Categories
Nevin Manimala Statistics

The role of author identities in peer review

PLoS One. 2023 Jun 21;18(6):e0286206. doi: 10.1371/journal.pone.0286206. eCollection 2023.

ABSTRACT

There is widespread debate on whether to anonymize author identities in peer review. The key argument for anonymization is to mitigate bias, whereas arguments against anonymization posit various uses of author identities in the review process. The Innovations in Theoretical Computer Science (ITCS) 2023 conference adopted a middle ground by initially anonymizing the author identities from reviewers, revealing them after the reviewer had submitted their initial reviews, and allowing the reviewer to change their review subsequently. We present an analysis of the reviews pertaining to the identification and use of author identities. Our key findings are: (I) A majority of reviewers self-report not knowing and being unable to guess the authors’ identities for the papers they were reviewing. (II) After the initial submission of reviews, 7.1% of reviews changed their overall merit score and 3.8% changed their self-reported reviewer expertise. (III) There is a very weak and statistically insignificant correlation of the rank of authors’ affiliations with the change in overall merit; there is a weak but statistically significant correlation with respect to change in reviewer expertise. We also conducted an anonymous survey to obtain opinions from reviewers and authors. The main findings from the 200 survey responses are: (i) A vast majority of participants favor anonymizing author identities in some form. (ii) The “middle-ground” initiative of ITCS 2023 was appreciated. (iii) Detecting conflicts of interest is a challenge that needs to be addressed if author identities are anonymized. Overall, these findings support anonymization of author identities in some form (e.g., as was done in ITCS 2023), as long as there is a robust and efficient way to check conflicts of interest.

PMID:37342992 | DOI:10.1371/journal.pone.0286206

Categories
Nevin Manimala Statistics

Prognostic factors of COVID-19: an umbrella review endorsed by the International Society for Pharmacoepidemiology

Clin Pharmacol Ther. 2023 Jun 21. doi: 10.1002/cpt.2977. Online ahead of print.

ABSTRACT

During the COVID-19 pandemic, the urgency for updated evidence to inform public health and clinical care placed systematic literature reviews (SLR) at the cornerstone of research. We aimed to summarize evidence on prognostic factors for COVID-19 outcomes through published SLRs and to critically assess quality elements in the findings’ interpretation. An umbrella review was conducted via electronic databases from January 2020 to April 2022. All SLRs (and meta-analyses) in English were considered. Data screening and extraction were conducted by two independent reviewers. AMSTAR 2 tool was used to assess SLR quality. The study was registered with PROSPERO (CRD4202232576). Out of 4,564 publications, 171 SLRs were included of which 3 were umbrella reviews. Our primary analysis included 35 SLRs published in 2022 which incorporated studies since the beginning of the pandemic. Consistent findings showed that, for adults, older age, obesity, heart disease, diabetes, and cancer were more strongly predictive of risk of hospitalization, intensive care unit admission, and mortality due to COVID-19. Male sex was associated with higher risk of short-term adverse outcomes, but female sex was associated with higher risk of long COVID. For children, socioeconomic determinants that may unravel COVID-19 disparities were rarely reported. This review highlights key prognostic factors of COVID-19, which can help clinicians and health officers identify high-risk groups for optimal care. Findings can also help optimize confounding adjustment and patient phenotyping in comparative effectiveness research. A living SLR approach may facilitate dissemination of new findings. This paper is endorsed by the International Society for Pharmacoepidemiology.

PMID:37342987 | DOI:10.1002/cpt.2977

Categories
Nevin Manimala Statistics

Machine learning based canine posture estimation using inertial data

PLoS One. 2023 Jun 21;18(6):e0286311. doi: 10.1371/journal.pone.0286311. eCollection 2023.

ABSTRACT

The aim of this study was to design a new canine posture estimation system specifically for working dogs. The system was composed of Inertial Measurement Units (IMUs) that are commercially available, and a supervised learning algorithm which was developed for different behaviours. Three IMUs, each containing a 3-axis accelerometer, gyroscope, and magnetometer, were attached to the dogs’ chest, back, and neck. To build and test the model, data were collected during a video-recorded behaviour test where the trainee assistance dogs performed static postures (standing, sitting, lying down) and dynamic activities (walking, body shake). Advanced feature extraction techniques were employed for the first time in this field, including statistical, temporal, and spectral methods. The most important features for posture prediction were chosen using Select K Best with ANOVA F-value. The individual contributions of each IMU, sensor, and feature type were analysed using Select K Best scores and Random Forest feature importance. Results showed that the back and chest IMUs were more important than the neck IMU, and the accelerometers were more important than the gyroscopes. The addition of IMUs to the chest and back of dog harnesses is recommended to improve performance. Additionally, statistical and temporal feature domains were more important than spectral feature domains. Three novel cascade arrangements of Random Forest and Isolation Forest were fitted to the dataset. The best classifier achieved an f1-macro of 0.83 and an f1-weighted of 0.90 for the prediction of the five postures, demonstrating a better performance than previous studies. These results were attributed to the data collection methodology (number of subjects and observations, multiple IMUs, use of common working dog breeds) and novel machine learning techniques (advanced feature extraction, feature selection and modelling arrangements) employed. The dataset and code used are publicly available on Mendeley Data and GitHub, respectively.

PMID:37342986 | DOI:10.1371/journal.pone.0286311

Categories
Nevin Manimala Statistics

The COVID-19 Crisis and the Incidence of Alcohol-Related Deaths in Poland

Med Sci Monit. 2023 Jun 21;29:e940904. doi: 10.12659/MSM.940904.

ABSTRACT

BACKGROUND Identifying risk and protective factors for excessive alcohol consumption can inform targeted health policies, reducing the impact of potential mental health crises. This study examined the validity and reliability of COVID-19-related death data and explored the correlations among age, sex, residential status, alcohol abuse, and healthcare access. MATERIAL AND METHODS This analysis of Polish residents’ mortality relies on individual data from the register of deaths maintained by Statistics Poland. This study examined deviations in the number of deaths between 2020 and 2021 by analyzing specific causes of death. RESULTS Alcohol abusers had increased COVID-19 risk factors compared to the general population. F10 values were 22% higher than expected in 2020, aligning with predictions for 2021. Higher mortality rates were observed in the first year of the pandemic. In 2020, women and rural residents were more affected (31% and 25% higher than expected, respectively), while men and urban residents were less affected (21% and 20% higher than expected, respectively). In 2021, the trend reversed, with men 2% higher than predicted and women 4% lower. Urban area residents had a 77% lower than expected value, while rural area residents were similar (8% higher). Overall mortality exceeded expectations in both 2020 (13% higher) and 2021 (23% higher). In 2021, alcohol-related non-mental health problems increased by more than 40% in standardized death rates (SDRs). CONCLUSIONS Alcohol-related deaths reflect the hidden effects of the pandemic. Measuring the pandemic’s impact on global excess mortality is hindered by inconsistencies in COVID-19 death reporting.

PMID:37342984 | DOI:10.12659/MSM.940904

Categories
Nevin Manimala Statistics

Chronic Health Risk for Chinese Adults and Breastfed Infants on Dietary Exposure to Chlorothalonil and Its Main Metabolite

J Agric Food Chem. 2023 Jun 21. doi: 10.1021/acs.jafc.3c02512. Online ahead of print.

ABSTRACT

This study presents the first nationwide study on the chronic health risks of chlorothalonil and its metabolite (4-OH-chlorothalonil) for Chinese adults and breastfed infants via dietary intake. The determination of chlorothalonil and 4-OH-chlorothalonil in dietary samples was accomplished by cold-induced liquid-liquid extraction using liquid chromatography─high-resolution mass spectrometry. Chlorothalonil and 4-OH-chlorothalonil were detected in 43.1 and 46.1% of total dietary samples, respectively, while only 4-OH-chlorothalonil was detected in 100% of breast milk samples. Chlorothalonil and 4-OH-chlorothalonil residues in dietary samples of Northwest China and Shandong regions were higher in comparison to those of other regions. No correlation between 4-OH-chlorothalonil residues in breast milk and adult daily dietary intake to total chlorothalonil indicates the presence of other exposure routes besides dietary exposure. Furthermore, a residue analysis of 4-OH-chlorothalonil in breast milk between urban and rural areas in all sampling locales showed no statistical difference (p > 0.05). The findings of this study reveal that the chronic health risks caused by dietary exposure to chlorothalonil and 4-OH-chlorothalonil are low for Chinese adults and breastfed infants.

PMID:37342977 | DOI:10.1021/acs.jafc.3c02512

Categories
Nevin Manimala Statistics

The Effects of MBSR Programme on Prenatal Comfort and Fetal Health Anxiety in Pregnant Women

J Reprod Infant Psychol. 2023 Jun 21:1-15. doi: 10.1080/02646838.2023.2227219. Online ahead of print.

ABSTRACT

OBJECTIVE: This study was conducted to examine the effect of the online Mindfulness-Based Stress Reduction (MBSR) programme applied to pregnant women on their prenatal comfort and foetal anxiety levels.

MATERIAL AND METHOD: This randomised controlled study was conducted between July and October 2022, with 89 pregnant women registered in a Family Health Centre of Adiyaman, located in the Southeastern Anatolia region of Turkey. In the study, a total of eight sessions of MBSR programme, one session per week for eight weeks, were applied to the pregnant women in the experimental group. Data of the study was collected with the ‘Personal Information Form’, ‘Prenatal Comfort Scale (PCS)’, and ‘Fetal Health Anxiety Inventory (FHAI)’. Descriptive statistics, chi-square test, and t-test for independent and dependent samples were utilised in the analysis of the data.

RESULTS: It has been determined that the PCS total mean score after the intervention is 58.91 ± 7.18 in the experimental group and 50.56 ± 15.78 in the control group; the post-test FHAI total mean score is 4.52 ± 1.66 in the experimental group and 9.76 ± 5.00 in the control group, and the difference between the groups is statistically significant (p < 0.001).

CONCLUSION: It has been determined that the MBSR programme applied to pregnant women has increased the prenatal comfort levels of pregnant women and has decreased foetal health anxieties. In line with these results, it is recommended that the MBSR programme may be used as an alternative method to relieve pregnant women.

PMID:37342975 | DOI:10.1080/02646838.2023.2227219

Categories
Nevin Manimala Statistics

Expanding the stdpopsim species catalog, and lessons learned for realistic genome simulations

Elife. 2023 Jun 21;12:RP84874. doi: 10.7554/eLife.84874.

ABSTRACT

Simulation is a key tool in population genetics for both methods development and empirical research, but producing simulations that recapitulate the main features of genomic datasets remains a major obstacle. Today, more realistic simulations are possible thanks to large increases in the quantity and quality of available genetic data, and the sophistication of inference and simulation software. However, implementing these simulations still requires substantial time and specialized knowledge. These challenges are especially pronounced for simulating genomes for species that are not well-studied, since it is not always clear what information is required to produce simulations with a level of realism sufficient to confidently answer a given question. The community-developed framework stdpopsim seeks to lower this barrier by facilitating the simulation of complex population genetic models using up-to-date information. The initial version of stdpopsim focused on establishing this framework using six well-characterized model species (Adrion et al., 2020). Here, we report on major improvements made in the new release of stdpopsim (version 0.2), which includes a significant expansion of the species catalog and substantial additions to simulation capabilities. Features added to improve the realism of the simulated genomes include non-crossover recombination and provision of species-specific genomic annotations. Through community-driven efforts, we expanded the number of species in the catalog more than threefold and broadened coverage across the tree of life. During the process of expanding the catalog, we have identified common sticking points and developed the best practices for setting up genome-scale simulations. We describe the input data required for generating a realistic simulation, suggest good practices for obtaining the relevant information from the literature, and discuss common pitfalls and major considerations. These improvements to stdpopsim aim to further promote the use of realistic whole-genome population genetic simulations, especially in non-model organisms, making them available, transparent, and accessible to everyone.

PMID:37342968 | DOI:10.7554/eLife.84874

Categories
Nevin Manimala Statistics

Self-reported concussions in Canada: A cross-sectional study

Health Rep. 2023 Jun 21;34(6):17-28. doi: 10.25318/82-003-x202300600002-eng.

ABSTRACT

BACKGROUND: Traumatic brain injuries (TBIs) are a major public health concern impacting the lives of many Canadians. Among all TBIs, concussions are the most common. However, to date, the incidence of concussions among the Canadian population, has remained unknown. To address this data surveillance gap, this study presents national estimates on the percentage of Canadians aged 12 years or older (excluding those living in the territories) who sustained one or more concussions in 2019.

DATA AND METHODS: This study used data collected from the Traumatic Brain Injury Rapid Response (TBIRR) module of the 2020 Canadian Community Health Survey, a cross-sectional health survey. Descriptive statistics and logistic regressions were conducted to summarize the information in the TBIRR module.

RESULTS: This study found that approximately 1.6% of Canadians aged 12 years or older reported sustaining one or more concussions in 2019. Age was significantly associated with concussion incidence after controlling for sex and annual household income, and the locations and activities surrounding respondents’ most serious concussions varied by age group. Over one-third of respondents sustained multiple concussions.

INTERPRETATION: The results suggest that certain populations, particularly younger individuals, may be more affected by concussions. While circumstances surrounding concussions vary by age group, the most important contributing factors were sports or physical activities among youth and falls among the adult population. Monitoring concussions among the national population is an important activity in injury surveillance, as it can help evaluate the efficacy of injury prevention intervention and better understand knowledge gaps and the burden of this injury.

PMID:37342962 | DOI:10.25318/82-003-x202300600002-eng

Categories
Nevin Manimala Statistics

Clinical characteristics of community-acquired pneumonia in children caused by mycoplasma pneumoniae with or without myocardial damage: A single-center retrospective study

World J Clin Pediatr. 2023 Jun 9;12(3):115-124. doi: 10.5409/wjcp.v12.i3.115. eCollection 2023 Jun 9.

ABSTRACT

BACKGROUND: Mycoplasma pneumoniae (MP) is a prevalent pathogen that causes respiratory infections in children and adolescents.

AIM: To assess the differences in the clinical features of MP-associated community-acquired pneumonia (CAP) in children who presented with mild or severe mycoplasma pneumoniae pneumonia (MPP); to identify the incidence of myocardial damage between the two groups.

METHODS: This work is a retrospective study. We identified children between 2 mo and 16 years of age with clinical and radiological findings consistent with CAP. We admitted patients to the inpatient department of the Second Hospital of Jilin University, Changchun, China, from January 2019 to December 2019.

RESULTS: A total of 409 hospitalized patients were diagnosed with MPP. Among them were 214 (52.3%) males and 195 (47.7%) females. The duration of fever and cough was the longest in severe MPP cases. Similarly, plasma levels of highly sensitive C-reactive protein (t = -2.834, P < 0.05), alanine transaminase (t = -2.511, P < 0.05), aspartate aminotransferase (t = -2.939, P < 0.05), and lactate dehydrogenase (LDH) (t = -2.939, P < 0.05) were all elevated in severe MPP cases compared with mild MPP cases, and these elevations were statistically significant (P < 0.05). Conversely, the neutrophil percentage was significantly lower in severe MPP cases than in mild MPP cases. The incidence of myocardial damage was significantly higher in severe MPP cases than in mild MPP cases (χ2 = 157.078, P < 0.05).

CONCLUSION: Mycoplasma pneumoniae is the main cause of CAP. The incidence of myocardial damage was higher and statistically significant in severe MPP cases than in mild MPP cases.

PMID:37342450 | PMC:PMC10278075 | DOI:10.5409/wjcp.v12.i3.115

Categories
Nevin Manimala Statistics

Drug-coated balloon therapy is more effective in treating late drug-eluting stent in-stent restenosis than the early occurring one-a systematic review and meta-analysis

Front Cardiovasc Med. 2023 Jun 5;10:1062130. doi: 10.3389/fcvm.2023.1062130. eCollection 2023.

ABSTRACT

Drug-eluting stent in-stent restenosis (DES-ISR) remains one of the important assignments to be resolved in interventional cardiology, as it is present in 5%-10% of total percutaneous coronary intervention cases. Drug-coated balloon (DCB) utilization is promising, as it comes with long-term protection from recurrent restenosis in optimal conditions without the hazard of higher risk for stent thrombosis and in-stent restenosis. We aim to reduce the need for recurrent revascularization in DES-ISR, specifying the population in which the DCB therapy should be used. In this meta-analysis, the results of studies containing data on the time frame between drug-eluting stent implantation and the clinical presentation of in-stent restenosis and concomitant drug-coated balloon treatment were summarized. A systematic search was performed in Medline, Central, Web of Science, Scopus and Embase databases on November 11th, 2021. The QUIPS tool was used to assess the risk of bias in the included studies. The occurrence of a major cardiac adverse events (MACE) composite endpoint, containing target lesion revascularization (TLR), myocardial infarction, and cardiac death, and each of these separately, was assessed at 12 months after the balloon treatment. Random effects meta-analysis models were used for statistical analysis. Data of 882 patients from four studies were analyzed. Across the included studies, a 1.68 OR (CI 1.57-1.80, p < 0.01) for MACE and a 1.69 OR (CI 1.18-2.42 p < 0.01) for TLR were observed, both in favor of late DES-ISR. The main limitation of the study is the relatively low patient number. Nevertheless, this analysis shows the first statistically significant results for the effect of DCB treatment in the early or late presentation of DES-ISR. As to date, intravascular imaging (IVI) remains limitedly accessible, other landmarks as the time frame of in-stent restenosis development are to be pursued to advance therapeutic outcomes. In consideration of other biological, technical and mechanical factors, time frame of occurrence as a prognostic factor could reduce the burden of recurrent revascularization in patients at an already high risk. Systematic Review Registration: identifier [CRD42021286262].

PMID:37342438 | PMC:PMC10277682 | DOI:10.3389/fcvm.2023.1062130