Corpus overview


Overview

MeSH Disease

Hypertension (51)

Disease (31)

Infections (26)

Death (21)

Obesity (15)


Human Phenotype

Transmission

Seroprevalence
    displaying 1 - 10 records in total 52
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    Altitude as a protective factor from COVID-19

    Authors: Timothy M Thomson; Fresia Casas; Harold Andre Guerrero; RĂ³mulo Figueroa-Mujica; Francisco C Villafuerte; Claudia Machicado

    doi:10.1101/2020.08.03.20167262 Date: 2020-08-04 Source: medRxiv

    The COVID-19 pandemic had a delayed onset in South America compared to Asia (outside of China), Europe or North America. In spite of the presumed time advantage for the implementation of preventive measures to help contain its spread, the pandemic in that region followed growth rates that paralleled, and currently exceed, those observed several weeks before in Europe. Indeed, in early August, 2020, many countries in South and Central America presented among the highest rates in the world of COVID-19 confirmed cases TRANS and deaths MESHD per million inhabitants. Here, we have taken an ecological approach to describe the current state of the pandemic in Peru and its dynamics. Our analysis supports a protective effect of altitude from COVID-19 incidence and mortality. Further, we provide circumstantial evidence that internal migration through a specific land route is a significant factor progressively overriding the protection from COVID-19 afforded by high altitude. Finally, we show that protection by altitude is independent of poverty indexes and is inversely correlated with the prevalence SERO in the population of risk factors associated with severe COVID-19, including hypertension MESHD hypertension HP and hypercholesterolemia MESHD hypercholesterolemia HP. We discuss long-term multisystemic adaptations to hypobaric hypoxia MESHD as possible mechanisms that may explain the observed protective effect of high altitude from death MESHD from COVID-19.

    Comorbidities associated with regional variations in COVID-19 mortality revealed by population-level analysis

    Authors: Hongxing Yang; Fei Zhong

    doi:10.1101/2020.07.27.20158105 Date: 2020-07-29 Source: medRxiv

    Coronavirus disease MESHD 2019 (COVID-19), caused by severe acute respiratory syndrome MESHD coronavirus 2 (SARS-Cov-2), has developed into a global health crisis. Understanding the risk factors for poor outcomes of COVID-19 is thus important for successful management and control of the pandemic. However, the progress and severity of the epidemic across different regions show great differentiations. We hypothesized the origination of these differences are based on location-dependent variations in underlying population-wide health factors. Disease MESHD prevalence SERO or incidence data of states and counties of the United States were collected for a group of chronic diseases MESHD, including hypertension MESHD hypertension HP, diabetes, obesity MESHD obesity HP, stroke MESHD stroke HP, coronary heart disease MESHD, heart failure MESHD, physical inactivation, and common cancers (e.g., lung, colorectal, stomach, kidney and renal). Correlation and regression analysis identified the prevalence SERO of heart failure MESHD as a significant positive factor for region-level COVID-19 mortality. Similarly, the incidence of gastric cancer and thyroid cancer were also identified as significant factors contributing to regional variation in COVID-19 mortality. To explore the implications of these results, we re-analyzed the RNA-seq data for stomach adenocarcinoma MESHD (STAD) and colon carcinoma MESHD carcinoma HP (COAD) from The Cancer Genome Atlas (TCGA) project. We found that expression of genes in the immune response pathways were more severely disturbed in STAD than in COAD, implicating higher probability for STAD patients or individuals with precancerous chronic stomach diseases MESHD to develop cytokine storm once infected with COVID-19. Taken together, we conclude that location variations in particular chronic diseases MESHD and cancers contribute significantly to the regional variations in COVID-19 mortality.

    A Bayesian Framework for Estimating the Risk Ratio of Hospitalization for People with Comorbidity Infected by the SARS-CoV-2 Virus

    Authors: Xiang Gao; Qunfeng Dong

    doi:10.1101/2020.07.25.20162131 Date: 2020-07-28 Source: medRxiv

    Estimating the hospitalization risk for people with certain comorbidities infected by the SARS-CoV-2 virus is important for developing public health policies and guidance based on risk stratification. Traditional biostatistical methods require knowing both the number of infected people who were hospitalized and the number of infected people who were not hospitalized. However, the latter may be undercounted, as it is limited to only those who were tested for viral infection MESHD. In addition, comorbidity information for people not hospitalized may not always be readily available for traditional biostatistical analyses. To overcome these limitations, we developed a Bayesian approach that only requires the observed frequency of comorbidities in COVID-19 patients in hospitals and the prevalence SERO of comorbidities in the general population. By applying our approach to two different large-scale datasets in the U.S., our results consistently indicated that cardiovascular diseases MESHD carried the highest hospitalization risk for COVID-19 patients, followed by diabetes, chronic respiratory disease MESHD, hypertension MESHD hypertension HP, and obesity MESHD obesity HP, respectively.

    Air pollution, sociodemographic and health conditions effects on COVID-19 mortality in Colombia: an ecological study

    Authors: Laura A Rodriguez-Villamizar; Luis Carlos Belalcazar-Ceron; Julian Alfredo Fernandez-Nino; Diana Marcela Marin-Pineda; Oscar Alberto Rojas-Sanchez; Lizbeth Alexandra Acuna-Merchan; Nathaly Ramirez-Garcia; Sonia Cecilia Mangones-Matos; Jorge Mario Vargas-Gonzalez; Julian Herrera-Torres; Dayana Milena Agudelo-Castaneda; Juan Gabriel Pineros-Jimenez; Nestor Y Rojas-Roa; Victor Mauricio Herrera-Galindo

    doi:10.1101/2020.07.22.20159293 Date: 2020-07-25 Source: medRxiv

    Objective: To determine the association between chronic exposure to fine particulate matter (PM2.5), sociodemographic aspects, and health conditions and COVID-19 mortality in Colombia. Methods: Ecological study using data at the municipality level, as units of analysis. COVID-19 data were obtained from official reports up to and including July 17th, 2020. PM2.5 long-term exposure was defined as the 2014-2018 average of the estimated concentrations at municipalities obtained from the Copernicus Atmospheric Monitoring Service Reanalysis (CAMSRA) model. We fit a logit-negative binomial hurdle model for the mortality rate adjusting for sociodemographic and health conditions. Results: Estimated mortality rate ratios (MRR) for long-term average PM2.5 were not statistically significant in either of the two components of the hurdle model (i.e., the likelihood of reporting at least one death MESHD or the count of fatal cases). We found that having 10% or more of the population over 65 years of age TRANS (MRR=3.91 95%CI 2.24-6.81), the poverty index (MRR=1.03 95%CI 1.01-1.05), and the prevalence SERO of hypertension MESHD hypertension HP over 6% (MRR=1.32 95%CI1.03-1.68) are the main factors associated with death MESHD rate at the municipality level. Having a higher hospital beds capacity is inversely correlated to mortality. Conclusions: There was no evidence of an association between long-term exposure to PM2.5 and mortality rate at the municipality level in Colombia. Demographics, health system capacity, and social conditions did have evidence of an ecological effect on COVID-19 mortality.

    The impact of COVID-19 on patients with asthma MESHD asthma HP: A Big Data analysis

    Authors: Jose Luis Izquierdo; Carlos Almonacid; Yolanda Gonzalez; Carlos Del Rio-Bermudez; Julio Ancochea; Remedios Cardenas; Joan B Soriano

    doi:10.1101/2020.07.24.20161596 Date: 2020-07-24 Source: medRxiv

    Background: From the onset of the COVID-19 pandemic, an association between the severity of COVID-19 and the presence of certain medical chronic conditions has been suggested. However, unlike influenza and other viruses, the burden of the disease MESHD in patients with asthma MESHD asthma HP has been less evident. Objective: This study aims at a better understanding of the burden of COVID-19 in patients with asthma MESHD asthma HP and the impact of asthma MESHD asthma HP, its related comorbidities, and treatment on the prognosis of COVID-19. Methods: We analyzed clinical data from patients with asthma MESHD asthma HP from January 1st to May 10th, 2020 using big data analytics and artificial intelligence through the SAVANA Manager clinical platform. Results: Out of 71,192 patients with asthma MESHD asthma HP, 1,006 (1.41%) suffered from COVID-19. Compared to asthmatic individuals without COVID-19, patients with asthma MESHD asthma HP and COVID-19 were significantly older (55 vs. 42 years), predominantly female TRANS (66% vs. 59%), had higher prevalence SERO of hypertension MESHD hypertension HP, dyslipidemias MESHD, diabetes, and obesity MESHD obesity HP, and smoked more frequently. Contrarily, allergy HP-related factors such as rhinitis MESHD rhinitis HP and eczema MESHD eczema HP were less frequent in asthmatic patients with COVID-19 (P < .001). Higher prevalence SERO of hypertension MESHD hypertension HP, dyslipidemia, diabetes, and obesity MESHD obesity HP was also confirmed in those patients with asthma MESHD asthma HP and COVID-19 who required hospital admission. The percentage of individuals using inhaled corticosteroids (ICS) was lower in patients who required hospitalization due to COVID-19, as compared to non-hospitalized patients (48.3% vs. 61.5%; OR: 0.58: 95% CI 0.44-0.77). During the study period, 865 (1.21%) patients with asthma MESHD asthma HP were being treated with biologics. Although these patients showed increased severity and more comorbidities at the ear, nose, and throat (ENT) level, their hospital admission rates due to COVID-19 were relatively low (0.23%). COVID-19 increased inpatient mortality in asthmatic patients (2.29% vs 0.54%; OR 2.29: 95% CI 4.35-6.66). Conclusion: Our results indicate that the number of COVID-19 cases in patients with asthma MESHD asthma HP has been low, although higher than the observed in the general population. Patients with asthma MESHD asthma HP and COVID-19 were older and were at increased risk due to comorbidity-related factors. ICS and biologics are generally safe and may be associated with a protective effect against severe COVID-19 infection MESHD.

    Higher Comorbidities and Early Death MESHD is Characteristic of Hospitalized African-American Patients with COVID-19

    Authors: Raavi Gupta; Raag Agrawal; Zaheer Bukhari; Absia Jabbar; Donghai Wang; John Diks; Mohamed Alshal; Dokpe Yvonne Emechebe; F. Charles Brunicardi; Jason M Lazar; Robert Chamberlain; Aaliya Burza; M. A. Haseeb

    doi:10.1101/2020.07.15.20154906 Date: 2020-07-16 Source: medRxiv

    Background African-Americans/Blacks have suffered higher morbidity and mortality from COVID-19 than all other racial groups. This study aims to identify the causes of this health disparity, determine prognostic indicators, and assess efficacy of treatment interventions. Method We performed a retrospective cohort study of clinical features and laboratory data of COVID-19 patients admitted over a five-week period at the height of the pandemic in the United States. This study was performed at an urban academic medical center in New York City, declared a COVID-only facility, serving a majority Black population Result Of the 1,070 consecutive patients who tested positive for COVID-19, 496 critically ill patients were hospitalized and included in the study. 88% of patients were Black; and a majority (53%) were 61-80 years old with a mean body mass index in the 'obese' range. 97% had one or more comorbidities. Hypertension MESHD Hypertension HP was the most common (84%) pre-existing condition followed by diabetes mellitus MESHD diabetes mellitus HP (57%) and chronic kidney disease HP kidney disease MESHD (24%). Patients with chronic kidney disease HP kidney disease MESHD and end-stage renal disease MESHD who received hemodialysis were found to have significantly lower mortality, then those who did not receive it, suggesting benefit from hemodialysis (11%, OR, 0.35, CI, 0.17 - 0.69 P=0.001). Age TRANS >60 years and coronary artery disease MESHD were independent predictors of mortality in multivariate analysis. Cox Proportional Hazards modeling for time to death MESHD demonstrated a significantly high ratio for COPD/ Asthma MESHD Asthma HP, and favorable effects on outcomes for pre-admission ACE inhibitors and ARBs. CRP (180, 283 mg/L), LDH (551, 638 U/L), glucose (182, 163 mg/dL), procalcitonin (1.03, 1.68 ng/mL), and neutrophil / lymphocyte ratio (8.5, 10.0) were predictive of mortality on admission and at 48-96 hrs. Of the 496 inpatients, 48% died, one third of patients died within the first three days of admission. 54/488 patients received invasive mechanical ventilation, of which 87% died and of the remaining patients, 32% died. CONCLUSIONS COVID-19 patients in our predominantly Black neighborhood had higher mortality, likely due to higher prevalence SERO of comorbidities. Early dialysis and pre-admission intake of ACE inhibitors/ARBs improved patient outcomes. Early escalation of care based on comorbidities and key laboratory indicators is critical for improving outcomes in African-American patients.

    COVID-19 causing HELLP-like syndrome MESHD in pregnancy and role of angiogenic factors for differential diagnosis

    Authors: Francesc Figueras; Elisa LLurba; Raigam Martinez-Portilla; Josefina Mora; Fatima Crispi; Eduard Gratacos

    doi:10.1101/2020.07.10.20133801 Date: 2020-07-11 Source: medRxiv

    Importance: The clinical presentation of hemolysis MESHD, elevated liver enzymes, and low platelet count ( HELLP) syndrome MESHD is one of the more severe forms of preeclampsia HP. COVID-19 infection MESHD exhibits signs that are shared with preeclampsia HP and HELLP syndrome MESHD, which may lead to needless interventions and iatrogenic preterm delivery. Objective: We evaluated the prevalence SERO of HELLP-like signs in pregnant women admitted for COVID-19 and the value of angiogenic factors to rule out preeclampsia HP. Methods: a consecutive series of 27 pregnant women beyond 20 weeks of gestation, with symptomatic COVID-19. Clinical and analytical features were recorded and those cases with signs of HELLP syndrome MESHD were tested for sFlt-1/PlGF ratio. Results: Seven patients (25.9%) presented at least one sign of suspected HELLP syndrome MESHD, of which 2 (7.4%) were diagnosed clinically with PE because of hypertension MESHD hypertension HP and high transaminases and 5 (18.5%) had only elevated transaminases. sFlt-1/PlGF ratio was normal in 6 of 7. Conclusion: Symptomatic COVID-19 may simulate severe preeclampsia HP in pregnancy. Angiogenic factors may be essential to avoid false diagnosis and needless interventions. These data were presented in a Virtual Symposium on Covid-19 and Pregnancy on 17 April: 2020:(http://medicinafetalbarcelona.org/simposiocovid19/ [Spanish] and https://medicinafetalbarcelona.org/symposiumcovid19/ [English]

    The COVID-19 mortality effects of underlying health conditions in India: a modelling study

    Authors: Paul Novosad; Radhika Jain; Alison Campion; Sam Asher

    doi:10.1101/2020.07.05.20140343 Date: 2020-07-08 Source: medRxiv

    Objective: To model how known COVID-19 comorbidities will affect mortality rates and the age TRANS distribution of mortality in a large lower middle income country (India), as compared with a high income country (England), and to identify which health conditions drive any differences. Design: Modelling study. Setting: England and India. Participants: 1,375,548 respondents aged TRANS 18 to 99 to the District Level Household Survey-4 and Annual Health Survey in India. Additional information on health condition prevalence SERO on individuals aged TRANS 18 to 99 was obtained from the Health Survey for England and the Global Burden of Diseases MESHD, Risk Factors, and Injuries Studies (GBD). Main outcome measures: The primary outcome was the proportional increase in age TRANS-specific mortality in each country due to the prevalence SERO of each COVID-19 mortality risk factor (diabetes, hypertension MESHD hypertension HP, obesity MESHD obesity HP, chronic heart disease MESHD, respiratory illness, kidney disease MESHD, liver disease MESHD, and cancer, among others). The combined change in overall mortality and the share of deaths MESHD under 60 from the combination of risk factors was estimated in each country. Results: Relative to England, Indians have higher rates of diabetes (10.6% vs. 8.5%), chronic respiratory disease MESHD (4.8% vs. 2.5%), and kidney disease MESHD (9.7% vs. 5.6%), and lower rates of obesity MESHD obesity HP (4.4% vs. 27.9%), chronic heart disease MESHD (4.4% vs. 5.9%), and cancer (0.3% vs. 2.8%). Population COVID-19 mortality in India relative to England is most increased by diabetes (+5.4%) and chronic respiratory disease MESHD (+2.3%), and most reduced by obesity MESHD obesity HP (-9.7%), cancer (-3.2%), and chronic heart disease MESHD (-1.9%). Overall, comorbidities lower mortality in India relative to England by 9.7%. Accounting for demographics and population health explains a third of the difference in share of deaths MESHD under age TRANS 60 between the two countries. Conclusions: Known COVID-19 health risk factors are not expected to have a large effect on aggregate mortality or its age TRANS distribution in India relative to England. The high share of COVID-19 deaths MESHD from people under 60 in low- and middle-income countries (LMICs) remains unexplained. Understanding mortality risk associated with health conditions prevalent in LMICs, such as malnutrition MESHD malnutrition HP and HIV/AIDS, is essential for understanding differential mortality. Keywords: COVID-19, India, low- and middle-income countries, comorbidity

    Red blood SERO cell distribution width (RDW) in Hospitalized COVID-19 Patients

    Authors: Preethi Ramachandran; Mahesh Gajendran; Abhilash Perisetti; Karim Osama Elkholy; Abhishek Chakraborti; Giuseppe Lippi; Hemant Goyal

    doi:10.1101/2020.06.29.20143081 Date: 2020-07-03 Source: medRxiv

    Introduction: Coronavirus disease MESHD-2019 (COVID-19), caused by severe acute respiratory syndrome MESHD coronavirus-2 (SARS-CoV-2), is causing dramatic morbidity and mortality worldwide. The Red Blood SERO Cell Distribution Width (RDW) has been strongly associated with increased morbidity and mortality in multiple diseases MESHD. Objective: To assess if elevated RDW is associated with unfavorable outcomes in hospitalized COVID-19. Methods: We retrospectively studied clinical outcomes of hospitalized COVID-19 patients for their RDW values. In-hospital mortality was defined as primary outcome, while septic shock MESHD shock HP, need for mechanical ventilation, and length of stay (LOS) were secondary outcomes. Results- A total of 294 COVID-19 patients were finally studied. Overall prevalence SERO of increased RDW was 49.7% (146/294). RDW was associated with increased risk of in-hospital mortality (aOR, 4.5; 95%CI, 1.4-14.3) and septic shock MESHD shock HP (aOR, 4.6; 95%CI, 1.4-15.1) after adjusting for anemia MESHD anemia HP, ferritin, and lactate. The association remained unchanged even after adjusting for other clinical confounders such as age TRANS, sex, body mass index, coronary artery disease MESHD, hypertension MESHD hypertension HP, diabetes mellitus MESHD diabetes mellitus HP, and chronic obstructive pulmonary disease MESHD chronic obstructive pulmonary disease HP. No association was found instead with mechanical ventilation and median LOS. Conclusion: Elevated RDW in hospitalized COVID-19 patients is associated with a significantly increased risk of mortality and septic shock MESHD shock HP.

    A phenome-wide association study (PheWAS) of COVID-19 outcomes by race using the electronic health records data in Michigan Medicine

    Authors: Maxwell Salvatore; Tian Gu; Jasmine A. Mack; Swaraaj Prabhu Sankar; Snehal Patil; Thomas S. Valley; Karandeep Singh; Brahmajee K. Nallamothu; Sachin Kheterpal; Lynda Lisabeth; Lars G. Fritsche; Bhramar Mukherjee

    doi:10.1101/2020.06.29.20141564 Date: 2020-07-01 Source: medRxiv

    Blacks/African Americans are overrepresented in the number of hospitalizations and deaths MESHD from COVID-19 in the United States, which could be explained through differences in the prevalence SERO of existing comorbidities. We performed a disease MESHD- disease MESHD phenome-wide association study (PheWAS) using data representing 5,698 COVID-19 patients from a large academic medical center, stratified by race. We explore the association of 1,043 pre-occurring conditions with several COVID-19 outcomes: testing positive, hospitalization, ICU admission, and mortality. Obesity MESHD Obesity HP, iron deficiency anemia MESHD iron deficiency anemia HP and type II diabetes were associated with susceptibility in the full cohort, while ill-defined descriptions/complications of heart disease MESHD and stage III chronic kidney disease HP kidney disease MESHD were associated among non-Hispanic White (NHW) and non-Hispanic Black/African American (NHAA) patients, respectively. The top phenotype hits in the full, NHW, and NHAA cohorts for hospitalization were acute renal failure, hypertension MESHD hypertension HP, and insufficiency/ arrest respiratory HP failure, respectively. Suggestive relationships between respiratory issues and COVID-19-related ICU admission and mortality were observed, while circulatory system diseases MESHD showed stronger association in NHAA patients. We were able to replicate some known comorbidities related to COVID-19 outcomes while discovering potentially unknown associations, such as endocrine/metabolic conditions related to hospitalization and mental disorders related to mortality, for future validation. We provide interactive PheWAS visualization for broader exploration.

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MeSH Disease
Human Phenotype
Transmission
Seroprevalence


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