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  • 1
    In: International Journal of Epidemiology, Oxford University Press (OUP), Vol. 52, No. 2 ( 2023-04-19), p. 355-376
    Kurzfassung: We describe demographic features, treatments and clinical outcomes in the International Severe Acute Respiratory and emerging Infection Consortium (ISARIC) COVID-19 cohort, one of the world's largest international, standardized data sets concerning hospitalized patients. Methods The data set analysed includes COVID-19 patients hospitalized between January 2020 and January 2022 in 52 countries. We investigated how symptoms on admission, co-morbidities, risk factors and treatments varied by age, sex and other characteristics. We used Cox regression models to investigate associations between demographics, symptoms, co-morbidities and other factors with risk of death, admission to an intensive care unit (ICU) and invasive mechanical ventilation (IMV). Results Data were available for 689 572 patients with laboratory-confirmed (91.1%) or clinically diagnosed (8.9%) SARS-CoV-2 infection from 52 countries. Age [adjusted hazard ratio per 10 years 1.49 (95% CI 1.48, 1.49)] and male sex [1.23 (1.21, 1.24)] were associated with a higher risk of death. Rates of admission to an ICU and use of IMV increased with age up to age 60 years then dropped. Symptoms, co-morbidities and treatments varied by age and had varied associations with clinical outcomes. The case-fatality ratio varied by country partly due to differences in the clinical characteristics of recruited patients and was on average 21.5%. Conclusions Age was the strongest determinant of risk of death, with a ∼30-fold difference between the oldest and youngest groups; each of the co-morbidities included was associated with up to an almost 2-fold increase in risk. Smoking and obesity were also associated with a higher risk of death. The size of our international database and the standardized data collection method make this study a comprehensive international description of COVID-19 clinical features. Our findings may inform strategies that involve prioritization of patients hospitalized with COVID-19 who have a higher risk of death.
    Materialart: Online-Ressource
    ISSN: 0300-5771 , 1464-3685
    RVK:
    Sprache: Englisch
    Verlag: Oxford University Press (OUP)
    Publikationsdatum: 2023
    ZDB Id: 1494592-7
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 2
    In: Brain, Oxford University Press (OUP), Vol. 146, No. 4 ( 2023-04-19), p. 1648-1661
    Kurzfassung: Different neurological manifestations of coronavirus disease 2019 (COVID-19) in adults and children and their impact have not been well characterized. We aimed to determine the prevalence of neurological manifestations and in-hospital complications among hospitalized COVID-19 patients and ascertain differences between adults and children. We conducted a prospective multicentre observational study using the International Severe Acute Respiratory and emerging Infection Consortium (ISARIC) cohort across 1507 sites worldwide from 30 January 2020 to 25 May 2021. Analyses of neurological manifestations and neurological complications considered unadjusted prevalence estimates for predefined patient subgroups, and adjusted estimates as a function of patient age and time of hospitalization using generalized linear models. Overall, 161 239 patients (158 267 adults; 2972 children) hospitalized with COVID-19 and assessed for neurological manifestations and complications were included. In adults and children, the most frequent neurological manifestations at admission were fatigue (adults: 37.4%; children: 20.4%), altered consciousness (20.9%; 6.8%), myalgia (16.9%; 7.6%), dysgeusia (7.4%; 1.9%), anosmia (6.0%; 2.2%) and seizure (1.1%; 5.2%). In adults, the most frequent in-hospital neurological complications were stroke (1.5%), seizure (1%) and CNS infection (0.2%). Each occurred more frequently in intensive care unit (ICU) than in non-ICU patients. In children, seizure was the only neurological complication to occur more frequently in ICU versus non-ICU (7.1% versus 2.3%, P & lt; 0.001). Stroke prevalence increased with increasing age, while CNS infection and seizure steadily decreased with age. There was a dramatic decrease in stroke over time during the pandemic. Hypertension, chronic neurological disease and the use of extracorporeal membrane oxygenation were associated with increased risk of stroke. Altered consciousness was associated with CNS infection, seizure and stroke. All in-hospital neurological complications were associated with increased odds of death. The likelihood of death rose with increasing age, especially after 25 years of age. In conclusion, adults and children have different neurological manifestations and in-hospital complications associated with COVID-19. Stroke risk increased with increasing age, while CNS infection and seizure risk decreased with age.
    Materialart: Online-Ressource
    ISSN: 0006-8950 , 1460-2156
    RVK:
    Sprache: Englisch
    Verlag: Oxford University Press (OUP)
    Publikationsdatum: 2023
    ZDB Id: 1474117-9
    SSG: 12
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 3
    In: Brain Communications, Oxford University Press (OUP)
    Kurzfassung: Although it is known that COVID-19 can present with a range of neurological manifestations and in-hospital complications, sparse data exist if these initial neurological symptoms of COVID-19 are closely associated with post-acute neurological sequelae of SARS-CoV-2 (PANSC) and if female versus male sex impacts the symptom resolution. In this international, multicentre, prospective observational study across 407 sites from 15 countries (January/30th/2020-April/30th/2022), we report the prevalence and risk factors of PANSC among hospitalized adults and investigate the differences between males and females on neurological symptom resolution over time. PANSC included altered consciousness/confusion, fatigue/malaise, anosmia, dysgeusia, and muscle aches/joint pain, which were collected at the index hospitalization and during the follow-up assessments. The analysis considered time to resolution of individual and all neurological symptoms. Resulting times were modeled by Weibull regression, assuming mixed-case interval censoring, with sex and age included as covariates. Model results were summarized as cumulative probability functions and age- and sex-adjusted median times to resolution. We included 6,862 hospitalized adults with COVID-19, who had follow-up assessments. The median age of participants was 57 years (39.2% females). Males and females had similar baseline characteristics except that more males (vs. females) were admitted to Intensive Care Unit (30.5% vs. 20.3%) and received mechanical ventilation (17.2% vs. 11.8%). Approximately 70% of patients had multiple neurological symptoms at the first follow-up (median=102 days). Fatigue (49.9%) and myalgia/arthralgia (45.2%) were the most prevalent symptoms of PANSC at the initial follow-up. Reported prevalence in females was generally higher (vs. males) for all symptoms. At 12 months, anosmia and dysgeusia were resolved in most patients, though fatigue, altered consciousness, and myalgia remained unresolved in & gt;10% of the cohort. Females had a longer time to resolution (5.2 vs. 3.4 months) of neurological symptoms at follow-up for those with more than one neurological symptom. In multivariable analysis, males were associated with a shorter time to resolution of symptoms (Hazard Ratio=1.53; 95% Confidence Interval =1.39–1.69). Intensive Care Unit admission was associated with a longer time to the resolution of symptoms (Hazard Ratio =0.68; 95% Confidence Interval=0.60–0.77). Post-discharge stroke was uncommon (0.3% in females; 0.5% in males). Despite the methodological challenges of survey data, this international multicentre prospective cohort study demonstrates that PANSC following index hospitalization is high. Symptom prevalence was higher and took longer to resolve in females than in males. This supports that whilst males were sicker during acute illness, females were disproportionately affected by PANSC.
    Materialart: Online-Ressource
    ISSN: 2632-1297
    Sprache: Englisch
    Verlag: Oxford University Press (OUP)
    Publikationsdatum: 2024
    ZDB Id: 3020013-1
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 4
    In: Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP), Vol. 501, No. 3 ( 2021-01-12), p. 3272-3288
    Kurzfassung: fink is a broker designed to enable science with large time-domain alert streams such as the one from the upcoming Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST). It exhibits traditional astronomy broker features such as automatized ingestion, annotation, selection, and redistribution of promising alerts for transient science. It is also designed to go beyond traditional broker features by providing real-time transient classification that is continuously improved by using state-of-the-art deep learning and adaptive learning techniques. These evolving added values will enable more accurate scientific output from LSST photometric data for diverse science cases while also leading to a higher incidence of new discoveries which shall accompany the evolution of the survey. In this paper, we introduce fink, its science motivation, architecture, and current status including first science verification cases using the Zwicky Transient Facility alert stream.
    Materialart: Online-Ressource
    ISSN: 0035-8711 , 1365-2966
    Sprache: Englisch
    Verlag: Oxford University Press (OUP)
    Publikationsdatum: 2021
    ZDB Id: 2016084-7
    SSG: 16,12
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 5
    Online-Ressource
    Online-Ressource
    Oxford University Press (OUP) ; 2002
    In:  FEMS Immunology & Medical Microbiology Vol. 32, No. 2 ( 2002-01), p. 125-131
    In: FEMS Immunology & Medical Microbiology, Oxford University Press (OUP), Vol. 32, No. 2 ( 2002-01), p. 125-131
    Materialart: Online-Ressource
    ISSN: 0928-8244 , 1574-695X
    URL: Issue
    Sprache: Englisch
    Verlag: Oxford University Press (OUP)
    Publikationsdatum: 2002
    ZDB Id: 2693712-8
    ZDB Id: 1500464-8
    SSG: 12
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 6
    Online-Ressource
    Online-Ressource
    Oxford University Press (OUP) ; 2001
    In:  BioScience Vol. 51, No. 9 ( 2001), p. 735-
    In: BioScience, Oxford University Press (OUP), Vol. 51, No. 9 ( 2001), p. 735-
    Materialart: Online-Ressource
    ISSN: 0006-3568
    RVK:
    Sprache: Englisch
    Verlag: Oxford University Press (OUP)
    Publikationsdatum: 2001
    ZDB Id: 2066019-4
    SSG: 12
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 7
    In: Clinical Infectious Diseases, Oxford University Press (OUP), Vol. 73, No. 6 ( 2021-09-15), p. e1337-e1344
    Kurzfassung: Humoral response to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) occurs within the first weeks after coronavirus disease 2019 (COVID-19). Those antibodies exert a neutralizing activity against SARS-CoV-2, whose evolution over time after COVID-19 as well as efficiency against novel variants are poorly characterized. Methods In this prospective study, sera of 107 patients hospitalized with COVID-19 were collected at 3 and 6 months postinfection. We performed quantitative neutralization experiments on top of high-throughput serological assays evaluating anti-spike (S) and anti-nucleocapsid (NP) immunoglobulin G (IgG). Results Levels of seroneutralization and IgG rates against the ancestral strain decreased significantly over time. After 6 months, 2.8% of the patients had a negative serological status for both anti-S and anti-NP IgG. However, all sera had a persistent and effective neutralizing effect against SARS-CoV-2. IgG levels correlated with seroneutralization, and this correlation was stronger for anti-S than for anti-NP antibodies. The level of seroneutralization quantified at 6 months correlated with markers of initial severity, notably admission to intensive care units and the need for mechanical invasive ventilation. In addition, sera collected at 6 months were tested against multiple SARS-CoV-2 variants and showed efficient neutralizing effects against the D614G, B.1.1.7, and P.1 variants but significantly weaker activity against the B.1.351 variant. Conclusions Decrease in IgG rates and serological assays becoming negative did not imply loss of neutralizing capacity. Our results indicate a sustained humoral response against the ancestral strain and the D614G, B.1.1.7, and P.1 variants for at least 6 months in patients previously hospitalized for COVID-19. A weaker protection was, however, observed for the B.1.351 variant.
    Materialart: Online-Ressource
    ISSN: 1058-4838 , 1537-6591
    RVK:
    Sprache: Englisch
    Verlag: Oxford University Press (OUP)
    Publikationsdatum: 2021
    ZDB Id: 2002229-3
    Standort Signatur Einschränkungen Verfügbarkeit
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