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Nevin Manimala Statistics

Temporal trends in self-reported HIV stigma and association with adherence and viral suppression in the African Cohort Study

AIDS Care. 2021 Oct 6:1-8. doi: 10.1080/09540121.2021.1984380. Online ahead of print.

ABSTRACT

HIV stigma is a major barrier to HIV care and treatment among people living with HIV (PLWH). Evidence suggests that expansion in antiretroviral therapy (ART) may reduce stigma. However, there are limited longitudinal studies examining temporal trends in HIV stigma in sub-Saharan Africa in the Undetectable = Untransmittable (U = U) era. We longitudinally assessed temporal trends in self-reported experienced stigma and the association of experienced stigma with ART adherence and viral suppression among PLWH enrolled in the African Cohort Study (AFRICOS). AFRICOS is an ongoing cohort study enrolling PLWH in Uganda, Kenya, Tanzania, and Nigeria. As of 1 March 2020, 2937 PLWH enrolled in AFRICOS and had available data. In 2013, 22% of participants reported stigma at the enrollment visit and by 2018 the prevalence decreased to 1% overall and was below 2% for all countries. However, there was not a statistically significant change in stigma prevalence in our longitudinal models. In adjusted models, experiencing stigma was associated with a 0.67 decreased odds of ART Adherence (95% confidence interval (CI): 0.56-0.80) and a 0.64 decreased odds of viral suppression (95% CI: 0.73-0.99). HIV-associated stigma was associated with poor self-reported ART adherence and unsuppressed viral load.

PMID:34612100 | DOI:10.1080/09540121.2021.1984380

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Nevin Manimala Statistics

A randomized, feasibility trial of an exercise and nutrition-based rehabilitation programme (ENeRgy) in people with cancer

J Cachexia Sarcopenia Muscle. 2021 Oct 5. doi: 10.1002/jcsm.12806. Online ahead of print.

ABSTRACT

BACKGROUND: Despite rehabilitation being increasingly advocated for people living with incurable cancer, there is limited evidence supporting efficacy or component parts. The progressive decline in function and nutritional in this population would support an approach that targets these factors. This trial aimed to assess the feasibility of an exercise and nutrition based rehabilitation programme in people with incurable cancer.

METHODS: We randomized community dwelling adults with incurable cancer to either a personalized exercise and nutrition based programme (experimental arm) or standard care (control arm) for 8 weeks. Endpoints included feasibility, quality of life, physical activity (step count), and body weight. Qualitative and health economic analyses were also included.

RESULTS: Forty-five patients were recruited (23 experimental arm, 22 control arm). There were 26 men (58%), and the median age was 78 years (IQR 69-84). At baseline, the median BMI was 26 kg/m2 (IQR: 22-29), and median weight loss in the previous 6 months was 5% (IQR: -12% to 0%). Adherence to the experimental arm was >80% in 16/21 (76%) patients. There was no statistically significant difference in the following between trial arms: step count – median % change from baseline to endpoint, per trial arm (experimental -18.5% [IQR: -61 to 65], control 5% [IQR: -32 to 50], P = 0.548); weight – median % change from baseline to endpoint, per trial arm (experimental 1%[IQR: -3 to 3], control -0.5% [IQR: -3 to 1], P = 0.184); overall quality of life – median % change from baseline to endpoint, per trial arm (experimental 0% [IQR: -20 to 19], control 0% [IQR: -23 to 33], P = 0.846). Qualitative findings observed themes of capability, opportunity, and motivation amongst patients in the experimental arm. The mean incremental cost of the experimental arm versus control was £-319.51 [CI -7593.53 to 6581.91], suggesting the experimental arm was less costly.

CONCLUSIONS: An exercise and nutritional rehabilitation intervention is feasible and has potential benefits for people with incurable cancer. A larger trial is now warranted to test the efficacy of this approach.

PMID:34612012 | DOI:10.1002/jcsm.12806

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Nevin Manimala Statistics

Validation of the 4-Item PRECISE-DAPT Score: A SWEDEHEART Study

J Am Heart Assoc. 2021 Oct 6:e020974. doi: 10.1161/JAHA.121.020974. Online ahead of print.

ABSTRACT

Background The Predicting Bleeding Complications in Patients Undergoing Stent Implantation and Subsequent Dual Antiplatelet Therapy (PRECISE-DAPT) score has been shown to predict out-of-hospital major bleeding after myocardial infarction treated with percutaneous coronary intervention and dual antiplatelet therapy (DAPT). However, large validation studies have been scarce and the discriminative ability for patients with a preexisting bleeding risk factor (elderly, underweight, women, anemia, kidney dysfunction, or cancer) in a real-world setting is unknown. Methods and Results Patients undergoing percutaneous coronary intervention for myocardial infarction between 2008 and 2017 were included from the SWEDEHEART (Swedish Web System for Enhancement of Evidence-Based Care in Heart Disease Evaluated According to Recommended Therapies) registry (n=66 295). The predictive value of the PRECISE-DAPT score for rehospitalization with major bleeding during dual antiplatelet therapy was evaluated using receiver operating characteristic analyses. A high PRECISE-DAPT score (≥25; n=13 894) was associated with increased risk of major bleeding (3.9% versus 1.8%; hazard ratio [HR], 2.2; 95% CI, 2.0-2.5; P<0.001) compared with a non-high score (<25; n=52 401). The score demonstrated a c-statistic of 0.64 (95% CI, 0.63-0.66). The discriminative ability of the score to further stratify bleeding risk in patients with preexisting bleeding risk factors was poor, especially in patients who are elderly (c-statistic=0.57; 95% CI, 0.55-0.60) or underweight (c-statistic=0.56; 95% CI, 0.51-0.61), for whom a non-high PRECISE-DAPT score was associated with similar bleeding risk as a high PRECISE-DAPT score in the general myocardial infarction population. Conclusions In this nationwide population-based study, the PRECISE-DAPT score performed moderately in the general myocardial infarction population and poorly in patients with preexisting bleeding risk factors, where its usefulness seems limited.

PMID:34612051 | DOI:10.1161/JAHA.121.020974

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Nevin Manimala Statistics

A single-institution retrospective study of causes of prolonged prothrombin time and activated partial thromboplastin time in the outpatient setting

Int J Lab Hematol. 2021 Oct 5. doi: 10.1111/ijlh.13727. Online ahead of print.

ABSTRACT

INTRODUCTION: An algorithmic approach, termed the prolonged clot time profile (PROCT), consisting of initial screening with prothrombin time (PT) and activated partial thromboplastin time (aPTT), reflexive mixing studies if indicated, and follow-up assays depending on initial testing results, offers an efficient approach to delineate the etiology of a prolonged PT/aPTT. Herein, we present the outcomes of the PROCT in the outpatient setting.

METHODS: In this retrospective study, we reviewed medical records of consecutive outpatients who had prolonged PT and/or aPTT noted in the routine coagulation laboratory and who had PROCT ordered in our institutional Special Coagulation Laboratory between 2010 and 2017.

RESULTS: One hundred and six patients, median age 55 years (IQR 30-67), met our study criteria. Twenty-nine patients had normal PT/aPTT, while 77 had persistent abnormalities and underwent reflexive testing. A prolonged PT, aPTT, or PT and aPTT was noted in 27 (35%), 27 (35%), and 23 (30%) respectively. Forty-nine (64%) had an acquired condition, 17 (22%) had a congenital condition, 7 (9%) had unclear etiology, and 4 (5%) were the result of laboratory artifact. The most common known cause of an isolated prolonged PT in our study was vitamin K deficiency in 8 (10%), the most common cause of an isolated prolonged aPTT was lupus anticoagulant in 4 (5%), and the most common cause of prolonged PT and aPTT was liver disease in 11 (14%).

CONCLUSION: Prolonged PT/aPTT have a wide range of causes, including artifactual prolongation or abnormalities in secondary hemostasis due to both inherited and acquired conditions.

PMID:34612006 | DOI:10.1111/ijlh.13727

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Nevin Manimala Statistics

Understanding the effectiveness of government interventions against the resurgence of COVID-19 in Europe

Nat Commun. 2021 Oct 5;12(1):5820. doi: 10.1038/s41467-021-26013-4.

ABSTRACT

European governments use non-pharmaceutical interventions (NPIs) to control resurging waves of COVID-19. However, they only have outdated estimates for how effective individual NPIs were in the first wave. We estimate the effectiveness of 17 NPIs in Europe’s second wave from subnational case and death data by introducing a flexible hierarchical Bayesian transmission model and collecting the largest dataset of NPI implementation dates across Europe. Business closures, educational institution closures, and gathering bans reduced transmission, but reduced it less than they did in the first wave. This difference is likely due to organisational safety measures and individual protective behaviours-such as distancing-which made various areas of public life safer and thereby reduced the effect of closing them. Specifically, we find smaller effects for closing educational institutions, suggesting that stringent safety measures made schools safer compared to the first wave. Second-wave estimates outperform previous estimates at predicting transmission in Europe’s third wave.

PMID:34611158 | DOI:10.1038/s41467-021-26013-4

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Nevin Manimala Statistics

Scientific prizes and the extraordinary growth of scientific topics

Nat Commun. 2021 Oct 5;12(1):5619. doi: 10.1038/s41467-021-25712-2.

ABSTRACT

Fast growing scientific topics have famously been key harbingers of the new frontiers of science, yet, large-scale analyses of their genesis and impact are rare. We investigated one possible factor connected with a topic’s extraordinary growth: scientific prizes. Our longitudinal analysis of nearly all recognized prizes worldwide and over 11,000 scientific topics from 19 disciplines indicates that topics associated with a scientific prize experience extraordinary growth in productivity, impact, and new entrants. Relative to matched non-prizewinning topics, prizewinning topics produce 40% more papers and 33% more citations, retain 55% more scientists, and gain 37 and 47% more new entrants and star scientists, respectively, in the first five-to-ten years after the prize. Funding do not account for a prizewinning topic’s growth. Rather, growth is positively related to the degree to which the prize is discipline-specific, conferred for recent research, or has prize money. These findings reveal new dynamics behind scientific innovation and investment.

PMID:34611161 | DOI:10.1038/s41467-021-25712-2

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Nevin Manimala Statistics

Focusing on the Medically Ready for Discharge Patient Using a Reliable Design Strategy: A Quality Improvement Project to Improve Length of Stay on a Medicine Service

Qual Manag Health Care. 2021 Oct 4. doi: 10.1097/QMH.0000000000000338. Online ahead of print.

ABSTRACT

BACKGROUND AND OBJECTIVES: Length of stay is a common measure of efficiency of care. We aimed to reduce length of stay on a general medicine service through a structured quality improvement project.

METHODS: A reliable design strategy was implemented in successive stages at a 238-bed academically-affiliated VA hospital. Over a 2-year period, continuous improvement efforts were directed at discrete cohorts of patients deemed medically appropriate for discharge but who remained hospitalized because of discharge barriers. We compared the mean length of stay and medically-ready bed days of care for a hospital in statistical control charts. Pre- and post-intervention comparisons were made using t-tests.

RESULTS: In total, 5321 discharges were included in this improvement project, accounting for 35 852 bed days of care. Overall, average length of stay was reduced by 15.7%, from 7.62 to 6.40 days (P < .05). There was a significant reduction in the mean number of medically-ready bed days of care from 2.3 to 1.72. Statistical process control charts demonstrated special cause variation across patient cohorts.

CONCLUSION: A quality improvement project using reliable design principles was associated with shorter length of stay.

PMID:34611121 | DOI:10.1097/QMH.0000000000000338

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Nevin Manimala Statistics

Systematic review and meta-analyses of studies analysing instructions to authors from 1987 to 2017

Nat Commun. 2021 Oct 5;12(1):5840. doi: 10.1038/s41467-021-26027-y.

ABSTRACT

To gain insight into changes of scholarly journals’ recommendations, we conducted a systematic review of studies that analysed journals’ Instructions to Authors (ItAs). We summarised results of 153 studies, and meta-analysed how often ItAs addressed: 1) authorship, 2) conflicts of interest, 3) data sharing, 4) ethics approval, 5) funding disclosure, and 6) International Committee of Medical Journal Editors’ Uniform Requirements for Manuscripts. For each topic we found large between-study heterogeneity. Here, we show six factors that explained most of that heterogeneity: 1) time (addressing of topics generally increased over time), 2) country (large differences found between countries), 3) database indexation (large differences found between databases), 4) impact factor (topics were more often addressed in highest than in lowest impact factor journals), 5) discipline (topics were more often addressed in Health Sciences than in other disciplines), and 6) sub-discipline (topics were more often addressed in general than in sub-disciplinary journals).

PMID:34611157 | DOI:10.1038/s41467-021-26027-y

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Nevin Manimala Statistics

Modeling Patient Risk for Hospital-Acquired Pressure Injuries During COVID-19: A Retrospective Study

J Nurs Care Qual. 2021 Oct 4. doi: 10.1097/NCQ.0000000000000602. Online ahead of print.

ABSTRACT

BACKGROUND: COVID-19 negatively impacts many organ systems including the skin. One of the most significant skin-associated adverse events related to hospitalization are pressure injuries.

PURPOSE: The aim of this study was to determine 8 risk factors that would place hospitalized patients at a higher risk for hospital-acquired pressure injuries (HAPIs) during the COVID-19 pandemic.

METHODS: A retrospective, descriptive analysis was conducted in an urban academic health science center located in the southeastern United States.

RESULTS: There were 247 of 23 093 patients who had pressure injuries and 1053 patients who had a positive COVID-19 diagnosis. Based on the generalized estimating equation model, diagnosis of COVID-19, age, male gender, risk of mortality, severity of illness, and length of stay are statistically significant factors associated with the development of HAPIs.

CONCLUSIONS: Further study should explore pathology of COVID-19 skin changes and what interventions are effective against HAPIs in the COVID-19 population taking into consideration current treatments.

PMID:34611108 | DOI:10.1097/NCQ.0000000000000602

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Nevin Manimala Statistics

Evaluation of the Effects of Systemic Irisin Hormone Application on Osseointegration of Titanium Implants: An Experimental Study

J Craniofac Surg. 2021 Oct 5. doi: 10.1097/SCS.0000000000008267. Online ahead of print.

ABSTRACT

This study aimed to conduct a biomechanical investigation of the effects of systemic irisin hormone application on the osseointegration of titanium implants in rat tibias. After surgical implementation of titanium implants in the metaphyseal part of the tibiae of rats, the rats were randomly divided into 2 equal groups: control group (n = 10) and irisin group (n = 10). After surgery in the control group, the rats received no further treatment during the 4-week experimental period. The rats in the irisin group were given 100 ng/kg irisin every day for the 4-week experimental period after surgery. At the end of the experimental period, the rats were euthanized. Implants and surrounding bone tissues were collected for biomechanical (Newton) bone implant connection analysis. The Student t test was used for statistical analysis. There were no significant differences in the biomechanical osseointeration values (Newton) of the groups (P > 0.05, P = 0.59). Also, in the irisin group, there was numerically but not statistically more bone implant connection than in the controls. Within the limitations of this study, irisin did not affect the osseointegration of titanium implants.

PMID:34611101 | DOI:10.1097/SCS.0000000000008267