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1.
Early Intervention in Psychiatry ; 17(Supplement 1):222, 2023.
Article in English | EMBASE | ID: covidwho-20242576

ABSTRACT

Background: Stratified care aims at matching the intensity and setting of mental health interventions to the needs of help-seeking Young People. In Australia, a 5-tiered system of mental health services is in operation. To aid patient triage to the most appropriate tier, a Decision Support Tool (DST) has been developed and is being rolled out nationally Methods: We analysed outcome data pre-and post-enrolment of about 1500 Young People (aged 16-25) referred to a Youth Mental Health Service delivering medium- and high intensity psychological treatment programs (tiers 3 and 4). We compared outcomes in both tiers during three 12-month periods: (a) in the inaugural phase of tier 4, prior to service saturation and stringent triaging, and prior to the COVID-19 pandemic (2019);(b) during the COVID-19 pandemic when all services were delivered remotely over phone- and video facilities, and when DST triaging was introduced (2020);(c) following return of face-to-face consultations, in a situation of service saturation and stringent DST triaging (2021) Findings: About 22% of Young People in the tier 3 program experienced reliable improvement according to their Kessler-10 (K-10) scale ratings, regardless of changing circumstances. In contrast, 40% of people in the tier 4 program reliably improved during the inaugural phase When circumstances and service delivery changed (COVID-19 restrictions service saturation, DST triaging), the rate of reliable improvement halved to about 20% Conclusion(s): Access to higher intensity psychological programs improves treatment outcomes for help-seeking Young People. However high-intensity services are more sensitive to external and service factors than less intense treatment models.

2.
Journal of Multiple-Valued Logic and Soft Computing ; 40(3-4):221-251, 2023.
Article in English | Web of Science | ID: covidwho-20241934

ABSTRACT

Due to lack of relevant information in many real-life circumstances, it is not acceptable for experts to exactly quantify their judgments with a crisp number. We investigate the aggregation approaches for "lin-ear Diophantine fuzzy numbers" (LDFNs) using Frank operations. We first extend the Frank t-conorm and t-norm (FTcTn) to linear Diophan-tine fuzzy environments and offer numerous new LDFN operations, we develop several new linear Diophantine fuzzy aggregation opera-tors (AOs), including the "linear Diophantine fuzzy Frank weighted averaging (LDFFWA) operator and the linear Diophantine fuzzy Frank weighted geometric (LDFFWG) operator". We also exhibit several properties of these AOs and investigate their relationships. The FTcTn has two major benefits. They work similarly to algebraic, Hamacher and Einstein t-conorms and t-norms (TcTn). Second, they include a feature that leads to a more adaptive and accurate aggregation pro-cess, making them more successful than other broad TcTn techniques. We also employ these operators to provide a strategy for dealing with "multi-criteria decision-making" (MCDM) with LDFNs. Furthermore, using the suggested AOs, a quantitative test case of the new carnivo-rous (NCOVID19) issue is presented as an implementation for expedi-ent decision-making. The goal of this numerical model is to illustrate the usefulness and feasibility of the AOs provided.

3.
Cmc-Computers Materials & Continua ; 74(2), 2023.
Article in English | Web of Science | ID: covidwho-20241775

ABSTRACT

Humankind is facing another deadliest pandemic of all times in history, caused by COVID-19. Apart from this challenging pandemic, World Health Organization (WHO) considers tuberculosis (TB) as a preeminent infectious disease due to its high infection rate. Generally, both TB and COVID-19 severely affect the lungs, thus hardening the job of medical practitioners who can often misidentify these diseases in the current situation. Therefore, the time of need calls for an immediate and meticulous automatic diagnostic tool that can accurately discriminate both diseases. As one of the preliminary smart health systems that examine three clinical states (COVID-19, TB, and normal cases), this study proposes an amalgam of image filtering, data-augmentation technique, transfer learning-based approach, and advanced deep-learning classifiers to effectively segregate these diseases. It first employed a generative adversarial network (GAN) and Crimmins speckle removal filter on X-ray images to overcome the issue of limited data and noise. Each pre-processed image is then converted into red, green, and blue (RGB) and Commission Internationale de l'Elcairage (CIE) color spaces from which deep fused features are formed by extracting relevant features using DenseNet121 and ResNet50. Each feature extractor extracts 1000 most useful features which are then fused and finally fed to two variants of recurrent neural network (RNN) classifiers for precise discrimination of three-clinical states. Comparative analysis showed that the proposed Bi-directional long-short-term-memory (Bi-LSTM) model dominated the long-short-term-memory (LSTM) network by attaining an overall accuracy of 98.22% for the three-class classification task, whereas LSTM hardly achieved 94.22% accuracy on the test dataset.

4.
Valori e Valutazioni ; (32)2023.
Article in Italian | ProQuest Central | ID: covidwho-20241328

ABSTRACT

In Italy, there is a clear disparity between cities and villages located in marginal areas. The progressive depopulation of inland areas and the urban polarization represent consolidated dynamics difficult to adapt to the new paradigm of sustainable development. The post-Covid-19 pandemic scenario offers the opportunity to redefine new parameters of intervention and new visions for the regeneration of villages in accord with the new challenges of decentralization and distancing. The project «Renaissance of villages for the revitalization of marginal areas» (2021) aims to create the conditions to repopulate and rebalance shrinking territories by establishing new centres of attractiveness. This project envisages the active involvement of municipalities to implement multi-sectoral analysis and spatial assessment approaches in planning processes. It intends to develop an interactive web dashboard for local authorities and spatial planners to create both a learning environment and a participative spatial decision support system for future local policy actions toward sustainable local development. This study presents the project's preliminary phase which aims to create the general framework of the web dashboard. A reconstruction of the village definition and the spatial selection of villages throughout Italy are presented as innovative aspects since the absence of an agreed definition of the village in the national and international level documents. Moreover, this study provides a quantitative spatial multivariate analysis cluster that analyzes, and groups Italian territories based on socioeconomic dynamics. The result of this analysis allows us to divide the territory into archetypes and to structure a framework that supports the definition of future scenarios for the regeneration of small urban areas considering the diversified needs and potential of the villages belonging to specific archetypes analyzed in the study.In Italia esiste una netta disparità tra città e borghi situati in aree marginali. Il progressivo spopolamento delle aree interne e la polarizzazione urbana rappresentano dinamiche consolidate poco affini ai paradigmi dello sviluppo sostenibile. Lo scenario post pandemico offre oggi l'opportunità di ridefinire nuovi parametri di inter- vento e nuove visioni per la rigenerazione dei borghi in accordo con le sfide imposte dal decentramento e dal distanziamento fisico. Il progetto «Rinascimento dei borghi per la rivitalizzazione delle aree marginali» (2021) mira a creare le condizioni per ripopolare e rigenerare i territori in contrazione. L'efficacia del progetto si fonda sul coinvolgimento attivo dei comuni nei processi di pianificazione e sull'integrazione in essi di analisi multisettoriali sperimentando un approccio basato sulla va- lutazione territoriale. Nell'ambito del progetto s'intende sviluppare un cruscotto web interattivo indirizzato alla pubblica amministrazione e ai pianificatori territoriali, al fine di creare un sistema partecipativo di supporto alle decisioni spaziali propedeutico allo sviluppo di scenari di sviluppo locale sostenibile. Questo studio presenta la fase preliminare del progetto in cui viene predisposta la struttura generale del cruscotto web. La ricerca e la ricostruzione della definizione di borgo, seguita dalla se- lezione spaziale dei borghi in tutta Italia, sono presentati come aspetti innovativi data l'attuale assenza di una definizione a livello nazionale e internazionale. Inoltre, questo studio fornisce un'analisi spaziale quantitativa multivariata che analizza e riunisce in cluster i territori italiani in base alle dinamiche socioeconomiche. Il risultato di questa analisi permette di suddividere il territorio in archetipi e di strutturare un quadro di riferimento che supporti la definizione di scenari futuri per la rigenerazione delle piccole aree urbane, considerando le esigenze e le potenzialità diversificate di ogni singolo borgo.

5.
Diabetic Medicine ; 40(Supplement 1):117-118, 2023.
Article in English | EMBASE | ID: covidwho-20236073

ABSTRACT

Background: Non-communicable diseases (NCDs) are rising in low middle income countries (LMICs) mainly driven by cardiometabolic disease (cardiovascular disease, diabetes, and hypertension). Aim(s): To develop a model of care, based on the chronic care model and collaborative care model, to improve care, outcomes and risk factor control for adults with cardio metabolic disease in LMICs in the Covid-19 era. This will contribute to the sustainable development goals of promoting good health, well-being and reducing inequalities. Method(s): Using an iterative consultative approach with healthcare workers, clients, and community leaders in Kenya, Ghana and Mozambique, we developed a model of care, which includes core features from chronic care models: self-management support;decision support;clinical information systems;delivery system design;and community linkages. Result(s): We produced a culturally adapted self-management education programme, a training package for educators delivering the programme, as well as a training package for community and healthcare professional leaders to increase awareness and self-care for cardiometabolic disease. Given the lack of a robust health information system, we are offering a global registry to provide real world data on patient management and quality of care for people with type 2 diabetes, hypertension, heart failure and chronic kidney disease. Conclusion(s): This intervention will be tested in a mixed-methods single-arm feasibility study in five sites across three African countries: Kenya, Ghana, Mozambique.

6.
Value in Health ; 26(6 Supplement):S240-S241, 2023.
Article in English | EMBASE | ID: covidwho-20235860

ABSTRACT

Objectives: To determine the impact of a pharmacy-based, clinical decision support (CDS) tool on herpes zoster (HZ) vaccine series completion during the initial months of the COVID-19 pandemic across the US. Method(s): In partnership with Kroger Health, a pharmacy CDS tool alerted staff of patients due for their second HZ vaccine dose, which had been accompanied previously by a timed text message. Once operations changed due to COVID-19, the system limited outreach to only patients visiting the pharmacy. Primary outcomes included the proportion of patients receiving both doses within a Kroger-owned pharmacy (n=2,293) and the number of days between doses, both within and across two 32-week periods before and after the pandemic hit the US. Generalized estimating equation-based (GEE) logistic and linear regression models determined differences in completion rates and time to completion. Result(s): During the observation period, 38,937 adults received at least one HZ vaccine dose, with 77.2% receiving both doses. Patients engaged by the CDS tool achieved 80.5% dose completion, versus 65.4% of those not intervened (p<0.0001), which was lower than in the period immediately before the pandemic (85.8%, p<0.0001). The dosing window averaged 119.4 days (SD: 26.91), which was the longest timeframe between doses since the HZ vaccine was launched and nearly one month longer than before the pandemic (93.0 days [SD: 28.02], p<0.0001). The odds of dose completion increased in areas of higher health literacy (OR: 1.01;95% CI: 1.007-1.014), but decreased in areas of higher poverty (OR: 0.992;95% CI: 0.988-0.995). Time to completion was slightly shorter (B=-0.04, p<0.05) in areas of higher health literacy. Conclusion(s): Despite changes in clinical processes, a nationwide community pharmacy was successful in completing HZ vaccine dose series for adults during the pandemic, suggesting that processes in community pharmacies can protect staff while remaining committed to providing preventive health services during public health crises.Copyright © 2023

7.
Journal of the Intensive Care Society ; 24(1 Supplement):103-104, 2023.
Article in English | EMBASE | ID: covidwho-20234364

ABSTRACT

Introduction It has long been felt that many contributions made by the ICU Pharmacy team, are not well showcased by the yearly regional network multi-speciality contributions audit. Themes specific to ICU are diluted amongst Trust and region wide data, and valuable learning for the multi-disciplinary team (MDT) is subsequently overlooked. Objective(s): The aims of this project were to: * Develop and pilot a MicrosoftTM Access © database for the ICU pharmacy team to record significant contributions. * Enable the production of reports to the ICU Quality & Safety board, to raise awareness, disseminate concerns, and influence future quality improvement projects. * Provide examples to contribute to the training of the whole MDT. * Generate evidence of team effectiveness and encourage further investment. * Provide team members with a means to recall contributions, for revalidation, appraisal, prescribing re-affirmation and framework mapping. Method(s): * A database was built with a user-friendly data-entry form to prevent overwriting. Fields were agreed with peers who would be using the database. * The team were invited to voluntarily enter their contributions which they thought added value and provided useful learning. * The pilot phase ceased with the emergence of the Omicron SARS-CoV-2 variant, due to staffing pressures and surge planning. Result(s): * Between 12/07/2021 and 25/11/2021, a total of 211 contributions were recorded. * Pharmacists entered 88.6% and a single technician entered 11.4% of these. * Independent Prescribing was utilised in 52.13% of contributions, and deprescribing in 25.12%. * Figure 1 demonstrates the contributions by drug group * The top 5 drugs associated with contributions were: ? Dalteparin ? Vancomycin ? Voriconazole ? Meropenem ? Co-trimoxazole * Treatment optimisation was an outcome for 76.3% of all contributions. Figure 2 stratifies these by type. Contributions. * Drug suitability was a cause for intervention in 12.8% of all contributions, encompassing allergies, contraindications, cautions and interactions and routes. * Medicines reconciliation accounted for 17.54% of all contributions, which almost half were Technician led. Admission was the most common stage to intervene (81.08%), followed by transcription. * Of all contributions, 37.91% were classified as patient safety incidents. Reassuringly 76.25% of these were prevented by the Pharmacy team. Themes have been extracted from these incidents and are presented in Table 1. Conclusion(s): PROTECTED-UK1 demonstrated the value pharmacists contribute to the quality and safety of patient care on ICU. Studies of similar quality and scale including Pharmacy Technicians are lacking, but even in this pilot study, it is evident how important their input is. Independent prescribing is a fundamental and well utilised part of our ICU Pharmacist skillset, supporting the GPICS2 recommendation that ICU pharmacists should be encouraged to become prescribers. Compiling a team interventions database is a useful tool to highlight local priority areas for guideline development;training;and ensuring that appropriate decision support is built into electronic prescribing systems. To improve the usefulness of the data, further stratification of contributions according to the Eadon Criteria3 may be worthwhile, to expand its use as a medication safety thermometer for ICU.

8.
GeoJournal ; : 1-15, 2022 Oct 27.
Article in English | MEDLINE | ID: covidwho-20241922

ABSTRACT

The global spread of the coronavirus has generated one of the most critical circumstances forcing healthcare systems to deal with it everywhere in the world. The complexity of crisis management, particularly in Iran, the unfamiliarity of the disease, and a lack of expertise, provided the foundation for researchers and implementers to propose innovative solutions. One of the most important obstacles in COVID-19 crisis management is the lack of information and the need for immediate and real-time data on the situation and appropriate solutions. Such complex problems fall into the category of semi-structured problems. In this respect, decision support systems use people's mental resources with computer capabilities to improve the quality of decisions. In synergetic situations, for instance, healthcare domains cooperating with spatial solutions, coming to a decision needs logical reasoning and high-level analysis. Therefore, it is necessary to add rich semantics to different classes of involved data, find their relationships, and conceptualize the knowledge domain. For the COVID-19 case in this study, ontologies allow for querying over such established relationships to find related medical solutions based on description logic. Bringing such capabilities to a spatial decision support system (SDSS) can help with better control of the COVID-19 pandemic. Ontology-based SDSS solution has been developed in this study due to the complexity of information related to coronavirus and its geospatial aspect in the city of Tehran. According to the results, ontology can rationalize different classes and properties about the user's clinical information, various medical centers, and users' priority. Then, based on the user's requests in a web-based SDSS, the system focuses on the inference made, advises the users on choosing the most related medical center, and navigates the user on a map. The ontology's capacity for reasoning, overcoming knowledge gaps, and combining geographic and descriptive criteria to choose a medical center all contributed to promising outcomes and the satisfaction of the sample community of evaluators.

9.
Biomed Mater Eng ; 2023 May 22.
Article in English | MEDLINE | ID: covidwho-20236529

ABSTRACT

BACKGROUND: The COVID-19 pandemic has resulted in increased psychological pressure on mental health since 2019. The resulting anxiety and stress have permeated every aspect of life during confinement. OBJECTIVE: To provide psychologists with an unbiased measure that can aid in the preliminary diagnosis of anxiety disorders and be used as an initial treatment in cognitive-behavioral therapy, this article introduces automated recognition of three levels of anxiety. METHODS: Anxiety was elicited by exposing participants to virtual environments inspired by social situations in reference to the Liebowitz social anxiety scale. Relevant parameters, such as heart rate variability and vasoconstriction were derived from the measurement of the blood volume pulse (BVP) signal. RESULTS: A long short-term memory architecture achieved an accuracy of approximately 98% on the training and test set. CONCLUSION: The generated model allowed for careful study of the state of seven phobic participants during virtual reality exposure (VRE).

10.
ACM Transactions on Computing for Healthcare ; 3(4) (no pagination), 2022.
Article in English | EMBASE | ID: covidwho-2315801

ABSTRACT

Federated learning is the process of developing machine learning models over datasets distributed across data centers such as hospitals, clinical research labs, and mobile devices while preventing data leakage. This survey examines previous research and studies on federated learning in the healthcare sector across a range of use cases and applications. Our survey shows what challenges, methods, and applications a practitioner should be aware of in the topic of federated learning. This paper aims to lay out existing research and list the possibilities of federated learning for healthcare industries.© 2022 Copyright held by the owner/author(s).

11.
16th IEEE International Conference on Signal-Image Technology and Internet-Based Systems, SITIS 2022 ; : 553-560, 2022.
Article in English | Scopus | ID: covidwho-2315557

ABSTRACT

The combination of pervasive sensing and multimedia understanding with the advances in communications makes it possible to conceive platforms of services for providing telehealth solutions responding to the current needs of society. The recent outbreak has indeed posed several concerns on the management of patients at home, urging to devise complex pathways to address the Severe Acute Respiratory Syndrome (SARS) in combination with the usual diseases of an increasingly elder population. In this paper, we present TiAssisto, a project aiming to design, develop, and validate an innovative and intelligent platform of services, having as its main objective to assist both Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) multi-pathological patients and healthcare professionals. This is achieved by researching and validating new methods to improve their lives and reduce avoidable hospitalisations. TiAssisto features telehealth and telemedicine solutions to enable high-quality standards treatments based on Information and Communication Technologies (ICT), Artificial Intelligence (AI) and Machine Learning (ML). Three hundred patients are involved in our study: one half using our telehealth platform, while the other half participate as a control group for a correct validation. The developed AI models and the Decision Support System assist General Practitioners (GPs) and other healthcare professionals in order to help them in their diagnosis, by providing suggestions and pointing out possible presence or absence of signs that can be related to pathologies. Deep learning techniques are also used to detect the absence or presence of specific signs in lung ultrasound images. © 2022 IEEE.

12.
Current Bioinformatics ; 18(3):221-231, 2023.
Article in English | EMBASE | ID: covidwho-2312823

ABSTRACT

A fundamental challenge in the fight against COVID-19 is the development of reliable and accurate tools to predict disease progression in a patient. This information can be extremely useful in distinguishing hospitalized patients at higher risk for needing UCI from patients with low severity. How SARS-CoV-2 infection will evolve is still unclear. Method(s): A novel pipeline was developed that can integrate RNA-Seq data from different databases to obtain a genetic biomarker COVID-19 severity index using an artificial intelligence algorithm. Our pipeline ensures robustness through multiple cross-validation processes in different steps. Result(s): CD93, RPS24, PSCA, and CD300E were identified as COVID-19 severity gene signatures. Furthermore, using the obtained gene signature, an effective multi-class classifier capable of discrimi-nating between control, outpatient, inpatient, and ICU COVID-19 patients was optimized, achieving an accuracy of 97.5%. Conclusion(s): In summary, during this research, a new intelligent pipeline was implemented to develop a specific gene signature that can detect the severity of patients suffering COVID-19. Our approach to clinical decision support systems achieved excellent results, even when processing unseen samples. Our system can be of great clinical utility for the strategy of planning, organizing and managing human and material resources, as well as for automatically classifying the severity of patients affected by COVID-19.Copyright © 2023 Bentham Science Publishers.

13.
Transp Res Rec ; 2677(4): 656-673, 2023 Apr.
Article in English | MEDLINE | ID: covidwho-2313339

ABSTRACT

The COVID-19 pandemic has deeply affected the airline industry, as it has many sectors, and has created tremendous financial pressure on companies. Flight bans, new regulations, and restrictions increase consumer complaints and are emerging as a big problem for airline companies. Understanding the main reasons triggering complaints and eliminating service failures in the airline industry will be a vital strategic priority for businesses, while reviewing the dimensions of service quality during the COVID-19 pandemic provides an excellent opportunity for academic literature. In this study, 10,594 complaints against two major airlines that offer full-service and low-cost options were analyzed with the Latent Dirichlet Allocation algorithm to categorize them by essential topics. Results provide valuable information for both. Furthermore, this study fills the gap in the existing literature by proposing a decision support system to identify significant service failures through passenger complaints in the airline industry utilizing e-complaints during an unusual situation such as the COVID-19 pandemic.

14.
Stud Health Technol Inform ; 301: 89-95, 2023 May 02.
Article in English | MEDLINE | ID: covidwho-2313088

ABSTRACT

The COVID-19 pandemic brought forth rapid responses and changes in the acceptance of digital health interventions. Digital solutions appear increasingly promising, yet little is known about the peculiarities in the psychiatric context, contrary to other medical branches. The project MeHealth aimed at disclosing specific needs and reservations of patients and professionals in the psychiatric field. Apprehensions towards technology were found to be held on both sides. Cooperating with a psychiatric hospital in Austria, through a transdisciplinary research approach including focus groups and workshops, a framework for an integrated Digital Mental Health Tool was established. The findings leading to the framework show a strong need for patient-empowerment, enhancement of trust in technology and the need for multi-stakeholder cooperation. Digital tools should be designed to enhance the continuity of care and information exchange on behalf of the patient. Learnings were gained, which prove recommendable for future R&D projects on digitalization in the delicate field of psychiatry.


Subject(s)
COVID-19 , Research Report , Humans , Mental Health , Pandemics , Austria
15.
Advances and New Trends in Environmental Informatics: A Bogeyman or Saviour for the Un Sustainability Goals? ; : 135-152, 2022.
Article in English | Web of Science | ID: covidwho-2308184

ABSTRACT

Human mobility has been recognized as one of the critical factors determining the spread of contagious diseases, such as SARS-CoV-2, a highly contagious and elusive virus. This virus disrupts the normal lives of more than half of the global population in one way or another, claiming the lives of millions. In such cases, mobility should be managed via the imposition of certain policies. This proposed study presents a newly developed spatial platform aimed at simulating and mapping the spread of infectious diseases and mobility patterns under different scenarios based on different epidemiological models. In addition to the "business as usual" scenario, other response scenarios can be defined to reflect real-world situations, taking into consideration various parameters, including the daily rise in infections and deaths, among others. The developed system provides insights to decision-makers about strategies to be implemented and measures for controlling the spread of the virus.

16.
Aims Bioengineering ; 10(1):27-52, 2023.
Article in English | Web of Science | ID: covidwho-2307501

ABSTRACT

Objective: The objective of this study was to provide an overview of Decision Support Systems (DSS) applied in healthcare used for diagnosis, monitoring, prediction and recommendation in medicine. Methods: We conducted a systematic review using PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analysis) guidelines of articles published until September 2022 from PubMed, Cochrane, Scopus and web of science databases. We used KH coder to analyze included research. Then we categorized decision support systems based on their types and medical applications. Results: The search strategy provided a total of 1605 articles in the studied period. Of these, 231 articles were included in this qualitative review. This research was classified into 4 categories based on the DSS type used in healthcare: Alert Systems, Monitoring Systems, Recommendation Systems and Prediction Systems. Under each category, domain applications were specified according to the disease the system was applied to. Conclusion: In this systematic review, we collected CDSS studies that use ML techniques to provide insights into different CDSS types. We highlighted the importance of ML to support physicians in clinical decision-making and improving healthcare according to their purposes.

17.
Decis Support Syst ; : 113983, 2023 Apr 24.
Article in English | MEDLINE | ID: covidwho-2309231

ABSTRACT

Managing an extreme event like a healthcare disaster requires accurate information about the event's circumstances to comprehend the full consequences of acting. However, information quality is rarely optimal since it takes time to determine the information of relevance. The COVID-19 pandemic showed that even official data sources are far from optimal since they suffer from reporting delays that slow decision-making. To support decision-makers with timely information, we utilize data from online social networks to propose an adaptable information extraction solution to create indices helping to forecast COVID-19 case numbers and hospitalization rates. We show that combining heterogeneous data sources like Twitter and Reddit can leverage these sources' inherent complementarity and yield better predictions than those using a single data source alone. We further show that the predictions run ahead of the official COVID-19 incidences by up to 14 days. Additionally, we highlight the importance of model adjustments whenever new information becomes available or the underlying data changes by observing distinct changes in the presence of specific symptoms on Reddit.

18.
European Respiratory Journal ; 60(Supplement 66):4, 2022.
Article in English | EMBASE | ID: covidwho-2293813

ABSTRACT

Background: The association between COVID-19 infection and the cardiovascular system has been well described. Isolation precautions limit the use of formal echocardiography in this setting. Artificial intelligence (AI) utilization using a hand-held device in these patients can be a reliable tool for left ventricular ejection fraction (LVEF) assessment. Aim(s): To prospectively investigate the accuracy of AI-base tool for LVEF assessment using a hand-held echocardiogram in patients with COVID-19. Method(s): From April-28 through July-26, 2020, consecutive patients with COVID-19 underwent a real-time LVEF assessment within 48-h of admission using a hand-held echocardiogram evaluation (Vscan Extend) equipped with LVivoEF, an AI-based tool that automatically evaluates LVEF. The examinations were further analyzed off-line by a blinded fellowshiptrained echocardiographer for LVEF as a gold standard. Result(s): Among 42 patients, 21 (50%) were male (aged 53.3+/-17.8 years, mean BMI 27.6+/-5.1 kg/m2). Seven (16.7%) patients couldn't turn on their left side and three (7.1%) couldn't maintain effective communication. The mean length of each echocardiogram study was 6.8+/-2.2 minutes, battery usage was 13.4+/-4.9%, and mean operator-to-patient proximity was 64.5+/-9.3 cm. A fair to good correlation was demonstrated between the AI and the echocardiographer LVEF assessment (Pearson's correlation of 0.691, p<0.001). An almost perfect agreement was demonstrated between the AI and the echocardiographer for LVEF using a threshold of 45% (kappa=0.806, p<0.001). The sensitivity of focused echocardiogram for 45% LVEF threshold is 85.7%, specificity is 97.1% with a PPV of 85.7% and NPV of 97.1%. Conclusion(s): An AI-based algorithm incorporated into an existing handheld echocardiogram device can be reliably utilized as a decision support tool for automatic real-time LVEF assessment among COVID-19 patients.

19.
Allergy: European Journal of Allergy and Clinical Immunology ; 78(Supplement 111):343, 2023.
Article in English | EMBASE | ID: covidwho-2306295

ABSTRACT

Background: Recovery from coronavirus disease 19 (COVID-19) is a gradual process that depends on the disease severity. Immunologic changes that precede and relate clinical symptoms may predict the course of COVID-19 and final outcome. Our goal was to determine prognostic markers of COVID-19 improvement. Method(s): The study included hospitalized patients from the ages 31-72 with moderate to severe COVID-19. All biomarkers were assessed at three checkpoints starting from the first day of hospitalization (day 0), continuing on day 8, and between 40-50 day. Luminex xMAP technology and the Bio-Plex Pro Human Cytokine 17-plex assay was used for quantitative evaluation cytokines and chemokines in peripheral blood of COVID-19 patients. The comparative study was done in combination with clinical data. Univariate and multivariate analyses of data were delivered. Finally, a fuzzy logic model for decision support was proposed and validated for explored data. Result(s): Macrophage inflammatory protein-1beta (MIP1b) was inversely related to COVID-19 evolution. MIP1b significantly higher on day 8 compared to day 0 (p < 0.0001) correlated with clinical improvement and predicted a successful course of the disease. It was also associated with the significant increase in TNF-alpha (p = 0.03), and decrease in IL-10 (p < 0.0001), and IL-6 (p = 0.01). The increase in MIP1b on day 8 correlated positively with eosinophil and lymphocytes counts and negatively with inflammatory mediators (ferritin, procalcitonin, fibrinogen, CRP). Moderately positive correlation between MIP-1b and TNF-alpha was noted, in parallel. Tested the statistical and machine learning predictors exhibited sensitivity to MIP1b input, improving the ROC curve compared to the classification models trained without MIP1b. Conclusion(s): This finding next to already known indicators such as IL-6, eosinophil and lymphocytes counts, highlight a role of MIP1b as a marker of good prognosis in COVID-19 and provide a novel insight into this as a potential diagnostic and therapeutic target.

20.
International Entrepreneurship and Management Journal ; 2023.
Article in English | Scopus | ID: covidwho-2303815

ABSTRACT

While previous studies on social entrepreneurial intention have evolved more from emotional and cognitive features, far less attention has been devoted to sociocultural factors, especially during the COVID-19 pandemic. Relying on planned behavior theory and entrepreneurial event model, this study investigates how the university's environment and support system affect the social entrepreneurial intention of university students, particularly during the COVID-19 pandemic. Data were collected from 530 business students from Bahrain, the Maldives, and Morocco via an online questionnaire and analyzed using partial least square (PLS-SEM) methodology. The findings show that empathy and self-efficacity, which are most responsive to the university's environment and support system, significantly impact social entrepreneurial intention. However, no evidence has been found on how gender diversity impacts the university's environment and support system to raise social entrepreneurial intention. Finally, this paper highlights the relevance of considering sociocultural factors, namely the university's environment and support system, for policymakers, especially those involved in higher education, to boost students' social entrepreneurial intention, particularly in developing countries. © 2023, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.

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