness of Strategies for Adults Experiencing Sheltered Homelessness During the COVID-19 Pandemic.

    Baggett, Travis P / Scott, Justine A / Le, Mylinh H / Shebl, Fatma M / Panella, Christopher / Losina, Elena / Flanagan, Clare / Gaeta, Jessie M / Neilan, Anne / Hyle, Emily P / Mohareb, Amir / Reddy, Krishna P / Siedner, Mark J / Harling, Guy / Weinstein, Milton C / Ciaranello, Andrea / Kazemian, Pooyan / Freedberg, Kenneth A

    JAMA network open

    2020  Volume 3, Issue 12, Page(s) e2028195

    Abstract: Importance: Approximately 356 000 people stay in homeless shelters nightly in the United States. They have high risk of contracting coronavirus disease 2019 (COVID-19).: Objective: To assess the estimated clinical outcomes, costs, and cost- ... ...

    Abstract Importance: Approximately 356 000 people stay in homeless shelters nightly in the United States. They have high risk of contracting coronavirus disease 2019 (COVID-19).
    Objective: To assess the estimated clinical outcomes, costs, and cost-effectiveness associated with strategies for COVID-19 management among adults experiencing sheltered homelessness.
    Design, setting, and participants: This decision analytic model used a simulated cohort of 2258 adults residing in homeless shelters in Boston, Massachusetts. Cohort characteristics and costs were adapted from Boston Health Care for the Homeless Program. Disease progression, transmission, and outcomes data were taken from published literature and national databases. Surging, growing, and slowing epidemics (effective reproduction numbers [Re], 2.6, 1.3, and 0.9, respectively) were examined. Costs were from a health care sector perspective, and the time horizon was 4 months, from April to August 2020.
    Exposures: Daily symptom screening with polymerase chain reaction (PCR) testing of individuals with positive symptom screening results, universal PCR testing every 2 weeks, hospital-based COVID-19 care, alternative care sites (ACSs) for mild or moderate COVID-19, and temporary housing were each compared with no intervention.
    Main outcomes and measures: Cumulative infections and hospital-days, costs to the health care sector (US dollars), and cost-effectiveness, as incremental cost per case of COVID-19 prevented.
    Results: The simulated population of 2258 sheltered homeless adults had a mean (SD) age of 42.6 (9.04) years. Compared with no intervention, daily symptom screening with ACSs for pending tests or confirmed COVID-19 and mild or moderate disease was associated with 37% fewer infections (1954 vs 1239) and 46% lower costs ($6.10 million vs $3.27 million) at an Re of 2.6, 75% fewer infections (538 vs 137) and 72% lower costs ($1.46 million vs $0.41 million) at an Re of 1.3, and 51% fewer infections (174 vs 85) and 51% lower costs ($0.54 million vs $0.26 million) at an Re of 0.9. Adding PCR testing every 2 weeks was associated with a further decrease in infections; incremental cost per case prevented was $1000 at an Re of 2.6, $27 000 at an Re of 1.3, and $71 000 at an Re of 0.9. Temporary housing with PCR every 2 weeks was most effective but substantially more expensive than other options. Compared with no intervention, temporary housing with PCR every 2 weeks was associated with 81% fewer infections (376) and 542% higher costs ($39.12 million) at an Re of 2.6, 82% fewer infections (95) and 2568% higher costs ($38.97 million) at an Re of 1.3, and 59% fewer infections (71) and 7114% higher costs ($38.94 million) at an Re of 0.9. Results were sensitive to cost and sensitivity of PCR and ACS efficacy in preventing transmission.
    Conclusions and relevance: In this modeling study of simulated adults living in homeless shelters, daily symptom screening and ACSs were associated with fewer severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infections and decreased costs compared with no intervention. In a modeled surging epidemic, adding universal PCR testing every 2 weeks was associated with further decrease in SARS-CoV-2 infections at modest incremental cost and should be considered during future surges.
    MeSH term(s) COVID-19/economics ; COVID-19/epidemiology ; COVID-19/prevention & control ; COVID-19/transmission ; COVID-19 Nucleic Acid Testing/economics ; COVID-19 Nucleic Acid Testing/methods ; Cohort Studies ; Communicable Disease Control/economics ; Communicable Disease Control/methods ; Computer Simulation ; Cost-Benefit Analysis ; Decision Support Techniques ; Health Care Costs ; Homeless Persons ; Hospitalization/economics ; Housing/economics ; Humans ; Mass Screening/economics ; Mass Screening/methods ; SARS-CoV-2 ; Symptom Assessment/economics ; Symptom Assessment/methods ; United States/epidemiology
    Language English
    Publishing date 2020-12-01
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ISSN 2574-3805
    ISSN (online) 2574-3805
    DOI 10.1001/jamanetworkopen.2020.28195
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Clinical Outcomes, Costs, and Cost-effectiveness of Strategies for People Experiencing Sheltered Homelessness During the COVID-19 Pandemic.

    Baggett, Travis P / Scott, Justine A / Le, Mylinh H / Shebl, Fatma M / Panella, Christopher / Losina, Elena / Flanagan, Clare / Gaeta, Jessie M / Neilan, Anne / Hyle, Emily P / Mohareb, Amir / Reddy, Krishna P / Siedner, Mark J / Harling, Guy / Weinstein, Milton C / Ciaranello, Andrea / Kazemian, Pooyan / Freedberg, Kenneth A

    medRxiv : the preprint server for health sciences

    2020  

    Abstract: Importance: Approximately 356,000 people stay in homeless shelters nightly in the US. They are at high risk for COVID-19.: Objective: To assess clinical outcomes, costs, and cost-effectiveness of strategies for COVID-19 management among sheltered ... ...

    Abstract Importance: Approximately 356,000 people stay in homeless shelters nightly in the US. They are at high risk for COVID-19.
    Objective: To assess clinical outcomes, costs, and cost-effectiveness of strategies for COVID-19 management among sheltered homeless adults.
    Design: We developed a dynamic microsimulation model of COVID-19 in sheltered homeless adults in Boston, Massachusetts. We used cohort characteristics and costs from Boston Health Care for the Homeless Program. Disease progression, transmission, and outcomes data were from published literature and national databases. We examined surging, growing, and slowing epidemics (effective reproduction numbers [R
    Setting & participants: Simulated cohort of 2,258 adults residing in homeless shelters in Boston.
    Interventions: We assessed daily symptom screening with polymerase chain reaction (PCR) testing of screen-positives, universal PCR testing every 2 weeks, hospital-based COVID-19 care, alternate care sites [ACSs] for mild/moderate COVID-19, and temporary housing, each compared to no intervention.
    Main outcomes and measures: Cumulative infections and hospital-days, costs to the health care sector (US dollars), and cost-effectiveness, as incremental cost per case prevented of COVID-19.
    Results: We simulated a population of 2,258 sheltered homeless adults with mean age of 42.6 years. Compared to no intervention, daily symptom screening with ACSs for pending tests or confirmed COVID-19 and mild/moderate disease led to 37% fewer infections and 46% lower costs (R
    Conclusions & relevance: In this modeling study of simulated adults living in homeless shelters, daily symptom screening and ACSs were associated with fewer COVID-19 infections and decreased costs compared with no intervention. In a modeled surging epidemic, adding universal PCR testing every 2 weeks was associated with further decrease in COVID-19 infections at modest incremental cost and should be considered during future surges.
    Keywords covid19
    Language English
    Publishing date 2020-10-20
    Publishing country United States
    Document type Preprint
    DOI 10.1101/2020.08.07.20170498
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Management Strategies for People Experiencing Sheltered Homelessness during the COVID-19 Pandemic: Clinical Outcomes and Costs

    Freedberg, Kenneth A. / Baggett, Travis P. / Scott, Justine A. / Le, Mylinh H. / Shebl, Fatma M. / Panella, Christopher / Losina, Elena / Flanagan, Clare / Gaeta, Jessie / Neilan, Anne M. / Hyle, Emily P. / Mohareb, Amir M. / Reddy, Krishna P. / Siedner, Mark P. / Harling, Guy / Weinstein, Milton C. / Ciaranello, Andrea / Kazemian, Pooyan

    medRxiv

    Abstract: ABSTRACT Importance: Approximately 356,000 people stay in homeless shelters nightly in the US. These individuals are at high risk for COVID-19. Objective: To assess clinical outcomes, costs, and cost-effectiveness of strategies for COVID-19 prevention ... ...

    Abstract ABSTRACT Importance: Approximately 356,000 people stay in homeless shelters nightly in the US. These individuals are at high risk for COVID-19. Objective: To assess clinical outcomes, costs, and cost-effectiveness of strategies for COVID-19 prevention and management among sheltered homeless adults. Design: We developed a dynamic microsimulation model of COVID-19. We modeled sheltered homeless adults in Boston, Massachusetts, using cohort characteristics and costs from Boston Health Care for the Homeless Program. Disease progression, transmission, and clinical outcomes data were from published literature and national databases. We examined surging, growing, and slowing epidemics (effective reproduction numbers [Re] 2.6, 1.3, and 0.9). Costs were from a health care sector perspective; time horizon was 4 months. Setting & Participants: Simulated cohort of 2,258 adults residing in homeless shelters in Boston. Interventions: We assessed combinations of daily symptom screening with same-day polymerase chain reaction (PCR) testing of screen-positive individuals, universal PCR testing every 2 weeks, hospital-based COVID-19 care, alternate care sites [ACSs] for mild/moderate COVID-19 management, and moving people from shelters to temporary housing, compared to no intervention. Main Outcomes: Infections, hospital-days, costs, and cost-effectiveness. Results: Compared to no intervention, daily symptom screening with ACSs for those with pending tests or confirmed COVID-19 and mild/moderate disease leads to 37% fewer infections and 46% lower costs when Re=2.6, 75% fewer infections and 72% lower costs when Re=1.3, and 51% fewer infections and 51% lower costs when Re=0.9. Adding universal PCR testing every 2 weeks further decreases infections in all epidemic scenarios, with incremental cost per case prevented of $1,000 (Re=2.6), $27,000 (Re=1.3), and $71,000 (Re=0.9). In all scenarios, moving shelter residents to temporary housing with universal PCR testing every 2 weeks is most effective but substantially more costly than other options. Results are most sensitive to the cost and sensitivity of PCR testing and the efficacy of ACSs in preventing transmission. Conclusions & Relevance: Daily symptom screening and ACSs for sheltered homeless adults will substantially decrease COVID-19 cases and reduce costs compared to no intervention. In a surging epidemic, adding universal PCR testing every 2 weeks further decreases cases at modest incremental cost and should be considered. Keywords: Homelessness, COVID-19, cost-effectiveness analysis, simulation model
    Keywords covid19
    Language English
    Publishing date 2020-08-11
    Publisher Cold Spring Harbor Laboratory Press
    Document type Article ; Online
    DOI 10.1101/2020.08.07.20170498
    Database COVID19

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