Positive COVID-19 Test Research Articles

The Use of Acoustic Mapping to Improve Surveillance of Pediatric Patient with Residual COVID-19 Symptomology

Objective: This study was designed to assess the severity of lung tissue changes due to COVID-19 in a pediatric cohort that still complained of post-COVID-19 symptoms. Materials and Methods: Parents and adolescents, 13 to 22 years old and have had a confirmatory positive polymerase chain reaction (+PCR) and/or rapid antigen test for COVID-19, consented to have a series of diagnostic tests to determine the level of lung tissue changes due to COVID-19. Sixteen adolescents completed the intake form and lung sonography. The lung sonogram was completed using the bedside lung ultrasound in emergency (BLUE) point method and a GE Logiq I laptop ultrasound system, as well as a linear 7.5-MHz or 3.0-MHz convex-array transducers. Thirteen adolescents completed a chest magnetic resonance imaging (MRI) examination on a 0.55T Siemens MAGNETOM Free.Max scanner. The examination included the heart and lungs of each participant and took about 90 minutes. A radiologist, sonographer, and computed tomography (CT) technologist reviewed and scored the images. Those positive lung sonogram scores were matched anatomically to the same slice within the chest MRI examination. Results: Based on the 13 participants, the acoustic mapping process demonstrated no diagnostic matches for positively scored sonograms at the pleural line or pulmonary parenchyma with the corresponding MRI image slices. There were diagnostic matches for negatively scored sonograms at the pleural line or pulmonary parenchyma with the corresponding MRI image slices. Conclusion: With lingering post-COVID-19 symptomology, this adolescent cohort demonstrated that acoustic mapping of their lung sonograms and chest MRI images had important combined diagnostic value. Lung sonography demonstrated diagnostic effectiveness for evaluating the periphery of the lung tissue, in this cohort but limited in viewing deeper structures. Conversely, MRI provided definitive views of the entire chest cavity and lung tissue, which is important for properly evaluating deeper pulmonary parenchyma.

May Measurement Month 2021: an analysis of blood pressure screening results from a suburban community in the Democratic Republic of the Congo.

Hypertension remains the most powerful contributor to the global morbidity and mortality. May Measurement Month (MMM), a worldwide screening campaign initiated by the International Society of Hypertension (ISH), is organized annually to increase awareness of high blood pressure (BP). We screened 20 913 adult (≥18 years) residents of suburb hamlets of Mbujimayi (mean age 35.1 ± 15.1 years; Black ethnicity: 98.8%; women: 29.6%; diabetes: 1.6%; alcohol drinkers: 16.8% and smokers: 6.7%, previous myocardial infarction: 1.4%; stroke: 0.8%; taking aspirin: 3.2%; taking statins: 1.9%). Three sitting BP readings were taken, and hypertension was defined as a systolic BP ≥ 140 mmHg or diastolic BP ≥ 90 mmHg or being on antihypertensive medication. Half of the participants had never had their BP checked, whilst 4.2% of respondents had participated in the MMM19 campaign. 0.9% and 1.7% reported COVID-19 vaccination and positive test, respectively. After multiple imputation of missing BP readings, 14.0% of respondents had hypertension of which 35.8% were aware, 28.0% were on antihypertensive medication and 14.1% had controlled BP. Of those on antihypertensive medication, 40.4% were on monotherapy, 37.2% adhered to taking their medication regularly, and 50.4% had controlled BP (<140/90 mmHg). In regression analyses adjusted for age, sex, and antihypertensive treatment, smoking was associated with lower systolic BP, having more years of education was associated with higher systolic and diastolic BP, and physical activity was associated with lower systolic and diastolic BP. This campaign contributes somewhat to reducing the 'black hole' on the prevalence of hypertension in DRC pending systematic countrywide BP screening.

May Measurement Month 2021: an analysis of blood pressure screening results from Venezuela.

Cardiovascular diseases continue to be the main cause of death in Venezuela, and hypertension is the principal risk factor. The May Measurement Month (MMM) campaign is a global initiative aimed to raising awareness of hypertension, which has been conducted in Venezuela since 2017. May Measurement Month 2021 included 46 732 participants with a mean age of 56.4 years (SD 14.4), 57.9% of whom were female. The percentage with hypertension was 60.3% (57.9% of females and 63.7% of males), 82.3% (84.8% of females and 79.2% of males) were aware, and 80.2% were taking antihypertensive medication. Of those on antihypertensive medication, 44.2% (41.2% of females and 48.2% of males) were not controlled [blood pressure (BP) ≥ 140/≥90 mmHg], with 61.3% receiving one drug, 30.0% two drugs, and 8.7% three or more drugs. 87.5% of those on treatment reported taking it regularly. Conditions associated with higher BP levels include fewer years of education, having a previous diagnosis of hypertension, and women who were hypertensive during a previous pregnancy. Physical activity and pregnancy were conditions associated with lower BP levels. A previous positive COVID-19 test was reported in 11.1%, and one or more COVID-19 vaccinations reported in 22.7% of participants. Of those on antihypertensive medication, 78.8% reported their treatment was not affected by COVID-19. Results are consistent with previous MMM campaigns and indicate that the screening campaign is feasible and useful to identify hypertension even in exceptional conditions such as the COVID-19 pandemic.

May Measurement Month 2021: an analysis of blood pressure screening results from Albania.

This article describes the May Measurement Month (MMM) 2021 campaign, which was the fourth time this annual hypertension screening campaign was conducted in Albania, a Mediterranean country in southeastern Europe. The MMM21 was conducted during the period of 28 September-30 November 2021, in 32 sites across several districts of Albania. Overall, 11 788 participants aged ≥18 years were included (63% women), with a mean age of 49.7 ± 14.9 years. Blood pressure (BP) was measured three times with Omron sphygmomanometers (model M3, Omron Healthcare, Kyoto, Japan), which are automatic upper arm BP monitors. Hypertension was defined as SBP ≥ 140 mmHg or diastolic blood pressure (DBP) ≥ 90 mmHg (based on the mean of the second and third recordings for SBP and DBP, respectively) or on antihypertensive medication. Self-reported data included pre-existing conditions, physical activity, smoking, alcohol consumption, COVID-19 testing, and use of contraception in women. Overall, 47.3% of screened participants had hypertension. Of those with hypertension, 70.1% were aware of their condition and 67.0% were on antihypertensive medication. About half (49.3%) of participants on antihypertensive medication had controlled BP (<140/90 mmHg). On average, BP was higher in those on antihypertensive medication and with increasing alcohol intake but lower in those with a history of stroke and those with higher levels of physical activity, previous positive COVID-19 test, and contraception use in women. In Albania, the MMM campaign continues to contribute to the early detection of hypertension among adults. Hence, it constitutes a valuable opportunistic screening instrument among other routine tools applied in the general Albanian population.

May Measurement Month 2021: an analysis of blood pressure screening results from Thailand.

Blood pressure (BP) measurement is the mainstay for diagnosing and treating hypertension. Blood pressure screening in the May Measurement Month (MMM) project is helpful for the early detection of hypertension, which is usually asymptomatic. This study aimed to investigate the epidemiology of hypertension from data in the MMM21 project in Thailand. A cross-sectional study was conducted according to the MMM clinical study protocol for MMM21 in all regions of Thailand from August to November 2021. We included adults aged ≥18 years. Baseline characteristics, history of hypertension diagnosis, and treatment were collected through the questionnaires followed by three standardized BP measurements, 1 min apart. We included 10 940 participants with a mean age of 41.3 (SD ± 13.5) years. Only 6% never had their BP measured before. Of all participants, 30.2% had hypertension, and among this hypertensive population, 50.3% were aware, and 46.2% were taking antihypertensive medications. Of participants with hypertension, 31.6% had controlled BP (<140/90 mmHg), and BP control was 68.5% among those taking antihypertensive medication. The proportion of participants who had diabetes, were on aspirin, and were on statin were 6, 7.2, and 11.4%, respectively. Almost all participants (93.7%) had received at least one COVID-19 vaccination, and 8.0% reported a previous COVID-19 positive test. Most of the participants (97.4%) received hypertension care at no cost. Hypertension awareness and overall BP control rate were relatively low, while most subjects had previously had their BP checked. The widespread use of BP measurement may improve the diagnosis and treatment of hypertension to improve the care of those with hypertension in Thailand.

Changes in Physical Function and Physical Therapy Use in Older Veterans Not Infected by CoVID-19 Residing in Community Living Centers during the CoVID-19 Pandemic

ObjectivesExamine physical function change and physical therapy (PT) use in short-stay and long-stay residents not infected by CoVID-19 within Veterans Affairs (VA) Community Living Centers (CLCs). DesignRetrospective cohort study using Minimum Data Set (MDS) 3.0 assessments. Settings and Participants12,606 Veterans in 133 VA CLCs between September 2019 and September 2020. MethodsDifference in physical function [MDS Activities of Daily Living Score (MDS-ADL)] and PT use (minutes in past 7 days) from admission to last assessment in a period were compared between the pre-CoVID-19 (September 2019 to February 2020) and early CoVID-19 (April 2020 to September 2020) period using mixed effects regression with multivariable adjustment. Assessments after a positive CoVID-19 test were excluded. Differences were examined in the sample and repeated after stratifying into short- and long-stay stratums. ResultsVeterans admitted during early CoVID-19 had more comorbidities, worse MDS-ADL scores, and were more often long-stay residents compared with those admitted during pre-CoVID-19. In comparison to pre-CoVID-19, Veterans in VA CLCs during early CoVID-19 experienced greater improvements in their MDS-ADL (−0.49 points, 95% CI –0.27, −0.71) and received similar minutes of therapy (2.6 minutes, 95% CI –0.8, 6.0). Stratification revealed short-stay residents had relative improvements in their function (−0.69 points, 95% CI –0.44, −0.94) and higher minutes of PT (5.1 minutes, 95% CI 0.9, 9.2) during early CoVID-19 whereas long-stay residents did not see differences in functional change (0.08 points, 95% CI –0.36, 0.51) or PT use (−0.6 minutes, 95% CI –6.1, 4.9). Conclusions and ImplicationsDuring early CoVID-19, physical function improved while the amount of PT received was maintained compared with pre-CoVID-19 for Veterans in VA CLCs. Short-stay residents experienced greater improvements in physical function and increases in PT use. These findings may be partly due to selection bias relating to Veterans admitted to CLCs during early CoVID-19.

Proton Pump Inhibitors and Risk of COVID-19 Infection in Children

To evaluate the influence of proton pump inhibitor (PPI) use on COVID-19 susceptibility and severity in children. This retrospective, case-control study included all children ≤21years undergoing COVID-19 polymerase chain reaction testing at a tertiary children's hospital between March 2020 and January 2023. The main exposure was PPI usage. The primary outcome was COVID-19 infection. The secondary outcome was COVID-19 hospitalization. Log-binomial regressions were used to examine associations between PPI use and these outcomes. 116 209 patients age 8.5±6.2years underwent 234 867 COVID-19 tests. Current PPI use was associated with a decreased risk of COVID-19 test positivity compared with PPI nonuse [RR 0.85 (95% CI 0.76, 0.94), P=.002]; however, there was a significant interaction with time of testing, and an effect of PPIs was no longer seen in the final months of the study following lessening of COVID-19 precautions [RR 1.04 (95% CI 0.0.80, 1.36), P=.77]. PPI use was not associated with risk of hospitalization in patients positive for COVID-19 after adjusting for other hospitalization risk factors [RR 0.85 (95% CI 0.64, 1.13), P=.26]. We did not find an association between PPI use and increased COVID-19 susceptibility or severity in this pediatric sample. These results provide reassuring evidence that PPIs may not worsen COVID-19 outcomes in children.

Syndromic Surveillance Tracks COVID-19 Cases in University and County Settings: Retrospective Observational Study.

Syndromic surveillance represents a potentially inexpensive supplement to test-based COVID-19 surveillance. By strengthening surveillance of COVID-19-like illness (CLI), targeted and rapid interventions can be facilitated that prevent COVID-19 outbreaks without primary reliance on testing. This study aims to assess the temporal relationship between confirmed SARS-CoV-2 infections and self-reported and health care provider-reported CLI in university and county settings, respectively. We collected aggregated COVID-19 testing and symptom reporting surveillance data from Cornell University (2020-2021) and Tompkins County Health Department (2020-2022). We used negative binomial and linear regression models to correlate confirmed COVID-19 case counts and positive test rates with CLI rate time series, lagged COVID-19 cases or rates, and day of the week as independent variables. Optimal lag periods were identified using Granger causality and likelihood ratio tests. In modeling undergraduate student cases, the CLI rate (P=.003) and rate of exposure to CLI (P<.001) were significantly correlated with the COVID-19 test positivity rate with no lag in the linear models. At the county level, the health care provider-reported CLI rate was significantly correlated with SARS-CoV-2 test positivity with a 3-day lag in both the linear (P<.001) and negative binomial model (P=.005). The real-time correlation between syndromic surveillance and COVID-19 cases on a university campus suggests symptom reporting is a viable alternative or supplement to COVID-19 surveillance testing. At the county level, syndromic surveillance is also a leading indicator of COVID-19 cases, enabling quick action to reduce transmission. Further research should investigate COVID-19 risk using syndromic surveillance in other settings, such as low-resource settings like low- and middle-income countries.

COVID-19 Booster Vaccination Status and Long COVID in the United States: A Nationally Representative Cross-Sectional Study.

Early studies have found that the initial COVID-19 vaccination series was protective against severe symptoms and long COVID. However, few studies have explored the association of booster doses on severe disease outcomes and long COVID. This cross-sectional analysis used data from the 2022 US National Health Interview Survey data to investigate how vaccination status correlates with COVID-19 infection severity and long COVID among previously infected individuals. Participants were categorized into three groups: those who had received at least one booster, those with only the initial complete vaccination series, and those with either an incomplete series or no vaccinations. Out of 9521 survey respondents who reported a past positive COVID-19 test, 51.2% experienced moderate/severe infections, and 17.6% experienced long COVID. Multivariable regression models revealed that receiving at least one booster shot was associated with lower odds of experiencing moderate/severe symptoms (aOR = 0.78, p < 0.001) compared to those unvaccinated or with an incomplete series. Additionally, having at least one booster reduced long COVID odds by 24% (aOR = 0.76, p = 0.003). Completing only the primary vaccine series did not significantly decrease the likelihood of severe illness or long COVID. These findings support the continued promotion of booster vaccinations to mitigate long COVID risks in vulnerable populations.

The impact of cardiorespiratory fitness on COVID-19 related outcomes: the ETHOS Study

Abstract Background Comorbidities such as cardiovascular disease, diabetes, obesity and hypertension are associated with more severe COVID-19 outcomes, but the relative impact of cardiorespiratory fitness (CRF) on outcomes in COVID-positive patients is largely unknown. Objective To assess the association between objectively measured CRF and COVID-19-related health outcomes including mortality, hospitalization, and mechanical ventilation in non-COVID vaccinated patients. Design, Setting and Participants. Retrospective analysis of 750,302 subjects (23,140 [mean age 65.8±12.0 years] with a positive COVID-19 test between March 2020 and September 2021) who underwent a maximal exercise test between 1999 and 2020. Main Outcomes and Measures. Association between all-cause mortality, hospitalization due to COVID-19, and need for intubation with risk for severe COVID-19 outcomes after adjustment for 15 covariates. Subjects were stratified into five age-specific CRF categories (Least-fit, Low-fit, Moderate-fit, Fit and High Fit), based on peak metabolic equivalents achieved. Results During a median of follow-up of 100 days, 1,643 (7.1%) patients died, 4,995 (21.6%) were hospitalized, and 927 (4.0%) required intubation for COVID-19 related reasons. When compared to the Least-Fit subjects (referent), the Low-Fit, Moderately-Fit, Fit, and High-Fit subjects had hazard ratios for mortality of 0.82 (95% CI; 0.72-0.93), 0.73 (95% CI; 0.63-0.86), 0.61 (95% CI; 0.53-0.72), and 0.54 (95% CI; 0.45-0.65), respectively (Figure). Subjects who were more fit also had significantly lower need for hospital admissions and intubation. Similar patterns were observed for elderly subjects and subgroups with comorbidities including hypertension, diabetes, cardiovascular disease, and chronic kidney disease; for each of these conditions, those in the High-Fit category had mortality rates that were roughly half those in the Low-Fit category. Conclusion Among subjects positive for COVID-19, higher CRF had a favorable impact on survival, need for hospitalization, and need for intubation regardless of age, BMI, or the presence of comorbidities.

Clinical characteristics and outcomes of COVID-19 cases admitted to adult intensive care units during the pandemic: A single center experience

BackgroundCOVID-19 is the largest recorded pandemic in history. It causes several complications such as shock, pneumonia, acute respiratory distress syndrome, and organ failure. The objective was to determine COVID-19 outcomes and risk factors in the intensive care (ICU) setting. MethodsA retrospective review of prospectively collected data was conducted. Adult patients with a positive RT-PCR test for COVID-19 admitted to ICUs of a tertiary care hospital between 2020 and 2022 were included. Patients who had severe complex trauma were excluded. The outcomes examined included ventilation use and duration, length of stay (LOS), and mortality. ResultsA total of 964 patients were included. The mean ( ± standard deviation, SD) age was 63.7 ± 16.9 years. The majority of the patients were males (59.0 %) and Saudi (75.7 %). Ventilation use was documented in 443 (57.1 %) patients, with a mean ( ± SD) ventilation duration of 9.7 ± 8.4 days. Death occurred in 361 (37.4 %) patients after a mean ( ± SD) of 33.3 ± 44.5 days from infection. The mean ( ± SD) LOS was 30.6 ± 54.1 days in hospital and 5.2 ± 5.4 days in ICU. Ventilation use was associated with older age, males, longer ICU LOS, mortality, and admission to medical-surgical ICU. Crude mortality use was associated with older age, longer ICU LOS, use of ventilator, shorter ventilation duration, and admission to medical-surgical or respiratory ICUs. ConclusionsCOVID-19 patients admitted to adult ICUs are at high risk of death and mechanical ventilation. The crude risks of both outcomes are higher in older age and longer ICU LOS and are very variable by ICU type.

Excess burden of respiratory and abdominal conditions following COVID-19 infections during the ancestral and Delta variant periods in the United States: An EHR-based cohort study from the RECOVER program.

The frequency and characteristics of post-acute sequelae of SARS-CoV-2 infection (PASC) may vary by SARS-CoV-2 variant. To characterize PASC-related conditions among individuals likely infected by the ancestral strain in 2020 and individuals likely infected by the Delta variant in 2021. Retrospective cohort study of electronic medical record data for approximately 27 million patients from March 1, 2020-November 30, 2021. Healthcare facilities in New York and Florida. Patients who were at least 20 years old and had diagnosis codes that included at least one SARS-CoV-2 viral test during the study period. Laboratory-confirmed COVID-19 infection, classified by the most common variant prevalent in those regions at the time. Relative risk (estimated by adjusted hazard ratio [aHR]) and absolute risk difference (estimated by adjusted excess burden) of new conditions, defined as new documentation of symptoms or diagnoses, in persons between 31-180 days after a positive COVID-19 test compared to persons without a COVID-19 test or diagnosis during the 31-180 days after the last negative test. We analyzed data from 560,752 patients. The median age was 57 years; 60.3% were female, 20.0% non-Hispanic Black, and 19.6% Hispanic. During the study period, 57,616 patients had a positive SARS-CoV-2 test; 503,136 did not. For infections during the ancestral strain period, pulmonary fibrosis, edema (excess fluid), and inflammation had the largest aHR, comparing those with a positive test to those without a COVID-19 test or diagnosis (aHR 2.32 [95% CI 2.09 2.57]), and dyspnea (shortness of breath) carried the largest excess burden (47.6 more cases per 1,000 persons). For infections during the Delta period, pulmonary embolism had the largest aHR comparing those with a positive test to a negative test (aHR 2.18 [95% CI 1.57, 3.01]), and abdominal pain carried the largest excess burden (85.3 more cases per 1,000 persons). We documented a substantial relative risk of pulmonary embolism and a large absolute risk difference of abdomen-related symptoms after SARS-CoV-2 infection during the Delta variant period. As new SARS-CoV-2 variants emerge, researchers and clinicians should monitor patients for changing symptoms and conditions that develop after infection.

Characterizing the Impact of the Covid-19 Pandemic on Adults with Autosomal Dominant Polycystic Kidney Disease: A Cross-Sectional Study.

The Covid-19 pandemic greatly affected those with chronic diseases, impacting healthcare access and healthcare seeking behaviors. The impact of the pandemic on adults with Autosomal Dominant Polycystic Kidney Disease (ADPKD) has not been investigated. Participants were recruited from a cohort of 239 ADPKD patients enrolled in a longitudinal study at the University of Maryland. Patients on renal replacement therapy were excluded. N = 66 patients participated in a phone questionnaire from June 2022-December 2022 about ADPKD-related complications, concern about contracting Covid-19, healthcare-seeking behaviors, and telehealth utilization before and after March 2020. N = 34 (51.5%) of participants reported a positive Covid-19 test result and N = 29 (44%) expressed high concern of contracting Covid-19. Those who avoided medical care at least once (N = 17, 25.8%) had similar demographics and ADPKD severity to those who did not, but reported greater telehealth utilization (88.2% vs. 42.9%, p = 0.002), greater use of non-prescribed medication for Covid-19 treatment or prevention (35.3% vs. 8.2%, p = 0.01), and were more likely to contract Covid-19 (76.5% vs. 42.9%, p = 0.02). Among the N = 53 who reported very good or excellent ADPKD disease management pre-pandemic, N = 47(89%) reported no significant change during the pandemic. In this highly educated, high-income cohort with a mean age of 46.1 years, most people reported well-managed ADPKD prior to the pandemic. This may explain why less than half of participants expressed high concern for contracting Covid-19. Overall, there was no significant pandemic-related decline in self-reported ADPKD management, like due to excellent access to, and uptake of, telehealth services. Notably, 1 in 4 participants reported healthcare avoidant behavior, the effect of which may only be seen years from now. Future studies should investigate potential impacts of avoidant behaviors, as well as expand investigation to a more diverse cohort whose care may not have been as easily transitioned to telehealth.

Pulmonary Embolism Rule-out Criteria: Diagnostic Accuracy and Impact of COVID-19

BackgroundThe Pulmonary Embolism Rule-Out Criteria (PERC), developed to minimize unnecessary testing in low-risk pulmonary embolism (PE) cases, lacks clear validation in the context of COVID-19. ObjectivesTo assess the validity of the PERC in emergency department patients having undergone computed tomography pulmonary angiography (CTPA) during the COVID-19 pandemic. MethodsWe conducted a retrospective analysis of emergency department patients who underwent CTPA for suspected PE. COVID-19 status was based on the results of a reverse transcription-polymerase chain reaction (RT-PCR) test performed in the emergency department, or within 30 days prior to visiting the emergency department. We collected data on demographics, symptoms, d-dimer levels, and medical history relevant to thrombosis and conducted the PERC test using the criteria including age, oxygen saturation, heart rate, and the absence of hemoptysis or recent trauma. We categorized outcomes based on the concordance between the PERC results and CTPA findings, with specific definitions for true positive and negative, as well as false positive and negative results. We also evaluated the impact of COVID-19 status on the diagnostic performance of the PERC by analyzing the prevalence of PE in patients testing positive and negative for COVID-19. ResultsAmong the 2.430 participants, 45.1% tested negative for COVID-19, 43.4% tested positive, and 11.5% were untested. The PERC identified 91.2% of the cases as positive, 6.9% of which were confirmed to have PE. Overall, 84.9% of cases (n = 2.062) showed a discordant result between the PERC and CTPA findings. The lack of significant correspondence between the PERC positivity and actual PE presence (p = 0.001; p < 0.01) indicated low diagnostic concordance. In patients with a positive COVID-19 test result, the PERC demonstrated a sensitivity of 95.3% (95% CI: 86.91–99.02), a specificity of 9.1% (95% CI: 7.46–11.15), a positive predictive value of 6.3% (95% CI: 6.01–6.70), a negative predictive value of 96.8% (95% CI: 90.81–98.94), and an accuracy of 14.4% (95% CI: 12.34–16.67). In patients who tested negative for COVID-19, the sensitivity was 95.4% (95% CI: 88.64–98.73), the specificity was 7.8% (95% CI: 6.25–9.66), the positive predictive value was 8.1% (95% CI: 7.83–8.57), the negative predictive value was 95.1% (95% CI: 88.11–98.14), and the accuracy was 14.7% (95% CI: 12.73–17.02). ConclusionThe study demonstrates that the sensitivity and negative predictive value of the PERC are comparable in COVID-19 positive and negative patients. Furthermore, the incidence of PE among patients presenting to the emergency department did not significantly differ based on COVID-19 status. While this study highlights the relevance of the PERC in clinical decision-making, caution is advised as the PERC may not always provide reliable results when used as the sole diagnostic test.

Real-world evidence of sotrovimab effectiveness for preventing severe outcomes in patients with COVID-19: A quality improvement propensity-matched retrospective cohort study of a pan-provincial program in Alberta, Canada

ObjectivesPost-marketing surveillance of sotrovimab's effect during implementation in the Canadian population is limited. MethodsThe study used a propensity score–matched retrospective cohort design. Follow-up began between the periods of December 15, 2021 and April 30 2022. The study assessed any severe outcome defined as all-cause hospital admission or mortality within 30 days of a confirmed COVID-19–positive test. Covariate-adjusted odds ratios between sotrovimab treatment and the severe outcome was conducted using logistic regression. ResultsThere were 22,289 individuals meeting the treatment criteria for sotrovimab. There were 1603 treated and 6299 untreated individuals included in the analysis. The outcome occurrence in the study was 5.49% (treated) and 4.21% (untreated), with a median time from diagnosis to treatment of 1.00 days (interquartile range 2.00 days). In the propensity-matched cohort, sotrovimab was not associated with lower odds of a severe outcome (odds ratio 1.20, 95% confidence interval 0.91-1.58), adjusting for confounding variables. ConclusionsAfter adjusting for confounding variables, sotrovimab treatment was not associated with lower odds of a severe outcome within 30-days of COVID-19–positive date.

Final assessment of the COVID-19 pandemic impact between the different social and economic strata population of the city of Buenos Aires

BackgroundDuring the pandemic, epidemiological communications reported an estimation of excess deaths. However, the final calculation requires a detailed analysis. The study aim was to ascertain the number and distribution of COVID-19 fatalities among various socio-economic strata in a large, moderate to low-income city. Study designObservational time series analysis in a large city, treated as a natural experiment. MethodsAnalysis of death certificates, demographic data, and health system records of positive RT-PCR COVID-19 tests from 2015 to 2021, categorizing by age, sex, and place of residence. The study measured the pandemic's impact on mortality, including COVID and non-COVID deaths, using corrected Poisson regression models for different demographics and assessing socio-economic status impact via ecological community-level analysis. ResultsCompared to the pre-pandemic period (2015–2019, IRR = 1.00), the sex- and age-adjusted rate of all-cause death increased significantly during the pandemic (2020–2021) IRR = 1.109 [1.054–1.167], p < 0.0001. This was observed in both males (IRR = 1.158 [1.1–1.219], p < 0.0001) and females (IRR = 1.068 [1.016–1.124], p = 0.01). There was no observed effect of the pandemic on the historical trend in the progressive reduction of mortality in people under 35 years of age. The increase in deaths was at the expense of COVID (+11,175 deaths) and cardiovascular causes (IRR = 1.114 [1.020–1.217] p = 0.017). During the pandemic, there was a significant increase in deaths at home (IRR = 1.219 [1197–1.242], p < 0.0001), especially in people dying of cardiovascular causes (IRR = 1.391 [1.360–1.422], p < 0.0001). The increase in the adjusted mortality rate during the pandemic was socially conditioned. ConclusionsThe pandemic not only led to increased COVID-19 mortality but also heightened fatalities from non-COVID causes, reflecting a potential bias in healthcare resource allocation towards SARS-CoV-2 at the expense of chronic pathologies care.

Changes in the investigation and management of suspected myocardial infarction and injury during COVID-19: a multi-centre study using routinely collected healthcare data.

The COVID-19 pandemic was associated with a reduction in the incidence of myocardial infarction (MI) diagnosis, in part because patients were less likely to present to hospital. Whether changes in clinical decision making with respect to the investigation and management of patients with suspected MI also contributed to this phenomenon is unknown. Multicentre retrospective cohort study in three UK centres contributing data to the National Institute for Health Research Health Informatics Collaborative. Patients presenting to the Emergency Department (ED) of these centres between 1st January 2020 and 1st September 2020 were included. Three time epochs within this period were defined based on the course of the first wave of the COVID-19 pandemic: pre-pandemic (epoch 1), lockdown (epoch 2), post-lockdown (epoch 3). During the study period, 10,670 unique patients attended the ED with chest pain or dyspnoea, of whom 6,928 were admitted. Despite fewer total ED attendances in epoch 2, patient presentations with dyspnoea were increased (p < 0.001), with greater likelihood of troponin testing in both chest pain (p = 0.001) and dyspnoea (p < 0.001). There was a dramatic reduction in elective and emergency cardiac procedures (both p < 0.001), and greater overall mortality of patients (p < 0.001), compared to the pre-pandemic period. Positive COVID-19 and/or troponin test results were associated with increased mortality (p < 0.001), though the temporal risk profile differed. The first wave of the COVID-19 pandemic was associated with significant changes not just in presentation, but also the investigation, management, and outcomes of patients presenting with suspected myocardial injury or MI.

Prepandemic Resilience to Trauma and COVID-19 Infection in Older Women.

Prior work suggests that psychological resilience to trauma may protect not only mental but also physical health. This study examined the relationship of prepandemic psychological resilience to lifetime trauma with self-reported COVID-19 infection and symptoms during the early years of the COVID-19 pandemic. Data are from 18,670 longitudinal cohort participants in the Nurses' Health Study II. Based on prior evidence that trauma and subsequent distress can increase infection risk and severity, and that psychological assets may offset this risk, we hypothesized higher versus lower psychological resilience to prior trauma would be associated with lower risk for COVID-19 infection. Prepandemic resilience was assessed via self-report between 2017 and 2019 based on self-reported lifetime trauma exposure and psychological health. COVID-19 infection and symptoms were self-reported on seven questionnaires administered between May 2020 and October 2021, from which we derived a composite outcome measure of probable COVID-19 infection, defined as having 3+ COVID-19 symptoms (out of 9) and/or a positive COVID-19 test result at any single assessment. Multivariable regression revealed significant associations between higher prepandemic resilience scores and lower risk for probable COVID-19 infection, adjusting for sociodemographic and COVID-19-related risk factors (risk ratio [RR] = 0.90 [95% confidence interval {CI}, 0.87-0.93]). Considering subcomponents of the composite COVID-19 infection measure separately, prepandemic resilience was significantly associated with lower risk of reported symptoms (RR = 0.83 [95% CI, 0.79-0.88]), but not with a positive test result alone (RR = 0.96 [95% CI, 0.91-1.01]). Identifying protective factors for infection risk may help inform psychosocial interventions to improve health outcomes.

Comparing Visual and Software-Based Quantitative Assessment Scores of Lungs' Parenchymal Involvement Quantification in COVID-19 Patients.

(1) Background: Computed tomography (CT) plays a paramount role in the characterization and follow-up of COVID-19. Several score systems have been implemented to properly assess the lung parenchyma involved in patients suffering from SARS-CoV-2 infection, such as the visual quantitative assessment score (VQAS) and software-based quantitative assessment score (SBQAS) to help in managing patients with SARS-CoV-2 infection. This study aims to investigate and compare the diagnostic accuracy of the VQAS and SBQAS with two different types of software based on artificial intelligence (AI) in patients affected by SARS-CoV-2. (2) Methods: This is a retrospective study; a total of 90 patients were enrolled with the following criteria: patients' age more than 18 years old, positive test for COVID-19 and unenhanced chest CT scan obtained between March and June 2021. The VQAS was independently assessed, and the SBQAS was performed with two different artificial intelligence-driven software programs (Icolung and CT-COPD). The Intraclass Correlation Coefficient (ICC) statistical index and Bland-Altman Plot were employed. (3) Results: The agreement scores between radiologists (R1 and R2) for the VQAS of the lung parenchyma involved in the CT images were good (ICC = 0.871). The agreement score between the two software types for the SBQAS was moderate (ICC = 0.584). The accordance between Icolung and the median of the visual evaluations (Median R1-R2) was good (ICC = 0.885). The correspondence between CT-COPD and the median of the VQAS (Median R1-R2) was moderate (ICC = 0.622). (4) Conclusions: This study showed moderate and good agreement upon the VQAS and the SBQAS; enhancing this approach as a valuable tool to manage COVID-19 patients and the combination of AI tools with physician expertise can lead to the most accurate diagnosis and treatment plans for patients.

A joint penalized spline smoothing model for the number of positive and negative COVID-19 tests.

One of the key tools to understand and reduce the spread of the SARS-CoV-2 virus is testing. The total number of tests, the number of positive tests, the number of negative tests, and the positivity rate are interconnected indicators and vary with time. To better understand the relationship between these indicators, against the background of an evolving pandemic, the association between the number of positive tests and the number of negative tests is studied using a joint modeling approach. All countries in the European Union, Switzerland, the United Kingdom, and Norway are included in the analysis. We propose a joint penalized spline model in which the penalized spline is reparameterized as a linear mixed model. The model allows for flexible trajectories by smoothing the country-specific deviations from the overall penalized spline and accounts for heteroscedasticity by allowing the autocorrelation parameters and residual variances to vary among countries. The association between the number of positive tests and the number of negative tests is derived from the joint distribution for the random intercepts and slopes. The correlation between the random intercepts and the correlation between the random slopes were both positive. This suggests that, when countries increase their testing capacity, both the number of positive tests and negative tests will increase. A significant correlation was found between the random intercepts, but the correlation between the random slopes was not significant due to a wide credible interval.